Aeg S7088KG User Manual

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Aeg S7088KG User Manual | Manualzz
 New Cabinet Design Refrigeration
Electronic Fountain Service Man Ц al
New Crusher Bin Assembly
16009103
Issued 1998
Revised 2/00
SAFETY PRECAUTIONS
THIS MANUAL IS TO BE USED ONLY BY A MAYTAG AUTHORIZED SERVICE TECHNICIAN
FAMILIAR WITH AND KNOWLEDGEABLE OF PROPER SAFETY AND SERVICING PROCE-
DURES AND POSSESSING HIGH QUALITY TESTING EQUIPMENT ASSOCIATED WITH
MICROWAVE, GAS, AND ELECTRICAL APPLIANCE REPAIR.
ALL INDIVIDUALS WHO ATTEMPT REPAIRS BY IMPROPER MEANS OR ADJUSTMENTS,
SUBJECT THEMSELVES AND OTHERS TO THE RISK OF SERIOUS OR FATAL INJURY.
USE ONLY GENUINE MAYTAG APPROVED FACTORY REPLACEMENT COMPONENTS.
16009103-01 CONTENTS
©1999 Maytag Appliance Sales Company
INTRODUCTION
This refrigeration service manual provides the information necessary to service Side-by-
Side model refrigerators.
NOTE: ALL MODELS COVERED IN THIS SERVICE MANUAL USE R134A REFRIGER-
ANT.
The manual is printed in loose leaf format. Each part of this manual is divided into sec-
tions relating to a general group of components and each section is subdivided into
various parts describing a particular component or service procedure.
The subdividing of the subject matter, plus the loose leaf form, will facilitate the updating
of the manual as new models, and new or revised components of service procedures
are introduced.
Each page of this manual will be identified in the lower right hand corner. As new or
revised pages are published, it will be easy to keep the manual up to date.
This serivce manual is a valuable service tool and care should be taken to keep it up to
date by prompt and proper filing of subsequent pages as they are issued.
The following models are covered in this manual:
ALL “E” MODELS ARE ENERGY MODELS, AND HAVE A PREMIUM SOUND PACKAGE.
TA.
NOTE: WHEN SERVICING "E" MODELS, USE ONLY PARTS SHOWN FOR THAT MODEL IN
THE PARTS LIST.
©1999 Maytag Appliances Sales Company
MODEL NUMBERS
MAYTAG MAGIC CHEF JENN-AIR
MSB2154ARW/A — |MSD2754ARW/A | CSB2121ARW JCB2388ARW/A/B
MSB2354ARW/A — |MSD2756AEA/W/B |CSB2122ARW/A — |JCB2388ATW/B
MSB2554ARW/A | |MSD2757AEAW/B | CSB2323ARW/A Sona АВ
MSD2142ARW/A CSD2122ARW/A — | JCD2289ATW/B
MSD2143ARW/A ADMIRAL CSD2123ARW/A | JSD238BAEW/A/B
MSD2346AEW/A/B | ASD2514ARW/A — |CSD2324ARW/A | JSD2574ARW/B
MSD2354ARW/A CSD2325ARW/A — |JSD2588AEW/A/B
MSD2356AEW/A/B CSD2524ARW/A — |JSD2774ARW/B
MSD2543ARW/A CSD2525ARW/A — | JSD2789AEW/A/B/S
MSD2554ARW/A CSD2725ARW/A/B— | JSD2789ATW/B
MSD2556AEW/A/B JSD2989AEW/A/B
160091 03-01 CONTENTS bi
16009103-01
©1999 Maytag Appliance Sales Company
CONTENTS
CONTENTS
GENERAL SAFETY PRECAUTIONS .....................e..eeiemmemm e e e ree reno i
INTRODUCTION .…….….....….….c…vvrorecrecrarcenrensensranernerenenereneanennrenenenennenennna aan era eee H
CONTENTS …….......…..vevssssesrerrereencentanenerenrsrareennenesennenreraee eee ee iv
SECTION 1. GENERAL INFORMATION .................e..ereenerridr er e e 1-1
ELECTRICAL REQUIREMENTS..............e..nn ea eee ee ri eri e ne erre 1-1
SAFETY PRECAUTIONS «coors ieee eee sees esses esses oes eee ra mr, 1-1
Grounding Instructions ............. ee... ei ree er er aereo ra rre eee ai are 1-1
FORCED AIR SYSTEMS arena 1-2
AIR FLOW - FORCED AIR SYSTEMS .......................rierice miei e e enano erre aire 1-2
CHECKING OPERATION ..............em1eeeveiia ee ee Da rre ener e rre. 1-3
TOOLS NEEDED FOR R134A SEALED SYSTEM REPAIR............ecceeemnrene ne e e 1-4
ADDITIONAL SYSTEM INFORMATION ....................2-n nee e ere eee eee nee eee 1-5
R134A SEALED SYSTEM SERVICE PROCEDURE ...................ee1ereveeree eee ei 1-7
REFRIGERATION SYSTEM ............e.eeeeee0r0ree e Dee De ee e e erre eee 1-8
REFRIGERATION CYCLE .............. een ee ree er e erre re rear nee 1-9
DIAGNOSE EEE EEE EEE EEE 1-10
SEALED SYSTEM DIAGNOSE EEE es eee see eee ce 1-10
LEAK << Ca ee 1-12
COMPONENTS rer EEE EEE EEE EEE e sess eet eee eee eee meros 1-13
e esse sees esses 1-13
Condenser..............eiee eee eee e ener reee recreo Tener renacer rre ie rió 1-13
Yoder LOOP ....……..….isvsarsersirersennerrennentenenrsrnsenernrrnran rene nee ren eneeneanee near eee 1-14
EVOPOTBTOF .....………nesresrrirererrenremntreravessensessaramenen en eenenena eee eee eee 1-15
Heat Exchanger ................. ener eee ere eee rre rara re eroee ree peer recen neaereceieres 1-15
CN] asta see se arose sass sess see eee esse esses sesso 1-15
SYSTEM FLUSH cotinine ere een ari ran rice rc oa reee 1-15
SEALED SYSTEM REPAIR SUMMARY ................... ere e eos 1-16
SYSTEM FLUSH PROCEDURE ...............eeirereneeme DD ee e Deere eee 1-16
SWEEP AND FINAL CHARGE......................e.. eee e a enero 1-19
SECTION 2. COMPONENTS ...................e.e.r..ecercerere e ee e ere eerere ee eme eii 2-1
COMPRESSOR REPLACEMENT …………..……sssrereessrenenenteneenennenensrareneeneeennear eee eee 2-1
REPLACING THE COMPRESSOR............. eee e eee reir 2-1
CONDENSER REPLACEMENT.................e.rereneee nee e ener ere ere rióós 2-2
ELECTRICAL SYSTEM essen EEE eee Tener ree eee are a ere. 2-4
Testing the Compressor Direct ....................... e... ere erre e rre nee er nen aer, 2-4
Overload PTOTECTOF ……..….…..…cersenmnennnnmnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 2-5
Testing the Overload Protector ...................... ne erre ee ara e ran rre reee rr riores 2-5
PTC STARTING DEVICE AND RUN CAPACITOR ............. e... ie rre 2-6
PTC Device Replacement……………..…….………sermsnnmnnnnmnnnnmnnnnnnnnnnnnnnn nn e er 2-7
RUN CAPACITOR............... eme eee ree reee ecran pete inner nee 2-7
Testing the CapaCHOF ….….….….…………reenseneansensenennmennnnnnnnnnnnnnnnnnnnnnnnnnnn erre 2-7
Alternate Method Using Ohmmeter.................... 1 na enero rca 2-7
TEMPERATURE CONTROL .............. een eee earn e eee 2-8
Checking Operating Temperatures ........................ eee enn reee re are meri 2-8
Temperature Control Replacement ……………………nennennmenmnnnnnnnnnnnnnnn*nn 2-9
16009103-01 CONTENTS iv
©1998 Maytag Appliances Sales Company
Checking the Auto Damper ..................... rene eee eee eee sesso 2-11
Auto Damper Control Replacement ................ EEE e e rei eras 2-11
AUTO DAMPER CONTROL - Exploded View ….….………memnnnnnnmnnnnnnnnnnnnnn 2-12
NT A II 2-13
Checking the Defrost Timer ................. rn... een e eee oie ee mee 2-14
Timer REplaCEMENt ………………uarrereennennnçnenennnnnennnnnnnnnnnnnnnnnnnnnnnnnnn“nübüäûüb 2-14
ADAPTIVE DEFROST CONTROL .…...….……..…….……ucecraesrserersenecenrannensenenenrenrarenene areas eee 2-14
Checking the Adaptive Defrost Control .............. e... reee rene e reee 2-15
AIR FLOW - FORCED AIR SYSTEMS ..................0eereneernienmnene eee nao ree ercer riee 2-15
DEFROST HEATER REPLACEMENT .................en7eeeeenr e ee eee ios 2-17
DEFROST THERMOSTAT REPLACEMENT ...............e00reemm ee rre eee 2-17
CONDENSER FAN MOTOR ....................m.eeniieern e eee eee eee ee e ee 2-18
To Check Condenser Motor Direct .............. 2er e eee erre eri 2-18
Condenser Fan Motor Replacement …….…………merseneennmnennnnnnnnnnnnnnnnnnnmnnnmenenn 2-19
FREEZER FAN MOTOR ............eenennonneeena an 2-19
Freezer Fan Motor DiagnOsiS .……………….…sesennenennnnenmnnnmnnnnnnnnmnnnnmnnnnnnnnnnmnnn**mn 2-19
Freezer Fan Motor Replacement ……….………renenmnnsnnnnnnnnnnnnnnnnnnnnnnnnnqnäün 2-20
SECTION 3. CABINET & RELATED COMPONENTS ………….…..….….….…….….….…………………… 3-1
ADJUSTABLE CANTILEVER SHELVES ….………………rrrsersererennennennennenneerenre ere De ee ei 3-1
ADJUSTABLE CANTILEVER SHELF TRIMS ….………rererrerersenenmencenaneenrenarenirir mee me ri 3-1
CABINET DOORS AND ASSOCIATED PARTS .….u.……rrercercrenmensennnnnnnnnn rires 3-1
Inner Door Liner Replacement …….…….……………eerennsmmnnmnnnnnnnnnnnnnnnnnnn£nünüsün 3-1
Outer Door Panel Replacement ………………mnensnennnmnnnmnnmnnnnnnnnmnnmnmnnnn£ü 3-2
FRONT WHEEL ASSEMBLY ®……….…….……rceieseneanmenennnsnmnnnnnmnnnnnnnnnnnnnnnnnnn ar 3-2
CABINET LEVELING ….....uuvrcsassenterssrenrerererarenrenvesasenenreneeerereeane mener ны, 3-2
DOOR SEAL ..............mmeneeeernin ER eee 3-3
TOE-IN 8 TOE-OUT ADJUSTMENTS ............ ener e eee ee e nó 3-3
HINGE ADJUSTMENTS .......................e rencia De e re ene eee 3-3
DOOR ALIGNMENT eee reee eee e nece er erario 3-4
DOOR SWITCH wove sess sees rons esses ese testes esses esses esses 3-4
WATER/ICE DISPENSER FREEZER DOOR REMOVAL ...............e menea 3-4
FOUNTAIN ASSEMBLY - Manual Slide Control ............... ee eee reee 3-6
Ice and Water Fountain Bracket Assembly Removal ...................... ere enn reee. 3-6
Checking and Replacing the Crusher and Water/Cube Switch... 3-6
Checking and Replacing the Actuaring Switch ............... e... eee nene ener ies 3-7
Fountain He@ater ………….….………usersenirsenenennmsnntnnnnnnnmnnnnmnnnnnnnnnnnnnnnnnnnnnnnnn = 3-7
PC BOARD CHECKS........... eme eee eee ree ere ie 3-8
Fountain Door Delay ...........................e. erre eee eee rre ries 3-7
Excessive Door D@l@Y .………..ussserneenennmenmsnnnnnnnmnnmnnnnmnnnnnnnnnnnmnnnmnnnnnnnnnnÊnÊ 3-7
Short Door De@lBY ……..…..…….….…mrsesnnennnnnnnnnnmnnmnnnnmnnnnnnnmmnmnnnnnnnnnnnününäaän 3-7
FOUNTAIN ASSEMBLY - Electronic COntrOÏ ………………enennnnannnnnn*nnnmnenn 3-8
Ice and Water Fountain Bracket Removal ...................... ere een een nee 3-8
Fountain Bracket AssembDlY ….…….……….…eerensnenennmnnnmnnmnnnnnnnnnnnnnnnnnmnnnnnnnnn 3-9
Checking and Replacing the Actuator Switch ..............e..... remera 3-9
Electronic Control Board Troubleshooting ................ einer perenne ra raión 3-9
ICE CRUSHER BIN AND SHELF ASSEMBLY ...........2.....r0000emee e nio 3-10
ICE/CRUSHER BIN SHELF ENCLOSURE ASSEMBLY unie о, 3-11
16009103-01 CONTENTS У
©1999 Maytag Appliance Sales Company
SECTION 4. ICEMAKER ........................i eran er Tren eee ee eeseeeeeeeee eee 4-1
SERVICING .............e.. eee ea arenero eee ea ere racer rara re rerer erenaricer re erenirimer e rrerieries 4-1
TEST PROCEDURES .…........ecraceresserseneeneeerenrrnen came eerrenaee eee ee 4-1
SERVICE PROCEDURES ….….…….…….….…rrsseceereeremenmennennenenenns evene eee чево оннннны 4-2
ACCESSING THE CONTROL BOX ..................reememereeeo re e ere raro bere rearecrradimirereeeaees 4-2
MODULE COMPONENTS .................ee aer Te Tea NT ei re 4-3
WATER FILL ADJUSTMENT ...............-. ea aran e reee ini meo 4-4
WATER PROBLEMS .….……….……errmnenmennnmnmnmnmnnnnnnnnnnn im mie 4-5
TEMPERATURE PROBLEMS eee aire pene ene ene eee 4-5
THERMOSTAT .........00m0e ener Near eee eee eee eee es 4-5
INSTALLATION -.....emresenemmnnenan re ree Ne re ner nr me mr mr 4-6
HARNESS A AD 4-6
LEVELING ICEMAKER ..........eneemnn ere rn e De eee nro 4-7
REMOVING 6 REPLACING FILL CUP -.............. nee nr ria ener me e es 4-7
OTHER INFORMATION .................erinnnie ica e ee een rene eee ener rai 4-8
SECTION 5. TROUBLESHOOTING ..................-.r.eerceererr ear ee rece ries 5-1
SECTION 6. SPECIFICATIONS .....................rereeeiee ne errer e e eree 6-1
21 DISPENSER/NON DISPENSER .....................eeree reee er e arar A 6-2
23/25 DISPENSER/NON DISPENSER ......................eemeerree enererar rre rrorerecreareae ear rerirrrreiós 6-3
21 NON DISPENSER (MAYTAG) .......................eemieeereicee seee aria aa 6-4
23/25" DISPENSER/NON DISPENSER (MAY TAG) courier EEE eee enare treo sss r eaten arta 6-5
23/25" DISPENSER/NON DISPENSER (MAYTAG PREMIUM) ..…..…....ersrssrrnrrnrennenna nacre enr naues 6-6
SECTION 7. SCHEMATICS.................e....ee ie re eee enn e 7-1
1 1 9] 9 GREEN 7-1
16009103-01 CONTENTS vi
©1999 Maytag Appliances Sales Company
16009103-01
01999 Maytag Appliance Sales Company
CONTENTS
SECTION 1. GENERAL INFORMATION
INSTRUCTIONS - ELECTRICAL
REQUIREMENTS
It is the personal responsibility and obliga-
tion of the appliance owner to provide ad-
equate electrical service for this appliance.
Observe all electrical and local codes and
ordinaces.
A 120 volt 60 Hz, 15 ampere fused electri-
cal supply is required. An individual branch
(or separate circuit serving only this appli-
ance) is recommended.
Do not use an extension cord.
Before plugging in power cord, operating
or testing, follow grounding instructions
in Grounding Section.
Electrical Service
Grounding: 120 VOLTS, 60Hz Only
IMPORTANT SAFETY
PRECAUTIONS
WARNING: Personal Injury Hazard -
To prevent unnecessary risk of fire, elec-
trical shock or personal injury, all wiring
and grounding must be done in accor-
dance with National Electrical Code and
local codes and ordinances.
16008103
Warning - Electrical
ground is required on
this appliance!
Ч
Grounding Instructions
This appliance is equipped with a power
supply cord having a 3-prong grounding
plug. For your safety, this cord must be
plugged into a mating 3-prong type wall re-
ceptacle which is properly wired, grounded
and polarized.
if a mating wall receptacle is not available
contact a qualified electrician to have the
wall receptacle replaced. Do not use an AC
adapter plug. If there is any question, local
building officials or electrical utility should
be consulted.
Warning - Do not under
any circumstances re-
move the grounding
prong from the power
supply cord.
SECTION 1. GENERAL INFORMATION 1-1
© 1998 Maytag Corporation
FORCED AIR SYSTEMS
On all forced air models, an air circulating
fan draws air from across the evaporator and
directs it to the fresh food and freezer com-
partments. A carefully measured amount
of chilled air is directed into the fresh food
compartment through a baffle to maintain
the desired fresh food compartment tem-
perature. The greater part of chilled air is
directed into the freezer compartment to
maintain freezer temperature. Forced air
models use a fan cooled condenser. De-
pending on the model, the evaporator is
automatically defrosted every eight hours
of compressor run time. Defrosting is ac-
complished by a defrost heater activated by
a timer. The accumulated moisture is
drained into a defrost pan located in the
compressor area of the cabinet.
FRONT VIEW
VEN
16009103
FREEZER SIDE VIEW
"VY
-
=
+
—
.
AIR FLOW - FORCED AIR SYSTEMS
The airflow balance between the fresh food
and freezer compartments is an important
factor in maintaining proper compartment
temperatures in a forced air refrigeration
system. À baffle is used to regulate the
amount of chilled air directed into the fresh
food compartment. if a colder freezer com-
partment temperature is desired, the baffle
is adjusted so that less air is directed into
the fresh food compartment. This causes
the compressor to run longer since the ther-
mostat sensing element is located in the
fresh food compartment. Cold air is drawn
across the evaporator and into the fan. A
portion of the air is deflected into the fresh
food compartment where it absorbs heat
and returns to the fin and tube evaporator
N
y
La
SECTION 1. GENERAL INFORMATION 1-2
© 1998 Maytag Corporation
through the return opening in the divider.
However, most of the air moving across the
evaporator is blown through the freezer air
tunnel and circulated throughout the freezer
compartment. Itthen circulates back across
the fin and tube evaporator where it begins
another cycle.
CHECKING OPERATION
The following general information explains
several methods for checking operation of
the refrigeration system. This information
applies to all systems covered in this
manual. The correct operation of a refrig-
eration system is dependent upon the
proper function of each of the parts com-
prising the system.
If the system does not operate properly
(long run periods, warmer than normal tem-
peratures), the trouble may be caused by
one of the following conditions:
(1) - Restricted Capillary Tube
The opening of a capillary tube is about the
same diameter as the period at the end of
this sentence. Because of this, it is easy to
restrict the tube. Extra precautions should
be taken when any service procedure in-
volves moving or touching the capillary
tube. The slightest kink can cause a com-
plete tube restriction.
Restrictions of the capillary tube may be
caused by: (1) moisture freeze-up, (2) for-
eign particles lodged in the tube, or (3) a
bend or kink.
If the capillary tube is restricted, there will
be a noticeable lack of frost on all cooling
surfaces; the compressor may operate for
a short period of time and cycle on the
16009103
overload. Because some models can hold
the entire charge in the condenser, the com-
pressor may run continuously and a defi-
nite vacuum will be noticed in the low side.
When moisture freeze-up causes a restric-
tion, it usually occurs at the outlet end of
the capillary tube. Normally, frost buildup
can be detected in this area.
NOTE: When using a heat gun or hair
dryer, use low heat. Never use a torch.
At the discharge end of the capillary, apply
heat. If there is enough head pressure, and
if the restriction is caused by moisture
freeze-up, you will be able to hear a gurgling
noise as the heat releases the refrigerant
through the tubing.
It Is possible that this moisture will be ab-
sorbed by the drier and remedy the trouble.
However, if the freeze-up reoccurs, you
must replace the drier,
A kink in the capillary tube will reveal the
same symptom as a moisture freeze-up,
except for the accumulation of frost. Where
possible, check the capillary tube and
straighten any kinks to relieve the restric-
tions. Check the unit operation. If the con-
dition persists, replace the defective part.
If the freeze-up condition does not exist and
there is not a kink, you can assume that a
foreign particle is causing the restrictions.
The only remedy in this case is to replace
the restricted pant.
(2) - Partial Restriction In Low Side
Tubing
Bent tubing, foreign matter, or moisture in
the system may cause a partial restriction
in the low side tubing. This is usually indi-
cated by frost-free tubing between the re-
SECTION 1. GENERAL INFORMATION 1-3
© 1998 Maytag Corporation
striction and the capillary tube and by frost-
covered tubing between the restriction and
the suction line. The restriction acts like a
second capillary tube, increasing the pres-
sure ahead of it (warming) and decreasing
the pressure beyond it (cooling). To con-
firm the existence of a restriction in the low
side tubing, perform operational pressure
checks.
(3) - Slow Leak In System
On forced air models, long run time will be
noticed during the early stages of a leak. As
the refrigerant continues to escape, both
compartments will gradually warm up and
the compressor will run continuously. The
freezer will probably warm up first.
4) - Incorrect Refrigerant Charge
The sealed unit may have too much refrig-
erant (overcharged system) or too little re-
frigerant (undercharged system). The para-
graphs below will inform you on how to
recognize a systern with these defects.
An overcharged system may have a frost
back condition appearing on the suction
line. When the compressor stops, the frost
melts and drips on the floor. A heat ex-
changer separation will also cause this
symptom.
An undercharged system, depending on the
degree of undercharge, will operate with
temperatures above normal and the com-
pressor run time will be increased. The
greater the undercharge, the higher the tem-
perature will be and the longer the run time.
An undercharged system must be purged,
evacuated, and recharged with the proper
amount of refrigerant. Before recharging,
test for refrigerant leaks.
16009103
TOOLS NEEDED FOR R134A
SEALED SYSTEM REPAIR
The following list may help identify basic
refrigeration tools needed:
* ALL HOSES AND EQUIPMENT MUST
MEET STANDARDS FOR HANDLING R134A RE-
FRIGERANTS
* APPROVED AND CERTIFIED RECOVERY EQUIP-
MENT AND RECOVERY CYLINDER {see local sup-
plier for variety of equipment)
* MANIFOLD GAUGE SET / HOSES MUST HAVE
"LOW LOSS FITTINGS
(Robinair 41365)
* HEATED CHARGING CYLINDER WITH R134A
SCALE (Robinair 43134B)
* TEMPORARY ACCESS VALVES (2)
(Robinair 40288)
* 1/4" FLARE TEE - MFL X MFL X FFL
(Robinair 40399)
» 1/4"QUICK COUPLER VALVE
(Robinair 40380)
* PROCESS TUBE ADAPTER SET
(Robinair 12458)
Other tools required, but not necessarily
dedicated to R134A Service:
+ TUBING CUTTER
(Robinair 14987A)
* BRAZING TORCH
(Robinair 12587)
* SWAGGING TOOLS
(Robinair 14313)
* VOLT-WATT METER (MAYTAG CUSTOMER
SERVICE 20000019)
* LEAKDETECTION EQUIPMENT FOR CFC/HCFC
AND HFC OR EQUIVALENT
° PINCH-OFF TOOLS
(Robinair 12294 or 12396)
SECTION 1. GENERAL INFORMATION 1-4
O 1998 Maytag Corporation
NOTE: Robinair equipment is listed as a
reference only, equivalent substitutes may
be used. Additional tools may be required
for special situations.
LEAKDETECTOR - Leak detectors compat-
ible with R134A should be used. Due to the
possibility of contaminating the sealed sys-
tem with moisture, using soap bubbles can
cause problems, especially if drawn into a
low side leak. To minimize the possibility
of moisture entering the system, the use of
wet rags or towels to cool a brazed joint
should be avoided.
DRIERS/FILTERS - Any time a sealed sys-
tem repair is made, the drier must be re-
placed. The drier on R134A systems is dif-
ferent, using a new desiccant which pro-
vides system compatibility and proper
moisture absorption. Use of the old type
drier on new R134A systems would result
in a repeat sealed system failure. Part num-
ber 13900-1 is the drier which must be used
on R134A systems. This drier may also be
used on R12 systems and will supersede
the 13900 drier, but be sure that the older
13900 is NOT used on the R134A system.
Additionally, "unsoldering" a joint, rather
than the score and break method, is not ac-
ceptable due to the possibility of chemical
and moisture contamination. Always cut the
drier out of the system-never apply heat.
16009103
ADDITIONAL SYSTEM
INFORMATION
— CAUTION
Always wear eye protection and
protective clothing when handling
any refrigerants.
LIMIT TIME OF EXPOSURE TO THE
ATMOSPHERE - Whenever a sealed sys-
tem ts repaired, do not expose an open line
to the atmosphere for more than 15 min-
utes. Replacement components will come
sealed by either brazing (drier) or plugs
(compressor). Do not open the new drier
to the atmosphere until you are ready to
braze it into place. Before installing a new
compressor, pull a plug to be sure the unit
is still pressurized. If no pressure exists, do
not use the compressor. If pressure exists,
reinstall the plug to ensure non-contamina-
tion during the service procedure.
LOW SIDE LEAKS - In the event of a low
side leak, moisture has probably been
drawn into the system. The compressor
must be replaced in addition to the normal
repair. Also, a system flush must be made
before proceeding with the sweep charge
and final charge.
PLUGGED CAPILLARY TUBE - Moisture or
other contaminants in the R134A system can
cause the formation of gel-like or salt-type
deposits within the system. This causes
capillary tube restrictions which may not be
removed by the flush procedure detailed
later. If the restriction cannot be removed
from the capillary tube, the heat exchanger,
evaporator and compressor must be
replaced.
SECTION 1. GENERAL INFORMATION — 1-5
O 1998 Maytag Corporation
SYSTEM FLUSH - Flushing of the system
Is required whenever there has been a low
side leak, plugged capillary tube or com-
pressor replacement. This is a procedure
in which R134A refrigerant is flushed
through the system and into the recovery
system to remove moisture and non-
condensables which may have entered the
open system. The compressor must be
isolated during the flush procedure, in or-
der to prevent contaminants from being ab-
sorbed into the ester oil, resulting in a con-
taminated system.
The system flush procedure will be done
in two parts, First, the condenser, including
the yoder loop, will be isolated by means
of process tube adapters and flushed with
4 ounces of R134A. After the drier has been
replaced, the entire sealed system, minus
the compressor, will also be flushed with 4
ounces of the refrigerant. This second step
can take about 15 minutes in order to circu-
late the refrigerant through the condenser,
the drier, the capillary tube, the evaporator
and out the suction line into the recovery
equipment. During this 15 minutes, the old
compressor can be removed and the re-
placement set into place, mounted and pre-
pared electrically. The compressor is to-
tally installed except for the final brazing of
the suction and discharge lines.
16009103
© 1998 Maytag Corporation
SECTION 1. GENERAL INFORMATION
1-6
R134A SEALED SYSTEM SERVICE PROCEDURE
Any sealed system failure in the upper area indicated below requires the replacement of
the evaporator, heat exchanger, drier and compressor. Perform system flush, sweep and
add final charge according to procedure shown.
at рее ТЕ
——8ы——— lr
apo, Rb That rp
: Heat Exchanger | Capillary
a /
ÿ \
ï
Process
Leaks at joints 1 or 2 will require
the replacement of the compressor
and drier. Perform system flush,
sweep and final charge.
Suction Line
Connection at
the compressor ef
I
18140
Leaks or repairs to joints or components in the /ower area require repair or replace-
ment of the component and drier. Perform system sweep and add final charge accord-
ing to normal procedure.
16009103 SECTION 1. GENERAL INFORMATION — 1-7
© 1998 Maytag Corporation
REFRIGERATION SYSTEM
All refrigerators cool by removing heat
from the cabinet rather than pumping in cool
air. In a conventional refrigerator, liquid re-
frigerant enters the evaporator and vapor-
izes (boils) due to the low pressure, creat-
ing a very cold surface which removes heat
from inside the cabinet. This causes the re-
frigerant to boil (evaporate) into a vapor
state and be drawn into the compressor.
The compressor pressurizes the vapor and
pumps it into the condenser. The hot va-
por in the condenser gives off the heat into
the room. As the vapor cools, it condenses
back into a liquid and returns to the evapo-
rator to start the process over again. The
system continually soaks up the heat inside
the refrigerator and deposits the heat back
into the room,
* The compressor of the refrigeration sys-
tem serves two purposes: it ensures
movement of the refrigerant throughout
the system and it increases the pressure
and temperature of the vapor received
from the suction line and pumps the re-
frigerant into the discharge line. The
condenser receives this high tempera-
ture, high pressure refrigerant and al-
lows the heat to be released into the
cooler surroundings. This heat removal
‘condenses the refrigerant vapor into a
liquid.
* The yoder loop is the last pass of the
condenser routed around the cabinet of
the freezer to help prevent moisture for-
mation.
* The drier is installed at the end of the
condenser or yoder loop to capture
moisture which may be present in the
system.
16009103
The capillary tube meters the flow of
refrigerant and creates a pressure drop.
Size and length of the capillary is critical
to the efficiency of the system.
As the refrigerant leaves the capillary
tube and enters the larger tubing of the
evaporator, the sudden increase in tub-
Ing diameter, and the pumping action of
the compressor, form a low pressure
area. The temperature of the refriger-
ant drops rapidly as it changes to a mix-
ture of liquid and vapor. In the process
of passing through the evaporator, the
refrigerant absorbs heat from the stor-
age area and is gradually changed from
a liquid and vapor mixture (saturated
refrigerant) into a vapor.
The suction line returns this low pres-
sure vapor from the evaporator back to
the compressor, and the cycle starts
again.
Part of the capillary tube is soldered to
the suction line which forms a heat
exchanger. Heat from the capillary tube
15 thus transferred to the suction line to
superheat the refrigerant there and at the
same time this further cools the liquid
in the capillary tube. This cools the re-
frigerant before it enters the evaporator
and also heats the refrigerant before it
enters the compressor to ensure a va-
por state.
SECTION 1. GENERAL INFORMATION 1-8
© 1988 Maytag Corporation
REFRIGERATION SYSTEM
Ca o EEES
3 EVAPORATOR à
у, Lao". "be 2—e ECE I my y
AE FALL AT TO 9870.2 ov pC
|
SUCTION LINE -— — :
SPA A She RD Bani Senet rarer
я 4 — |
(HEAT EXCHANGER =I CAPILLARY
4 DRIER
Yr A = ZZ ZI aT, VTE Te ap Tan ie TI mE a EN
COMPR ESSOR
EE EIA Y
TY DER HEATER LOOP A
NE я Rs ee e
GAS - HIGH PRESSURE GAS + LIQUID-LOW PRESSURE
GAS-LOW PRESSURE
LIQUID-HIGH PRESSURE Eon
16009103 SECTION 1. GENERAL INFORMATION 1-9
© 1998 Maytag Corporation
DIAGNOSIS
Sealed system diagnosis of R134A refriger-
ant systems 1s to be performed identically
to that of R12 systems. Infact, as shown in
the following flow chart, the service proce-
dures are virtually the same, except for low
side leaks, plugged capillary tube or com-
pressor failure which results in a system
flush.
[REFRIGERATOR DIAGNOSIS |
| SEALED SYSTEM |
| IDENTIFY REFRIGERANT |
RECOVER RECOVER
REPAIR
LOW SIDE LEAK,
PLUGGED CAPILLARY
TUBE, COMPRESSOR
REPLACEMENT?
[ FINAL CHARGE |
NO |
FLUSH
| SWEEP |
| FINAL CHARGE |
* FLUSH INCLUDES COMPRESSOR
REPLACEMENT
Remember, before entering the sealed sys-
tem, all other systems must be tested and
properly repaired. These include the elec-
trical system, defrost system, control op-
eration, and air flow systems: evaporator
and condenser motors. Before "turning a
screwdriver", many checks can be made
simply by using your senses:
16009103
LISTEN:
* What is the customer complaint?
* Are the fans operating?
* Is the compressor operating?
LOOK:
* Are ¡ce cubes present?
* Is the light on/off when the switch is
operated?
* Are the controls set properly?
* Do door gaskets seal properly?
* Is there an ice buildup on the
evaporator cover?
* Are the return air ducts free of ice?
TOUCH:
* Is the evaporator cover warm?
* Is air felt exhausting from the kick
plate?
* Is air circulating in the freezer and
fresh food compartments?
* Is the quarter inch discharge line
from the compressor hot?
* Is the condenser warm?
SEALED SYSTEM DIAGNOSIS
Once it has been determined that the other
refrigerator systems are working properly,
a probable sealed system problem can be
confirmed through the use of a wattmeter
and checks of low and high side pressures.
Access valves are not to be left on a sealed
system after service. To measure low side
pressure, a temporary access valve can be
installed on the compressor process tube.
To remove the valve after repair, a pinch off
tool may be used to seal the tube while the
valve is removed and the hole brazed shut.
To check high side pressure, a temporary
access valve should be installed on the dis-
charge line. When the high side valve is in-
SECTION 1. GENERAL INFORMATION
© 1998 Maytag Corporation
1-10
stalled, the technician is committed to re-
placement of the drier and a sealed system
repair. Once again, this valve must be re-
moved upon completion of repair. Make
sure the gauges which are used to check the
operating pressures are accurately cali-
brated. When not connected to a system,
the gauge pointer should indicate zero pres-
sure. If necessary, turn the calibrating screw
until the pointer is at "0."
NOTE: The following situations are typi-
cal, however other factors such as gauge
placement, line voltage and ambient tem-
perature must also be considered.
The following symptoms use high and low
side pressures plus wattage measurements
to diagnose sealed system problems. Nor-
mal low side pressure will range from be-
low zero to about six pounds of pressure,
depending on several factors such as refrig-
erator model, ambient temperature, load
and customer usage. Normal high side
pressure is also dependent on external fac-
tors but will range in the 100 to 125 p.s.i.g.
range, Wattage and pressure figures will
vary based on the model and age of the re-
frigerator. Refer to the performance data
table(s) at the end of the manual.
Symptoms:
High Side - Near normal pressure
Low Side - Slightly lower pressure
Wattage - Lower than normal
Diagnosis - Low side restriction. The
evaporator, suction line or other low side
tubing is probably restricted (kinked or
blocked with a foreign article such as mois-
ture or contaminant). This condition is usu-
ally accompanied with a frost build up on
the low side of the restriction. High side
pressure will take longer to balance with the
low side pressure when the compressor is
stopped.
16009103
Symptoms:
High Side - Lowerthan normal
Low Side - Slightly lower than normal
Wattage - Lowerthan normal
Diagnosis - High side leak. Both high and
low side pressures will drop as more refrig-
erant escapes.
Symptoms:
High Side - Higher than normal
Low Side - Slightly lower than normal
Wattage - Higher than normal
Diagnosis - Low side leak. High side pres-
sure will continually increase since air is
being drawn into the system through the
leak and becomes trapped in the high side
tubing. The low side may show a slight in-
crease in pressure because of the air being
drawn in through the leak.
Symptoms:
High Side - Lower than normal
Low Side - lnavacuum
Wattage - Lower than normal
Diagnosis - Capillary tube restriction. High
side pressure will take much longer (or not
at all) to equalize with the low side pressure
when the compressor is stopped.
Symptoms:
High Side - Higher than normal
Low Side - Higher than normal
Wattage - Higher than normal
Diagnosis - Overcharged system. The
extent of the pressure increase depends on
the amount of overcharge and ambient tem-
perature. An overcharge may also cause the
suction line to be frosted during the run
cycle, resulting in water on the floor after
cycling off.
SECTION 1. GENERAL INFORMATION — 1-11
© 1998 Maytag Corporation
symptoms:
High Side - Lower than normal
Low Side - Higher than normal
Wattage - Lower than normal
Diagnosis - Inefficient compressor. Cool-
ing surfaces may be covered with a thin film
of frost, but the temperature will not de-
scend to cut off temperature of the control,
even with continuous running. Also, the
condenser will be noticeably cooler to the
touch than normal. Once the confirmation
that an inefficient compressor is made, the
compressor should be replaced.
Symptoms:
— High Side - Normal
Low Side - Normal to slightly
higher than normal -
suction line possibly
sweats
Wattage - Normal
Diagnosis - Separated capillary tube. The
capillary tube must be connected to the suc-
tion line to provide proper heat transfer.
Without this transfer, liquid refrigerant in the
capillary tube enters the evaporator at a
slightly higher temperature thereby lessen-
Ing the ability to remove heat from inside
the refrigerator. The customer complaint
would be long run time, slow ice produc-
tion, warmer fresh food temperature, in
general, poor overall performance. Another
symptom of a separated capillary tube
could be moisture on the floor behind the
refrigerator. The heat from the capillary tube
Is utilized by the suction line to ensure that
vapor rather than liquid refrigerant is re-
turned to the compressor. If liquid is
present in the suction line, frost or moisture
forms on the outside of the line and even-
tually drips to the floor.
16009103
LEAK TESTING
Once it has been determined through
proper diagnosis that a leak is present in the
sealed system, attempt to find the leak be-
fore opening the system if possible. To
check the high side for leaks, be sure that
the compressor is running. During run time
the high side pressure is greater. To increase
the pressure slightly, stop the condenser
fan blade or block the air flow through the
condenser. To check the low side for leaks,
stop the compressor. During off times, the
low side pressure will increase to equalize
with the high side. By warming the evapo-
rator, this pressure will increase. H too much
refrigerant has leaked out to create enough
pressure to locate the leak, add 4 ounces of
the proper refrigerant to the system and
proceed with the test procedure.
The presence of oil around a tubing joint
usually indicates a feak. Care must still be
taken to pinpoint the exact location. Re-
member that a leak detector compatible
with R134A refrigerant must be used. A
sealed system component, such as the
evaporator or yoder loop, should not be
condemned unless a non-repairable leak is
confirmed. This should be determined by
either locating the actual leak or by isolat-
ing the component from the rest of the sys-
tem and determining if it holds pressuriza-
tion or a vacuum - whichever method is
chosen.
SECTION 1. GENERAL INFORMATION
O 1998 Maytag Corporation
1-12
COMPONENTS
Drier
Whenever the sealed system is entered, the
drier must be replaced. For R134A refrig-
erant systems, use a 13900-1 drier. This
drier has the proper desiccant suitable for
the refrigerant. The drier is stamped with
an arrow which indicates the direction of re-
frigerant flow. The drier inlet has two lines -
one connects to the yoder loop and the DN —
other will be used as a process tube through NEÓN
which the system sweep and final charge |
will be made. The drier outlet will be con- EVAPORATOR CONDENSER
nected to the capillary tube. Care should \ LooP
be taken to ensure that the capillary is not
inserted too far into the drier to make con-
tact with its internal screen, yet in far enough
to prevent restricting the small diameter
capillary tube opening with the solder alloy.
À
EXCHANGER
V
WS ci
“+ COMPRESSOR
Condenser
=
TU
The condenser is a long folded tube which
receives the hot, high pressure vapor from
the compressor. While the most common CAPILLARY
problem is keeping the condenser clean TUBE
|
DISCHARGE
TUBE
from lint and dirt buildup which prevents DS
о CONDENSER\ -
the heat to the surroundings, it is possible —
that due to an unrepairable leak or a non-
proper airflow and the required transfer of
removable restriction, the condenser could
require replacement. As with any R134A
sealed system repair, the key to success is
the limiting of the time of atmospheric ex-
posure. Do not remove the plugs on the
condenser inlet and outlet tubes until the
new condenser is mounted in place and
made ready for brazing. The inlet side will
connect to the compressor discharge line
and the outlet to the yoder loop.
16009103 SECTION 1. GENERAL INFORMATION 1-13
© 1998 Maytag Corporation
Yoder Loop
The yoder loop is a non-replaceable component of the sealed system routed within the
walls of the cabinet. To diagnose the yoder loop, the tubing must be isolated from the
sealed system. This procedure is shown below. If the loop fails to hold the vacuum, a
heater repair assembly is to be installed and the loop bypassed by connecting the con-
denser outlet tube directly to the inlet of the drier.
4/
Yoder
Condenser ~~.
Loop
YODER LOOP DIAGNOSTIC TEST
1. Isolate yoder loop from remainder of sealed system.
2. Cap or seal one end of the loop {braze or use process adaptor and cap).
3. Attach process adaptor to open end of loop.
4. Attach compound gauge and vacuum pump to the loop.
>. Pull a vacuum and close valve to test for leak in the loop.
6. If unit holds a vacuum, no leak is indicated. Reconnect the yoder loop to the system, replace
the drier and recharge the system to specifications.
A VACUUM WILL BE MAINTAINED IF THE SYSTEM IS GOOD.
16009103 SECTION 1. GENERAL INFORMATION 1-14
© 1998 Maytag Corporation
Evaporator
The evaporator is a long aluminum tube
folded or coiled within the freezer compart-
ment. If a leak is present in the evaporator,
it 1s not repairable and must be replaced.
On R134A systems, whenever the evapo-
rator is replaced, the heat exchanger must
also be replaced as well as the compres-
sor. The replacement evaporator will come
with the heat exchanger attached. Leave the
caps in place on the opposite end of the heat
exchanger. Again, whenever the evapora-
tor and heat exchanger are replaced on
R134A units, the compressor must also be
replaced and the sealed system flushed. Do
not connect the suction line to the replace-
ment compressor until the system has been
flushed (see System Flush Procedure).
After mounting the evaporator in place, con-
nect the capillary tube of the heat exchanger
to the replacement drier.
Heat Exchanger
The heat exchanger is composed of the cap-
illary tube and suction line soldered to-
gether. The heat exchanger should be re-
placed if there is a non-repairable leak,
plugged capillary, more than 3 inches have
been removed from the capillary or the cap-
illary tube separates from the suction line.
It the heat exchanger is replaced, the evapo-
rator must also be replaced as well as the
compressor.
16009103
Compressor
The compressor is the "heart" of the refrig-
erator, consisting of an electrical motor and
a "pump" sealed inside a steel case. The
compressor used on R134A refrigerant sys-
tems is virtually the same in external ap-
pearance as the compressor used with R12
refrigerants. However, due to changes in
lubricants and other internal differences, the
compressors are not to be interchanged,
otherwise system failure will result. Diag-
nostic procedures will be the same as with
the R12 refrigerant systems, except that the
high side pressure will be slightly higher and
the low side pressure will be slightly lower.
It a new compressor is to be installed, pull
one of the plugs to ensure that it is prop-
erly pressurized. If no pressure is observed,
do not use the compressor. If unit is pres-
surized, reinstall the plug and keep the com-
pressor sealed until itis installed and ready
for solder connections. Whenever the com-
pressor Is replaced on a R134A refrigera-
tor, the sealed system must be flushed {see
System Flush Procedure).
SYSTEM FLUSH
Before accessing the sealed system, it is
necessary to determine that the problem
is actually a sealed system problem by
utilizing a wattmeter, thermometer, visual
and touch indicators, Once it has been
determined that the problem is in the
sealed system, and diagnosis indicates a
low side leak, plugged capillary tube, or a
defective compressor, in addition to the
normal repair, the system must be flushed
and the compressor must be replaced.
SECTION 1. GENERAL INFORMATION
© 1998 Maytag Corporation
1-15
SEALED SYSTEM REPAIR
SUMMARY
A. Recover the refrigerant in the
system, if any.
B. Repair the low side leak or replace
the evaporator and heat exchanger,
whichever applies. If the complete
low side is replaced, do not braze
the suction line to the replacement
compressor until the completion of
Step 3 of System Flush Procedure.
C. Proceed with the following flush
procedure which includes the
compressor replacement.
D. After flushing procedure is com-
pleted, continue with the normal
sweep and final charging procedure.
SYSTEM FLUSH PROCEDURE
1. Isolate and flush the Condenser
Score and break the discharge line at a con-
venient location to which the replacement
compressor tubing can be connected later.
Attach a process tube adapter to the con-
denser side of this break. Connect a quick
coupler hand valve to the process adapter,
Connect the hose from the charging cylin-
der to this valve (refer to figure 1). This con-
nection will remain in place throughout the
flush procedure in Step 3.
NOTE: Due to the extra flushing and
sweep charge procedures, about 12
ounces of R134A refrigerant should be
added to the original charge specified on
the model/serial plate and loaded into the
charging cylinder initially.
16009103
Next, score and break the tube at the yoder
loop to the input side of the drier. Attach a
process tube adapter to the condenser side
of this break. Connect a quick coupler hand
valve to this process adapter, Connect the
hose from the recovery equipment to this
valve (figure 1). Use the heater on the charg-
ing cylinder to ensure the cylinder pressure
to be approximately 30 pounds above
room ambient temperature. For example,
if room temperature is 70 degrees, cylin-
der pressure should be 100 p.s.i.g. Start the
recovery system and open the valve at the
process adapter attached to yoder loop.
Open the valve from the charging cylinder
and allow 4 ounces of R134A to flow through
the condenser and into the recovery SYS-
tem. This process should take about two
minutes. Keep the process adapters and
hoses attached at this time.
SECTION 1. GENERAL INFORMATION
© 1998 Maytag Corporation
1-16
T0 YODER LOOP LLL: ¿fa TO FVAPORATOR
£ A i
CONDENSER
TO RECOVERY
«i
INTO DISCHARGE LINE
FIGURE 1
Flush into discharge line, through hi-side
and out the yoder loop at drier inlet.
2. Replace the Drier
Score and break either one of the two inlet
lines on the new drier (the other line will
remain sealed until the sweep charge, at
which time it will be the process tube). Pre-
pare the drier outlet side for connection to
the capillary tube. The capillary tube should
be inserted about 3/4 inch into the drier to
prevent solder alloy from plugging the cap-
illary tube or the capillary tube extending
too far into the drier and contacting the
screen. To facilitate the installation, place a
slight bend in the capillary tube about 3/4
inch from the end and insert into the drier.
Remove the process tube adapter from the
yoder outlet and prepare the tube for con-
nection to the drier inlet. The drier inlet joint
will be the only copper-to-steel connection
which will require the silver solder and flux.
To help prevent flux from entering the sys-
tem, first insert the line from the yoder loop
into the drier inlet, then apply the flux. Braze
both the inlet and the outlet joints of the re-
placement drier.
16009103
TO YODER LOOP = om JE TO EVAPDRATOR
CONDENSER
JTF
TO RECOVERY
SYSTEM
INTO DISCHARGE LINE
FIGURE 2
Flush the entire system (less compressor)
out the suction line.
3. Isolate and flush the remainder of
the system
Score and break the suction line close
enough to the old compressor to be able
to reconnect it to the replacement com-
pressor later. Attach a process tube adapter
to the evaporator side of the suction line.
Connect the hand valve and hose from the
recovery equipment to this adapter (figure
2). Be certain that the pressure in the charg-
ing cylinder is about 30 p.s.i.g. above ambi-
ent temperature. Start the recovery unit and
open the hand valve to the suction line.
Release four (4) ounces of R134a from the
charging cylinder into the system. It will take
about 15 minutes for the refrigerant to pass
through the condenser, yoder loop, drier,
capillary tube, evaporator, suction line and
into the recovery system. This 15 minutes
time can be utilized to remove the old com-
pressor (figure 3) and prepare the new com-
pressor by mounting into place and wiring
electrically. Remember to leave the plugs
in place until brazing (refer to
figure 4).
SECTION 1. GENERAL INFORMATION
© 1998 Maytag Corporation
1-17
A
A
TO YODER LOGP A. 174270 EVAPORATOR
С
E
TO YODER LOOP A
CONDENSER
a [E]
5 =
+ EE
AED AR EEE
CONDENSER
TO RECOVERY TO RECGVERY
pie SYSTEM
INTO DISCHARGE UNE
INTO DISCHARGE LINE
FIGURE 3 FIGURE 4
During final flush, remove old compressor, and install replacement compressor leave
plugs in place until brazing.
4. Complete compressor replacement
Close valves to the recovery system. Re- Connect and braze suction and discharge
move process tube adapters from both the lines to the replacement compressor (fig-
suction and discharge lines. ure 5). You are now ready to add the tem-
porary piercing valve to the drier process
line and proceed with the sweep and final
charging of the system.
— CAUTION
In order to prevent sealed system
contamination, the time of atmo- meo
spheric exposure must be limited to |
15 minutes. do not pull the plugs |
from the new compressor until you CONDENSER
are ready to make the connections.
FIGURE 5
Flush complete - ready for sweep charge.
16009103 SECTION 1. GENERAL INFORMATION 1-18
© 1998 Maytag Corporation
SWEEP AND FINAL CHARGE
The sweep charge is a method of purging
the sealed system of moisture, air and po-
tential contaminants. Also during this pro-
cedure, the system may be checked for
leaks before the final charge. If this proce-
dure is followed as outlined, it will allow for
the capture of 30-95 percent of the available
refrigerant, thereby ensuring that the sys-
tem will operate as designed.
The sweep procedure for R134a refrigerant
systems is made after the system has been
repaired and/or tlushed. Three (3) ounces
of refrigerant R134a is added to the system,
circulated by the compressor for 5 minutes
and recovered. Since a new drier - part
#13900-1 has already been installed, a high
side process tube is available. Install a tem-
porary access valve to this process tube
close enough to the end of the tube so that
the tube can be pinched closed behind the
valve and the opening sealed shut after the
valve is removed. Remember, no access
valve is to be left on the sealed system. Con-
nect a 1/4 inch flare tee to the access valve,
Connect a quick coupler hand valve to each
side of the tee. To one hand valve, connect
the hose from the charging cylinder. To the
other valve, connect the hose to the recov-
ery system.
The following steps take you through the
sweep and final charge.
*Step 1. Set up of valves: temporary access valve (C) piercing drier process tube,
connected to flare tee, hand valve (A) to charging cylinder, hand valve (B) to recovery
system,
___ ACCESS VALVE, ~~
(YY) NA A
CHARGING A т | y RECOVERY
CYLINDER E x 8 SYSTEM
Lo LL EZ sI ME
i
E. E
*Step 2. With liquid refrigerant present to valve A, valve B closed and valve C open
(C will remain open throughout sweep procedure), open valve A to allow three (3)
ounces of refrigerant into the system. Close valve A, Check low side for leaks. After
system has equalized (about 3 to 5 minutes), start system compressor, check for high
side leaks and allow refrigerant to circulate in the system about 5 minutes.
C Da y VALVE DN
TO 3 ; C NR TO
CHARGING A Con > RECOVERY
CYLINDER I pn SYSTEM
Tf FSS 107
16009103 SECTION 1. GENERAL INFORMATION 1-19
© 1998 Maytag Corporation
*Step 3. Leave valve A closed and valve C open. System compressor still running,
open valve B to allow refrigerant to flow into the recovery system. After vacuum
has been held, turn off system compressor.
ACCESS VALVE — и
; E TE a ——
CHARGING A 3 1 1 à B RECOVERY
LL SYSTEM
CYLINDER
Step 4. Close valve B. Liquid refrigerant still present to valve A and charging cylinder
pressure is 30 p.s.i.g. above room ambient. Open valve A to slowly allow the proper
refrigerant charge into the system. Close valve A. If needed, valve C can be closed
and valves A and B opened to recover refrigerant in the hoses and charging cylinder.
TO
CHARGING
CYLINDER
Step 5. Use pinch-off tool to seal the process tube between the drier and the access
valve. Remove the access valve and braze the opening. After the required five minute
equalization time, start the system compressor.
16009103 SECTION 1. GENERAL INFORMATION — 1-20
© 1998 Maytag Corporation
SECTION 2. COMPONENTS
COMPRESSOR REPLACEMENT
The following general information explains
how to successfully replace compressors
for any model covered in this manual.
All replacement compressors are charged
with the correct amount of oil and a holding
charge of dry nitrogen.
The holding charge is your assurance that
the compressor is dry and ready to install.
If you receive a replacement compressor
that shows no evidence of holding charge
when you center the lines or remove the
plugs, return it.
NOTE: A new drier must be installed each
time any component of the system is
opened or replaced.
|;
REPLACING THE COMPRESSOR
1. Disconnect the unit from the power
source.
2. Locate defective compressor and
evacuate the sealed system. (See
Sweep Charging and Refrigerant
Recovery.)
3. Clean and cut the refrigerant lines as
close as possible to the compressor
stubs, leaving enough length to install
the replacement compressor.
16009103-01
Cut Cut
Here Here
L i
| | |
= Cut —
po Here 1
SECTION 2. COMPONENTS 2-1
O 1999 Maytag Appliances Sales Company
4. Disconnect lead wires from compres-
sor terminals.
5. Remove the retaining clips from the
compressor mounts. Remove defec-
tive compressor from cabinet and in-
stall rubber grommets on replacement
compressor.
6. Clean the compressor stubs with an
abrasive cloth such as grit cloth No. 23.
Do not open the compressor stubs.
7. Install the replacement compressor us-
ing the mounting clips previously re-
moved.
8. Connect the compressor leads.
9. Solder a short piece of tubing to the pro-
cess tube (approximately 6 inches
long). Connect the refrigerant tubing
to the compressor stubs using silfos on
copper to copper joints and silver sol-
der and flux on steel to copper joints.
Locate and remove old drier. Install new
drier. The new driver is installed in the fol-
lowing manner:
a. Carefully bend the old drier and tubing
away from electrical parts.
b. Use steel wool or fine emery paper to
clean the capillary tube 3 inches from
the original joint. Also, clean the input
tubing to the drier of 3 inches from the
original joint.
c. Use steel wool or fine emery paper to
clean both ends of the new drier. Use a
knife or file to score the capillary tube 1
inch from the original joint. Use your
finger to break the connection.
а. Make an offset 1/2" from the end of the
cap tube to prevent it from penetrating
too far into the drier.
16009103-01
10.
11.
12.
Cut the inlet tube of the replacement
drier and use pliers to snap off the
scored end.
Install the new drier using silver solder
with the proper flux at the Yoder tube
to drier joint. Use silfos at the drier to
capillary tube joint.
Evacuate, recharge and leak test the
system.
Test run the unit to check operation
Replace the machine compartment
cover.
CONDENSER REPLACEMENT
The following general information explains
how to successfully replace the condenser
for any model covered in this manual.
SECTION 2. COMPONENTS 2-2
© 1999 Maytag Appliance Sales Company
Disconnect the unit from the power
source.
Remove all loose items from the refrig-
erator interior.
Working at the back of the cabinet, re-
move the cover from the machine com-
partment. Itis necessary to reinstall this
cover after the job is completed.
Using a sponge, remove any drain wa-
ter from the defrost pan.
With assistance, tilt the cabinet back and
remove the front condenser mounting
screw.
Mounting
Screw
With assistance, return cabinet to up-
right position. Remove the back con-
denser mounting screw.
Disconnect the fan motor wire lead
connector.
8. Use steel wool or fine emery paper
to clean both the inlet and outlet end of
the new condenser.
16009103-01
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
Evacuate the sealed system. (See
Sweep Charging and Refrigerant Re-
covery.)
Clean and then cut the inlet and the out-
let tube of the old condenser.
Remove the condenser assembly from
the compressor mounting pan and
place it on a workable surface.
Remove the shroud/condenser screws
which secure the fan motor shroud to
the condenser.
Transfer all clips to the replacement con-
denser. Make sure the condenser tub-
ing goes through the rubber sieeve on
the fan motor shroud. Install the mount-
INg screws.
Set the replacement condenser on the
compressor mounting pan and install
both front and rear condenser mount-
Ing screws.
Clean then connect the discharge line
to the inner tubing. Clean again and
connect the Yoder loop to the outer
tubing of the condenser.
Solder all joints. Silver solder and
proper flux should be used on copper
to steel or steel to steel joints. Excess
flux should be wiped off all tubing.
Remove and replace the old drier. Do
not allow more than 1/2" of the cap
tube to penetrate the drier.
Install the new drier using silver solder
with the proper flux.
Visually check the joints for leaks.
Connect the fan motor wire connector.
Evacuate and recharge the system.
SECTION 2. COMPONENTS 2-3
© 1999 Maytag Appliances Sales Company
22. Test for leaks.
23. Install the machine compartment cover.
24. Test run the refrigerator to make sure
It is operating properly.
ELECTRICAL SYSTEM
* The wiring diagram is located in the con-
trol housing area.
* Allelectrical components are grounded
to the cabinet.
* The green/yellow center conductor in
the power cord is attached to the cabi-
net to provide a ground circuit when the
cord is plugged into a properly
grounded outlet.
* After replacing an electrical component,
always reconnect the ground wire.
+ The electrical outlet should be checked
to make sure it is properly wired.
Check the outlet with a circuit tester,
COMPRESSOR TESTER
SWITCH: A
Off, Run, Start 17 7
4 70°
к» LE Start
Capacitor
16009103-01
Testing the Compressor Direct
Testing the compressor with no other wir-
ing in the circuit is called the direct test
method. Remove all electrical components
from the compressor in order to perform
this test. It is recommended that a com-
pressor tester as illustrated be used to
make this test.
Common
The tester leads are marked RUN, START,
and COMMON. Connect the common lead
to the common terminal of the compres-
sor, the start lead to the start terminal and
the run lead to the run terminal. The com-
pressor terminal arrangements are illus-
trated above. The other two leads are for a
start capacitor {if used). When not in use,
attach the two leads together and place the
toggle switch in the OFF position. There
should not be any bare leads touching the
cabinet. Plug in the tester and flip the switch
to the start position. When the compres-
sor starts, release the switch to the run po-
sition. lf the compressor is operative, it will
continue operating on the run windings. If
the compressor fails to run, the compres-
sor is defective and must be replaced.
SECTION 2. COMPONENTS 2-4
© 1999 Maytag Appliance Sales Company
Overload Protector
The overload protector prevents the com-
pressor from burning out its electrical wind-
Ings in the event the compressor becomes
overheated or draws too much current. The
overload trips, opening the circuit to the
compressor. If it does this repeatedly, the
compressor is said to be cycling on the
overload.
Cycling on the overload may be caused by:
1. Insufficient air circulation around the
compressor and condenser.
2. Pull-down on the compressor, caused
by a large quantity of warm food
placed in the refrigerator.
3. Compressor stalling due to lack of pres-
sure unloading.
4. Low line voltage.
5. Defective start relay.
6. Defective winding inthe compressor or
shorted windings.
Testing the Overload Protector
Disconnect the unit from the power
source,
To test the overload protector, remove the
compressor terminal cover. Examine the
bottom of the overload for signs of arcing.
if signs of arcing are present, either check
for continuity or connect a jumper wire
across the terminals. If using a jumper wire,
plug in the line cord and set the tempera-
ture control to a cold setting. If the com-
16009103-01
pressor starts, the over load is defective
and must be replaced. If the compressor
fails to start, check for a defective start re-
lay or compressor.
1. Remove the PTC and overload from the
compressor.
2. Connect one ohmmeter probe to the
compressor shell. Make sure the probe
makes good contact with bare metal.
One at a time, connect the other ohm-
meter probe to each of the three com-
pressor terminals.
3. If the meter shows no continuity to
ground, install PTC and overload pro-
tector to the compressor's terminals. If
the meter indicates the compressor ter-
minals are grounded, replace the
compressor.
4. Attach a jumper wire across the over-
load terminals.
5. Make sure the jumper wire does not
short to ground.
6. Reconnect the unit to power source. If
the compressor starts, the overload
protector is defective and must be re-
placed.
SECTION 2. COMPONENTS 2-5
© 1999 Maytag Appliances Sales Company
PTC STARTING DEVICE AND RUN
CAPACITOR
Run
Capacitor
L
The PTC solid state starting device is a push-
on component mounted to the start and run
terminals of the compressor. This device
Is connected in parallel with the run capaci-
tor and is in series with the compressor start
windings. This will produce a short circuit
across the run capacitor during the com-
pressor starting sequence and full current
is applied to the start windings as well as
the main winding. Since the PTC device is
temperature sensitive, a variance in its tem-
perature causes a change in its resistance.
When current is first applied to the com-
pressor, the PTC device's low resistance
shorts out the run capacitor; thus produc-
ing adequate motor starting torque.
As the compressor motor approaches run-
ning speed, the current through the PTC
device causes the temperature and resis-
tance of the PTC device to increase to where
it appears to be an open circuit. The com-
pressor continues to operate on the run
winding in parallel with the series combina-
tion of the run capacitor and start winding.
16009103-01
Over-
load
Pro-
tector
Checking the PTC Device
1. Disconnect the unit from the power
source.
2. Discharge the capacitor. NOTE: See
“Testing The Capacitor" on page 2-7.
3. Remove the wires from the PTC de-
vice terminals.
4. Allow the PTC to cool to room
temperature.
5. Remove the PTC device.
6. Using an ohmmeter, check the resis-
tance between the PTC device termi-
nals. The ohmmeter should register
between 3 and 20 ohms.
An extreme variance between 3 and 20
ohms indicates a defective PTC device
which must be replaced.
NOTE: We discourage using a voltmeter
to check performance of the PTC device
because test results are influenced by
several factors, such as its dependence
on line voltage to the compressor, the re-
sponse characteristic of the voltmeter
and the PTC device temperature at the
time the compressor is energized.
SECTION 2. COMPONENTS 2-6
© 1999 Maytag Appliance Sales Company
PTC Device Replacement
1. Disconnect the unit from the power
source,
2. Disconnect the PTC from the compres-
sor terminals,
3. Remove the lead wires from the PTC
terminals.
4. Replace the PTC and reconnect the
wires to the proper terminals.
RUN CAPACITOR
The run capacitor is mounted adjacent to
the compressor. Itis electrically connected
to the compressor circuit to provide the
required phase difference between the start
and run windings for running the
compressor.
Capacitor Failures May Be Caused By:
(1) A Short Circuit - Will cause the start
windings to be energized continuously
in the start mode. The compressor
could start, but the overload protector
will trip, and eventually trip continu-
ously.
(2) An Open Circuit - Should, under normal
conditions, allow the compressor to
start. Under a heavy running load, how-
ever, the compressor will trip on the
overload.
(3) A Capacitor Low in Capacitance - A
capacitor may lose capacitance by a loss
of its electrolytic properties. The com-
pressor would run under a light load,
but would trip on the overload in high
ambient conditions.
16009103-01
Testing the Capacitor
Warning - Discharge a ca-
pacitor before handling.
Short across its terminalis,
using a resistor with a
minimum resistance of
1,000 Ohms.
We recommend using a capacitor analyzer
when testing. A solid state unit that mea-
sures capacitance and power of any capaci-
tor, and has an automatic means of discharg-
ing the capacitor through resistance is pre-
ferred.
Alternate Method Using
Ohmmeter
1. Disconnect the unit from the power
source.
2. Disconnect the capacitor lead wires.
3. Short across the terminals using a re-
sistor with a minimum resistance of
1,000 ohms. This ensures that no
charge remains to damage the ohmme-
ter.
4. Set the ohmmeter selector switch to
the 10,000 ohm scale (R x 10K).
5. Connect the ohmmeter leads to the ca-
pacitor terminals and observe the
meter point lower end.
SECTION 2. COMPONENTS 2-7
© 1999 Maytag Appliances Sales Company
a. If the pointer deflects to the lower
end and remains there, the capacit-
or is shorted and must be replaced.
b. HW there is no deflection of the
pointer, the capacitor is open and
must be replaced.
c. If the pointer deflects toward the
high end of the scale and then
slowly returns to the low end,
the capacitor is good.
TEMPERATURE CONTROL
= м-в
COLDEST - §
AL] OW 24 HOURS
BETWEEN ADJUSTMENTS
The refrigerator has two temperature
controls;
1. Fresh Food Compartment - The fresh
food temperature control senses the
temperature of its compartment and
governs the compressor operation
accordingly.
2. Freezer Compartment - The freezer
compartment control adjusts the
damper door which regulates the
amount of air allowed to enter the fresh
food compartment.
Turning the freezer temperature control to
the coldest settings reduces the flow of
chilled air to the fresh food compartment.
The fresh food temperature control uses a
sensing element that must be cooled suffi-
ciently before stopping the compressor.
The reduced air flow causes longer com-
pressor run time and colder freezer tem-
peratures, while maintaining the required
fresh food compartment temperatures.
16009103-01
Conversely, by turning the freezer tempera-
ture control to the warmest setting, you in-
crease the flow of air into the fresh food
compartment and decrease the flow to the
freezer. This cools the fresh food tempera-
ture control sensing element faster, result-
ing in shorter compressor run times and
warmer freezer compartment tempera-
tures. The fresh food compartment will
stay near the recommended fresh food tem-
perature, unless the freezer temperature is
turned to an extreme temperature. The dif-
ferential between cut-in/cut-out tempera-
ture will vary approximately 10%,
Checking Operating Temperatures
The temperature control feeler tube is lo-
cated in the fresh food compartment. The
feeler tube is wrapped around a thermal
mass located in the back left corner of the
control housing. A small amount of air
passes over the thermal mass which gives
a consistent run time during ambient
changes.
SECTION 2. COMPONENTS 2-8
© 1999 Maytag Appliance Sales Company
Thermocouple
Lead
Rear of
Cabinet
capillary tube
Tape thermocouple lead at the 12:00
position on the last wrap of the
Thermal Mass Retainer
Front of
Cabinet
To check the cut-in/cut-out temperatures,
attach the bulb of thermistor temperature
tester to the control feeler tube and set con-
trols at midposition.
Allow the compressor to complete two or
three complete cycles. If the temperature
readings are not within two degrees of the
requirements the control is defective and
must be replaced. Do not attempt to
recalibrate,
A defective control may cause the compres-
sor to run continuously or not at all. If ei-
ther of these conditions exist, check as
follows:
* Compressor Won't Run
1. Remove the control enough to expose
its terminals.
2. Short across the control terminals. If
the compressor starts, install a new
control. If the compressor fails to start,
check the defrost timer, compressor
receptacle, and unit wiring for defects.
16009103-01
* Compressor Runs Continuously
1. Turnthe control knob to OFF. If the com-
pressor continues to run, proceed to
step 2. If the compressor stops, check
that the feeder tube is positioned prop-
erly and that the air flow through the con-
trol housing is not restricted. If the
feeler tube is positioned properly and
there is no air restriction, check the con-
trol operating temperatures.
2. Remove the control far enough to re-
move one of the wires from its termi-
nal. ifthe compressor continues to run,
there is a short in the unit wiring.
Temperature Control Replacement
1. Disconnect the unit from the power
source.
2. Open the fresh food door and remove
any loose items on the top shelf.
3. Remove the light shield cover by pull-
ing down on the back corners of the
cover, and sliding the cover forward.
SECTION 2. COMPONENTS 2-9
© 1999 Maytag Appliances Sales Company
4. Remove the control housing mounting
screw at the back of the control hous-
ing. Slide the control housing to the
right and lower from control housing
supports.
5. Disconnect the temperature control
housing electrical quick disconnect.
6. Remove the temperature control hous-
ing from the refrigerator and place ona
flat work surface.
7. Remove the control knob by pulling it
away from the temperature control.
8. Remove the electrical and ground leads
from the temperature control terminals.
9. Remove the control by pushing on the
tab with right thumb to release the lock.
With the left hand, rotate the control out
of its locking tabs.
10. To remove the thermal mass, insert a
flat bladed screwdriver between the
thermal mass and the control housing
area. Turn the screwdriver to release
the mass from its locking tab.
11. Install the replacement control in the re-
verse order of removal,
16009103-01
AUTO DAMPER CONTROL
MODELS
The Auto Damper model refrigerator has
two controls and both have capillary sens-
ing. The Auto Damper controls the fresh
food temperature and the Freezer Tempera-
ture Control guides the freezer temperature.
The fresh food compartment temperature
Is maintained by a damper assembly lo-
cated at the back of the temperature con-
trol housing. Changes in air temperature
cause the damper door to open and close,
A control rod and gear connect the fresh
food control knob to the damper control.
Turning the fresh food contro! knob to the
COLDEST position increases the flow of
freezer air into the fresh food section. The
freezer compartment temperature control
warms at a faster rate and cools at a slower
rate, increasing the compressor run time
necessary to maintain a satisfied freezer
temperature control.
Turning the fresh food control knob to a
WARMER setting decreases the flow of
chilled air into the fresh food section. The
freezer compartment temperature control
warms at a slower rate and cools at a faster
rate, decreasing the compressor run time
necessary to maintain a satisfied freezer
temperature control.
SECTION 2. COMPONENTS 2-10
© 1999 Maytag Appliance Sales Company
Checking the Auto Damper
1.
10.
11.
12.
Disconnect the unit from the power
source,
Open the fresh food door and remove
any items on the top shelf.
Set the fresh food control to the cold-
est position.
Remove the light shield cover by pull-
ing down on the back corners of the
cover and sliding the cover forward,
Remove the fascia/radiant shield
mounting screws. Remove the control
housing mounting screw at the back,
bottom center of the contro! housing.
Slide the contro! housing to the right.
Lower the control housing.
Disconnect the temperature control
housing electric quick disconnect.
Remove the temperature contro! hous-
Ing from the refrigerator and place ona
flat work surface.
Remove the auto damper control rod
retainer, control rod and the slide con-
trol gear from the auto damper control.
Turnthe control housing over.
Remove the two auto damper mount-
ing screws, then remove the auto
damper from the control housing.
Mark the auto damper rod approxi-
mately 1/4" away from the housing.
Uncoil the auto damper capillary tube
approximately four inches.
16009103-01
13.
14,
15.
Submerge into a glass of ice (no water).
Watch for door to move to the closed
position.
Remove from ice and warm capillary
tube (use your hand}. Watch door for
opposite reaction.
If no movement is detected, replace
the control.
Auto Damper Control Replacement
1.
Complete steps 1 through 10, checking
auto damper.
Reinstall new auto damper.
Reinstall control housing in reverse or-
der of removal.
SECTION 2. COMPONENTS
© 1999 Maytag Appliances Sales Company
2-11
AUTO DAMPER CONTROL - Exploded View
CONTROL ROD
EMD CAPS
16009103-01
SECTION 2. COMPONENTS 2-12
© 1999 Maytag Appliance Sales Company
DEFROST TIMER
The freezer evaporator defrosting system
Is actuated by an electric timer. The timer
Is mounted in the control housing located
in the fresh food compartment.
Defrost
Timer
WHT
N
{+ [
The timer control shaft is designed for
screwdriver advancement. When manually
setting the timer to initiate defrosting, turn
the control shaft clockwise until you estab-
lish the approximate location of the defrost
cycle. Then turn the shaft slowly, and stop
immediately when the first click is heard.
The schematic illustrates the timer circuits
In sequence.
To advance
defrost timer
um clockwise
VA
f NM
do
te
xl, /P
Defrost timer mounting screws
160091 03-01
LINE (BLUE)
| DEFROST
1 HEATER _
vel Em I
LINE TIMER DEFROST
(WHITE) MOTOR | 4 THERMOSTAT
© >? [TO COMPRESSOR
(ORN)
FIRST CLICK-DEFROST OPERATION
LINE (BLUE)
DEFROST
HEATER
е 3 2 P—
|
LINE FUMER YE DEFROST
(WHITE) | (MOTOR 1 а | THERMOSTAT
+ [TO COMPRESSOR
(ORN)
SECOND CLICK-NORMAL OPERATION
1st Click - The timer turns off the compres-
sor and freezer fan circuit for approximately
23 minutes, and it energizes the defrost
heater. Once the temperature of the defrost
termination thermostat reaches the cut-out
point, the termination thermostat will open
the circuit to the radiant heater. However,
the compressor circuit remains open for the
duration of the defrost interval.
2nd Click - The timer switches off the de-
frost circuit and starts the compressor,
freezer fan, and the condenser fan motor.
The compressor and fan motors are now
governed by the temperature control for a
period of approximately 8 hours of the com-
pressor run time, after which a new defrost
cycle begins.
SECTION 2. COMPONENTS 2-13
© 1999 Mayiag Appliances Sales Company
#3 Blue
Checking the Defrost Timer
Disconnect all wires from the timer and at-
tach ohmmeter probes to the terminals
specified in the accompanying chart. If no
continuity is indicated, the timer is defec-
tive.
To Test Turn Timer Check Between
Knob To Terminals
Timer Motor | Leave asis 183 *
Circuit
Defrost 1st Click 182
Circuit
Compressor | 2nd Click 164
Circuit
*See Maytag Monthly Bulletin, June 1993 volume:03 Issue 40
Page 1 Low watt Timers (This test works on all low watt timers.)
Timer Replacement
1. Disconnect the unit from the power
source.
2. Open the fresh food door and remove
any items on the top shelf.
3. Remove the light shield cover by pull-
ing down on the back corners of the
cover and sliding the cover forward.
16009103-01
4. Remove the fascia/radiant shield
mounting screws. Remove the control
housing mounting screw at the back of
the control housing. Slide the control
housing to the right and lower it from
the control housing supports.
5. Disconnect the temperature control
housing electrical quick disconnects.
6. Remove the temperature control hous-
ing from the refrigerator and place on a
flat work surface.
7. Remove the two timer mounting
screws.
8. Disconnect the electrical connector
from the timer.
9. Install the replacement timer in reverse
order of removal.
ADAPTIVE DEFROST CONTROL
The adaptive defrost control assembly is a
microprocesser controlled defrost timer.
This new control allows defrost to occur
only when needed, compared to mechani-
cal timers which defrost at a preset interval
whether it is necessary or not. The new
control will continually adjust defrost inter-
vals based on the amount of time the de-
frost heater is energized. This allows the
defrost intervals to be adjusted closer to
the optimum defrost interval based on use,
thus saving energy.
SECTION 2. COMPONENTS
© 1999 Maytag Appliance Sales Company
2-14
Checking the Adaptive Defrost
Control
1. Disconnect the unit from the power
source,
2. Open the fresh food door and remove
any items on the top shelf.
3. Remove the light shield and the tem-
perature control housing (see steps 3
and 4 replacing the timer).
4. Connect the refrigerator to a wattme-
ter.
5. Make sure compressor is running (cold
control closed).
6. Using an insulated number 22 jumper
wire short between LI and Test; this will
put the refrigerator into a defrost for
approximately 23 minutes.
7. The watt meter should read between
500 to 600 watts depending on the
model.
Note: /f the temperature control is open
{unit not running and you jumper L1 and
Test) the unit will cycle through the test
mode in two seconds and there will be no
watt draw.
AAA A
LU dues AA
These models use a metal sheath heater to
remove accumulated frost from the freezer
evaporator and drain trough during a de-
frost cycle.
The defrost timer (models) energizes the
defrost heater every 8 hours of accumu-
lated compressor run time. When the tem-
perature in the thermostat area reaches ap-
proximately +43°F. the thermostat contacts
open the circuit to the defrost heater.
An ohmmeter check will determine if all
phases of the defrost cycle are functioning
properly. The defrost thermostat contacts
open at approximately +43*% F. and close at
approximately +15*% F
The defrost thermostat has a 240K ohm re-
sistor connected internally across the two
terminals, This resistor permits checking
the defrost heater when the evaporator tem-
perature is + 15°F or higher.
An ohmmeter can be used to test the de-
frost heater and thermostat without disas-
sembling the freezer compartment even if
the evaporator temperature is +15° F or
higher. To check, proceed as follows:
1. Disconnect the unit from the power
source,
2. Open the fresh food door and remove
any items on the top shelf. Remove the
light shield and the fascia/radiant shield
mounting screws in the temperature
control housing. While holding the
front of the housing, remove the rear
mounting screw. Lower the control
housing.
3. Disconnectthe timer wire harness con-
nector from the defrost timer.
SECTION 2. COMPONENTS
© 1999 Maytag Appliances Sales Company
2-15
4. Set the ohmmeter to R x 1K scale and
connect the probes to the No. 2 and
No. 3 terminals of the disconnect plug.
5. The meter should read between 20 to
40 ohms, The resistance is not critical.
If there is continuity between terminals
No. 2 and 3, the defrost heater is in op-
erative condition. !f there are no resis-
tance readings (open circuit) the defrost
heater and thermostat must be checked
individually.
NOTE: When using the meter, avoid
touching the probes as this could result
in a false reading and misdiagnosis.
To test the defrost heater and thermostat
when the evaporator temperature is + 15°F
or below, proceed as follows:
1. Disconnect the unit from the power
source and plug it into a watt meter.
2. Plug the watt meter into power source
and manually advance the defrost timer
to the defrost cycle. See the defrost
timer section for information on manu-
ally advancing the timer.
3. The watt meter should read between
345 and 475 watts depending on the
model (total wattage of the timer mo-
tor and defrost heater). Should the
reading be 0 to 4.5 watts, the defrost
heater or thermostat is defective. To
further isolate the defective part, pro-
ceed to step 4.
4. Disconnect the unit from the watt meter.
5. Follow steps 2 and 3 of testing the
heater and thermostat when the evapo-
rator temperature is + 15% or higher.
6. If the meter reads approximately 240K
ohms, the defrost thermostat is defec-
tive.
To use an ohmmeter, set the meter to R x
1K scale. Ifthe reading is approximately 20
to 40 ohms, the defrost heater and thermo-
stat are operative.
BLUE
| WHITE
*+— 1 H1
3
DEFROST
FOR DIAGNOSTIC CONTINUITY
CHECK 240K OHMS
BLUE WHITE | YELLOW
| VE
A
THERMOSTAT DEFROST
2 "14
ORANGE
HEATER +
16009103-01
SECTION 2. COMPONENTS 2-16
© 1999 Maytag Appliance Sales Company
DEFROST HEATER REPLACEMENT
1. Disconnect the unit from the power
source.
2. Remove the ice maker if equipped.
3. Remove the evaporator cover by loos-
ening the top two screws on each cor-
ner of the cover and removing the bot-
tom screws on each corner.
4. Tiltthe top of the evaporator cover for-
ward and disconnect the wire harness
connector.
5. Remove the evaporator cover and fan
motor assembly. It is very important
that this part be reinstalled in the same
manner as it was originally.
6. Disconnect the defrost heater wire
leads. Using long nose pliers, remove
the defrost heater retainer clips. (One
on the right side of the heater and one
on the left side).
7. Install the replacement heater in the re-
verse order of removal.
Remove the defrost thermostat and
mounting clip by releasing the mount-
ing clip that is snapped around the
evaporator tubing.
Install the new defrost thermostat in the
reverse order of removal. Make sure
the thermostat is located per the draw-
ing below.
DEFROST THERMOSTAT
REPLACEMENT
The defrost termination thermostat is lo-
cated on the top right side of the
evaporator,
1. Follow the first five steps in replacing
the defrost heater.
2. Disconnect the leads from the
thermostat.
16009103-01
Defrost Thermostat
1.5" Away From
/ Back of the Freezer Wall
Foam Block
Defrost Heater
Clip
SECTION 2. COMPONENTS 2-17
© 1999 Maytag Appliances Sales Company
CONDENSER FAN MOTOR
Remove Motor
Wire Harness
MN , .
Remove Fan 7
Motor Bracket
Screws (3)
ty
Remove Ground
Wire Screw
The condenser fan motor is connected in
parallel with the compressor. If the com-
pressor runs but the motor doesn't, the
motor is either defective or disconnected.
if neither operates, check the cold control,
defrost timer, and the cabinet wiring.
To Check The Condenser Motor
Direct
1. Disconnect the unit from the power
source,
2. Remove the insulated cover from the
rear of the cabinet.
3. Disconnect the condenser fan motor
lead connector on the motor terminals.
16009103-01
To remove the lead connector from the
condenser fan motor, grasp the connec-
tor with your thumb inserted between the
connector and the locking lever as shown.
Pull the connector away from the motor.
4. Attach a 115v test cord to condenser
motor and plug into a power source. If
the motor fails to operate, it is defec-
tive and must be replaced.
SECTION 2. COMPONENTS
© 1999 Maytag Appliance Sales Company
2-18
Condenser Fan Motor Replacement
1. Disconnect the unit from the power
source.
2. Remove the insulated cover from the
rear of cabinet.
3. Disconnect the condenser fan motor
lead connector on the motor terminals.
4. Remove the screws that mount the fan
motor to the brackets.
9. Transfer the fan blade to the replace-
ment motor making sure it is installed
in the same manner as the original.
6. Install the fan motor leads and ground
wire.
/. Install those parts previously removed.
Test run the unit.
Loosen Loosen
the screw
the screw
Fan
Cover
Remove Remove
the screw the screw
FREEZER FAN MOTOR
The freezer fan circulates the cooled air
throughout the fresh food and freezer com-
partment. The fan blade is made of poly-
ethylene and is pushed onto the shaft. Itis
important when replacing the fan blade that
the hub of the fan blade faces out, toward
the back of the evaporator fan cover. If the
fan fails or operates erratically, the reduced
air circulation will result in poor cooling char-
acteristics.
16009103-01
Freezer Fan Motor Diagnosis
1. Disconnect unit from the power
source.
2. Remove the freezer shelving.
3. Loosenthe two top screws and remove
the two bottom evaporator cover
mounting screws,
4. Grasp the bottom of the cover. Care-
fully pull the cover forward and down
to clear the upper flange.
5. Disconnect the evaporator fan motor
leads. The wire leads are self-locking
and it is important to squeeze the clip
before pulling the leads off the
terminals.
6. Remove the evaporator fan motor as-
sembly and place it on a work surface.
7. Connect the motor terminals to a ser-
vice cord and plug the cord into the
power source.
8. lf the motor fails to operate, it is defec-
tive and must be replaced.
SECTION 2. COMPONENTS
© 1999 Maytag Appliances Sales Company
2-19
EVAPORATOR
a. FAN MOTOR
>
FAN MOTOR BRACKET
au Y RETAINER
|
| & SLINGER
- a "ar оси mue — == == AE _—__ № —
i | |
MOUNTING A
SCREWS
EVAPORATOR
FAN BLADE FAN SHROUD
Freezer Fan Motor Replacement
1. Follow steps 1through 5, “Freezer Fan
Motor Diagnosis."
2. Remove the screws that secure the mo-
tor bracket assembly to the fan shroud.
3. Remove the fan blade by pulling it off
the shaft.
4. Remove the screws that secure the rear
bracket to the front bracket. Remove
the motor from the rear mounting
bracket.
5. Install the new motor to the rear mount-
ing bracket. Mount the rear bracket to
the front mounting bracket.
6. Install the slinger disc and fan blade on
the replacement in the same position
as on the original motor shaft.
16009103-01
NOTE: Make sure the slinger disc does
not drag on the fan bushing.
/. Install the motor and bracket assembly
onto the evaporator cover.
8. Connect the wire leads and the ground
wire to the motor.
9. Reassemble those parts previously re-
moved and test the unit.
The fan blade is provided with a stop on
the face of the hub. It is properly installed
when the blade is positioned so the stop
rests against the end of the shaft.
2-20
SECTION 2. COMPONENTS
© 1999 Maytag Appliance Sales Company
SECTION 3. CABINET & RELATED COMPONENTS
ADJUSTABLE CANTILEVER
SHELVES
Type #1 - Two support hook frame
design.
Glass or wire cantilever shelves may be
available with your refrigerator. To remove
a shelf, tilt front up and lift the rear up a frac-
tion of an inch and pull straight out. To lock
the shelf into another position, tilt the shelf
with the front up. Insert hooks into desired
shelf openings and let the shelf settle into
place. Check that the shelf is securely
locked into position before loading it with
food.
Type # 2 - Three support hook frame
design.
To remove the shelf, grasp the shelf at the
front with one hand and push up under the
shelf back with the other hand and pull out.
To lock shelf into another position, keep the
shelf horizontal, guiding the support hooks
into the slots in the shelf support at the rear
of the cabinet. Lower the shelf until the
hooks lock into position. Check that the
sheif is securely locked into position before
loading with food.
CANTILEVER SHELF TRIM
The cantilever shelf trims are easily re-
moved by placing the shelf on a flat work
surface. Raise the front of the shelf, grasp
the right underside of the front trim, and pull
toward you. Next, remove the glass from
the rear trim and remove trim.
16009103-01
Install the new rear trim on the glass. Place
the shelf in a vertical position {shelf front up).
Install the glass and rear trim by applying a
downward force on the rear metal shelf
cross brace until it snaps securely in place.
Next, install the front trim on the glass and
the front metal shelf cross brace.
fa
Front
Trim
CABINET DOORS AND
ASSOCIATED PARTS
Inner Door Liner Replacement
The polystyrene inner door liner and the
door seal are mounted to the outer panel
by screws placed around the door flange.
The inner door liner can be replaced with-
out removing the door from the cabinet. if
it Is necessary to remove the door liner,
proceed as follows:
1. Turn the control to the "Off position.
2. Open the freezer door and remove the
screws from around the door flange.
SECTION 3. CABINET & RELATED COMPONENTS 3-1
© 1999 MAYTAG APPLIANCES SALES COMPANY
3. Remove the door liner and transfer the
seal to the replacement liner. Make
sure the lip of the seal will sandwich be-
tween the inner and outer door panel.
4. Position the replacement door liner and
loosely install all the screws around the
door flange.
5. Open and close the door several times
to check the seal for proper alignment.
6. Carefully open the door by pulling on
the middle of the door panel.
NOTE: Do not pull the door by the handle
or the panel will shift out of alignment.
7. Tighten all corner screws.
8. Open and close the door several times.
Recheck the door seal for proper align-
ment. If alignment is correct, tighten
remaining screws,
Tighten the screws until they are just
snug, then turn clockwise another one-
half turn.
NOTE: Do not attempt to twist the door
panel after all the screws have been
tightened.
9. Transfer the shelves and the trim to the
replacement liner.
Outer Door Panel Replacement
NOTE: Remove all food from the freezer
door.
1. Turn the control to the "Off" position.
2. Remove door handle and trim.
1600910301
3. Use a soft lead pencil to trace around
the upper hinge. (This will aid in replac-
ing the hinge.)
4. Remove the upper hinge and place it
on top of the unit with newspaper or
cloth underneath to prevent scratching.
Do not misplace the spacers. Place the
door on a padded work surface.
5. Transfer the handle, trim, plug button,
bushings, gaskets and liner to replace-
ment panel.
6. Install the top hinge using the tracing
to align the hinge.
FRONT WHEEL ASSEMBLY
The front wheel assembly is securely fas-
tened by two screws to the face plate of the
cabinet.
Depending on the model, you will encoun-
ter adjustable or non-adjustable front wheel
assemblies. To lock the cabinet in place
lower the front leveling legs.
CABINET LEVELING
To enhance its appearance and maintain ef-
ficient performance, the refrigerator should
be level. The front wheels were adjusted
at the factory so the doors were properly
aligned and the cabinet level, However, jar-
ring in transit, or standing the refrigerator
on uneven floors may cause the doors to
shift out of alignment. If front alignment is
necessary, adjust the wheel with a hex head
driver. Clockwise raises the cabinet,
counter-clockwise lowers the cabinet. If
front wheels are not adjustable, use level-
ing legs to level.
SECTION 3. CABINET & RELATED COMPONENTS 3-2
© 1999 MAYTAG APPLIANCES SALES COMPANY
DOOR SEAL
The drawing shows a view of the magnetic
door seal used on all models mentioned in
this manual. The magnetic strips are at-
tracted to the metal cabinet front, provid-
ing an excellent seal around the entire door.
A visual inspection of the door seal while
opening and closing will reveal any areas
of poor seal. You will notice a slight expan-
sion and compression of the seal bellows
as the door is opened and closed.
Magnetic A
Strips > 7
у
N°
Door Seal And Magnetic Strips
TOE-IN & TOE-OUT ADJUSTMENTS
To seal evenly around the entire door, the
seal must make contact at the top and bot-
tom at the same time. For this reason, the
door, when ajar, should not toe-in or toe-out.
To correct a toe-in or toe-out condition, first
check that the hinge-side of the door is par-
allel with the cabinet then proceed as
follows:
16009103-01
1. Check the cabinet levelers and adjust-
able wheels. Raising the handle side
may correct a toe-out; lowering may
correct a toe-in.
2. Loosen all inner panel mounting
screws along the top, bottom and
handle side of the door. Do not loosen
the screws along the hinge side.
3. Hold the corner that toes-in stationary,
and push in on the toe-out corner until
the door is lined parallel with the
cabinet,
4. Open and close the door several times
to ensure a proper fit. If necessary, re-
peat steps 2 and 3.
5. Tighten all loosened screws.
HINGE ADJUSTMENTS
Hinge adjustments are necessary when:
1. The seal is not sealed sufficiently along
the hinge side of the door.
2. The seal is compressed more than 1/
16" on the hinge side (causing a poor
seal elsewhere around the top.)
3. The distance between the door and
cabinet is greater at the top than it is at
the bottom, or vice versa.
4, The hinge side of the door is not 1/16"
out past the side of the cabinet when
(measured from the side of the cabi-
net), or when the door panel top is not
7/64" above the cabinet top.
5. If one or more of these conditions ex-
ist, adjust one or both hinges to correct
the trouble. Raising the hinge side may
correct a door sag.
SECTION 3. CABINET & RELATED COMPONENTS — 3=3
© 1999 MAYTAG APPLIANCES SALES COMPANY
DOOR ALIGNMENT
The cabinet door on all models is in correct
alignment when:
1. The hinge side of the door is an equal
distance from the cabinet flange at the
top and bottom.
2. The gasket seals smoothly and is com-
pressed no more than 1/16" along the
hinge side with the door closed.
3. The door lines up with the side of the
cabinet (viewed from the front). The
door panel is parallel with the cabinet
top.
In many cases, leveling the refrigerator will
eliminate the need for cabinet door adjust-
ments. Ensure that the refrigerator is plumb
by checking all edges as well as both sides
of the cabinet with a carpenter's level.
DOOR SWITCH
Disconnect the unit from the power
source.
The door switches can be easily removed
by using a flat blade screw driver or putty
knife. Pry from the liner and disconnect
wires.
WATER/ICE DISPENSER FREEZER
DOOR REMOVAL
Before attempting to remove the door
hinge, look at your refrigerator and note the
exact number and position of all protective
shims on the door hinge. Later, when you
replace the hinge, these must be positioned
correctly.
16009103-01
Disconnect the unit from the power
source.
Open the door completely. Remove
the bottom hinge cover by squeezing
on the bottom and top while pulling it
toward you.
Locate the water line tubing coming out
of the cabinet. Carefully pull on the tub-
ing until the connector is on the outside
of the cabinet.
Disconnect the door water line tubing.
Remove the top hinge cover.
Disconnect the door wire harness by
pulling apart the two halves of the con-
nector. DO NOT PULL THE WIRES.
Mark the position of the top hinge with
a lead pencil.
Remove the ground wire screw with a
1/4" socket & rachet. Hold door with
one hand and finish removing screws.
Leave the hinge in the door.
Replace the door in reverse order of
removal.
SECTION 3. CABINET & RELATED COMPONENTS 3-4
© 1999 MAYTAG APPLIANCES SALES COMPANY
WATER/ICE FREEZER DOOR REMOVAL
Lift the door up enough to allow
another adult to guide the water
line through the hinge pin. Rest
door on a non-scratching surface.
Lo
==
Water Line
Connector
Water Line
To Cabinet
Water — /
Line Push collet against
connector to release
the door water line Mark the location of the bottom
hinge with a pencil. Use a 5/16"
socket & ratchet to remove the
3 screws from the bottom hinge.
Pull Apart
unan
Hinge
Ground Hinge |
Wire Screws
Screw
160091 03-01 SECTION 3. CABINET 8 RELATED COMPONENTS 3-5
© 1999 MAYTAG APPLIANCES SALES COMPANY
4. Place slide selector in center position.
FOUNTAIN ASSEMBLIES - Manual
Slide Control 5. Remove the three fountain bracket
mounting screws. (See drawing in the
lower left column.)
Eme Sun men 6. Carefully pull the assembly out of the
| i fountain housing. You now have full ac-
| \ cess to the solenoid, dispenser mecha-
| nism, PC delay board, lock switch, light
| | socket, and the light switch.
—
7. To repair the assembly, disconnect
ctri uick dis nect.
ESCUTCHEON MOUNTING SCREWS electrical quick disconnect
h | Checking and Replacing the Crusher
and Water/Cube Switch:
/ A NTAN
| Ани —} 1. Disconnect the unit from the power
source.
Ice and Water Fountain Bracket 2. Perform steps 1 through 3 of Ice 8 Wa-
Assembly Removal ter Fountain Bracket Assembly
Removal.
1. Pull straight out to remove the grill
from the fountain sump. 3. Remove the two slide selector mount-
ing screws. (See drawing in the lower
2. Remove the two escutcheon mounting left column.)
screws.
4. Remove the slide selector.
3. Raise the escutcheon up and off the
fountain assembly. 5. Check the continuity of the switch. If
defective, go to step 6.
SLIDE SELECTOR CENTERED 6. Remove the switch mounting screw.
7. Remove the switch.
8. Remove the wire leads.
9. Install new switch in reverse order of
removal.
16009103-01 SECTION 3. CABINET 8 RELATED COMPONENTS 3-6
© 1999 MAYTAG APPLIANCES SALES COMPANY
CRUSHER WATER/CUBE
SWITCH SWITCH
Lock
SWITCH
LIGHT
SWITCH
Checking and Replacing the Actua-
tor Switch:
1. Disconnect the unit from the power
source,
2. Perform steps 1 through 6 of To Re-
move [ce and Water Fountain Bracket
Assembly.
3. Check the continuity of the switch if
defective go to step 4.
4. Remove the mounting screw.
5. Remove the switch.
6. Remove the wire leads.
7. Install new switch in reverse order of
removal.
16009103-01
Fountain Heater
(A fountain heater is used on all dispenser
models).
The fountain heater is used to evaporate
any moisture that might accumulate from
condensation. itis bonded to self-adhesive
aluminum foil which is shaped to fit the out-
side of the fountain housing.
1.
Disconnect the unit from the power
source.
Remove the ¡ce and water fountain
bracket assembly as discussed earlier.
Disconnect the electrical quick
disconnect.
Check for resistance between the red
wire with the black tracer and the white
wire on the fountain housing, quick dis-
connect electrical connector.
If the fountain heater reads open, go to
step 5.
Remove the door from the unit and dis-
assemble liner and the gasket.
Carefully remove the foam seals and
disconnect the heater wire terminals.
Pull the foil heater backing from the
fountain.
Reassemble the parts in reverse order
of removal.
SECTION 3. CABINET 6 RELATED COMPONENTS — 3-7
© 1999 MAYTAG APPLIANCES SALES COMPANY
PC BOARD CHECKS
IPIN # 1} WHITE VARE TO GROUND
РМ #2) НЕ МАВЕ ТО DOOR SOLENOID
[214 # 3) RED RE TO LOCK OUT SWITCH
{FIN F 8) PRIN, WARE TO ALGER MOTOR
(PIN A St BLACK YARE TC WATER DISPENSER Val YE
{PIN FB) BLACK WIRE TO SELECTOR SWITCH
(PINE 7) BROWN WIRE TO DOOR 501 ENDO
The following checks should only be made
by a Qualified Service Technician.
1. Disconnect unit from the power
source,
2. For easy access of the PC board, per-
form steps 1 through 5 of Ice and Wa-
ter Fountain Bracket Removal.
3. Make sure everything is clear. Apply
power to the refrigerator and perform
the following checks with a volt
ohmmeter.
IF DOOR FAILS TO OPEN:
Note: The following checks will be at
terminal board connector T1.
1. Check for 115 volts AC from PIN 3 to
PIN 1. (Lock out switch must be
closed.)
2. Check for 115 volts AC from PIN 4 to
PIN 1 when selector is set to crushed
or cubed and actuator is depressed.
If not there, check selector switches,
actuator switch and associated wiring.
16009103-01
3. During activation, check for approxi-
mately 100 volts AC from PIN 7 to PIN2.
И 100 volts AC is not present, replace
the board. If voltage is present, check
the solenoid and associated wiring.
IF THE DOOR FAILS TO CLOSE:
1. Disconnect the unit from the power
source if the door still stays open.
Check the solenoid, door hinge and
spring assembly. If the door closes, go
to step 2.
2. Plug the unit in, check for 0 volts AC
from PIN 1 to PIN 4. If you read 115
volts AC check switches and wiring. If
voltage reads 0, go to step 3.
3. Disconnect the unit from the power
source and remove the circuit board.
Check continuity from PIN 7 to PIN 2.
If shorted, replace the circuit board.
Fountain Door Delay
Normal door delay will be approximately 2
seconds.
Excessive Door Delay
Check for mechnical obstruction, if none
replace PC board.
Short Door Delay
1. Check for 115 volts AC between PIN 3
and PIN 1. This ensures proper wiring
and good connection. Low voltage
may represent à problem in wiring con-
nections or at outlet.
2. Check for 115 AC between PIN 1 and
Pin 4 when dispenser switch is
engaged.
SECTION 3. CABINET & RELATED COMPONENTS 3-8
© 1999 MAYTAG APPLIANCES SALES COMPANY
The PC board uses this line to charge the
holding circuit, A low voltage condition
here may represent poor switch contacts.
(Low voltage may cause short delays.) If
low voltage conditions do not exist, replace
the PC board.
FOUNTAIN ASSEMBLY - Electronic
Control
—e,
/ A] META
GRILL
Ice & Water Fountain Bracket
Removal
1. Disconnect the unit from the power
source.
2. To remove the grill from the fountain
sump, pull straight out.
3. Remove the two escutcheon mounting
screws.
4. Carefully raise the escutcheon up and off
the fountain assembly.
5. Disconnect the quick disconnect edge
connector from the PC fountain switch
board.
6. Remove the three fountain bracket
mounting screws.
16009103-01
Quick disconnect
edge connector from
the PC fountain
control board
(Pult up to remove)
PC FOUNTAIN SWITCH
BOARD, MOUNTING
SCREWS
REAR VIEW FOUNTAIN ESCUTCHEON
7. Carefully pull the assembly out of the
fountain housing. You now have full ac-
cess to solenoid, dispenser mecha-
nism, PC fountain contro! board and
hght socket.
8. To repair the assembly, disconnect
electrical quick disconnect.
PC FOUNTAIN
CONTROL BOARD
FOUNTAIN ASSEMBLY
(ESCUTCHEON REMOVED)
— ° —
O о
SECTION 3. CABINET & RELATED COMPONENTS 3-9
© 1999 MAYTAG APPLIANCES SALES COMPANY
Fountain Bracket Assembly
ICE DOOR
SOLENOID
FOUNTAIN LIGHT
ELECTRICAL
CONNECTOR
ACTUATOR
SWITCH
Checking and Replacing the Actua-
tor Switch:
1. Disconnect the unit from the power
source,
2. Perform Steps 1 through 6 of Ice & Wa-
ter Foutain Bracket Removal.
3. Continuity check the switch. if defective,
go to step 4.
4. Remove the mounting screw.
5. Remove the switch.
6. Remove the wire leads.
7. install the new switch in reverse order
of removal.
16008103-01
Electronic Control Board
Troubleshooting
The following checks should only be made
by a Qualified Service Technician.
NO LED'S ILLUMINATED ON THE FOUN-
TAIN TOUCH PAD
1. Check ribbon cable/wire connection
between the two PC boards ("Mechani-
cally Tight").
2. Checking the AC line in fountain veri-
fies operation/closure of door interlock
switch.
+ + E J
t
+ +
PINK
BLACK M = ==
BLACK ==wH=s
VIOLET TRACE SIDE OF PC FOUNTAIN CONTROL BOARD
RED/BLACK | =
RED/WHITE —— maga sine
NC == - |
BLUE BROWN -— 1
WHITE {T1)}—— mp dur | BROWN — F2
3. Check fountain heater continuity. Un-
plug the unit. Check heater resistance
neutral to heater connection it should
read approximately 4800 ohms.
4. Replace LED/Switch board.
5. Replace fountain control board.
SOME LED'S WILL NOT LIGHT
1. Replace LED/Switch board.
2. Replace fountain control board.
FOUNTAIN LIGHT WILL NOT LIGHT
1. Check bulb and mechanical connec-
tions.
2. Does fountain light iluminate during a
dispense?
SECTION 3. CABINET & RELATED COMPONENTS
© 1999 MAYTAG APPLIANCES SALES COMPANY
3-10
Yes: (a) Replace LED/Switch board.
BIN FRONT
No: (b) Replace fountain contro! board.
WILL NOT DISPENSE ICE OR WATER
1. Press lock button 3 times. If another
LED lights, replace LED/Switch PC
FRONT
Board. MOU NTING
SCREWS
2. When actuator pad is pressed, does
- . 7 CRUSHER HOUSING
fountain light come on: MOUNTING SCREWS
Note: Make sure fountain light bulb is
good!
No: {a) Check actuator switch and 3. Place the bin assembly on the crusher
mechanical connections. housing.
(b) Replace PC control board.
|
Yes;(a) If nothing works (ice door sole- | | |
noid/auger/cube solenoid/water |
valve), replace PC control board. INSIDE OF BIN
| Ys _
No: (b) If some functions work check for
115 VAC at ice door solenoid/
auger/cube solenoid/water valve
terminals during dispense.
(1) If 115 VAC output exists, replace CRUSHER HOUSING
component. MOUNTING SCREWS
(2) K 115 VAC output is not present,
replace control board.
4. Care should be taken when removing
ICE CRUSHER BIN AND SHELF the control rod spring to ensure it does
ASSEMBLY not snap back on your finger.
1. To service the ice/crusher related com-
ponents, turn the ice maker off by lift-
ing the shut off arm. Remove the bin
assembly.
2. Remove the four bin front mounting
screws.
160091 03-01 SECTION 3. CABINET & RELATED COMPONENTS 3-11
© 1999 MAYTAG APPLIANCES SALES COMPANY
CONTROL ROD
BRACKET
ón
и :
|
=
” CT fe —
«ll
Г}
SCREW
DRIVER
CONTROL RCD
SPRING
чо. ~ CRUSHER CONTROL ROD
5. When removing the control bracket,
hold the clip; this will prevent it from
being thrown off.
6. When removing the crusher housing,
position the snap ring {1) as shown in
the above drawing, then remove it and
the retainer washer (2).
/. Pushthe auger assembly away from the
crusher housing using your thumb (3).
8. Toremove the auger nut turn it
clockwise.
16009103-01
DISPENSER
IMPELLER
UGER
NUT /
SNOW SHIELD
ICE DIVERTER
MANDIBALE PIN
CRUSHER
CONTROL
ROD
ACTUATED
BLADES
9. Replace the parts as required. The
number on the blades should face the
back of the auger nut. Blade number 4
should be nearest to the auger nut.
10. Make sure the ice diverter is aligned to
the boss on the dispenser mandiplate.
11. Reinstall all other components in the re-
verse order of removal.
ICE/CRUSHER BIN SHELF ENCLO-
SURE ASSEMBLY
TURN CLOCKWISE TO
OVE OKE
AUGER MOTOR — REM ; DRIVE Y
MOUNTING SCREWS —
SOLENOID YOKE ASSEMBLY
MOUNTING SCREWS
SECTION 3. CABINET & RELATED COMPONENTS 3-12
© 1999 MAYTAG APPLIANCES SALES COMPANY
The auger motor and solenoid are located
behind the storage bin. The yoke, fastened
to the motor, engages the drive ring and
turns auger in a clockwise direction. Both
the yoke and drive ring are designed to pre-
vent a loosening of the yoke by exerting
counter pressure while in operation.
The auger motor makes one revolution ap-
proximately every three seconds. To de-
termine the free movement of the auger
motor, place the selector switch in either
cube or crushed position (slide selector
models}. On electronic models, push the
cube or crushed selector pad. Open the
freezer door, push and hold the cabinet in-
terlock switch in the closed position while
pushing the dispenser actuator pad.
The solenoid is energized only when the
selector switch is in the cube position. This
will pull back the actuated blades. To deter-
mine the free movement of the solenoid/
yoke assembly, place the selector switch
(slide selector models) in the cube position.
On electronic models, push the cube selec-
tor pad, Open the freezer door. While push-
ing the dispenser actuator pad, push and
hold the cabinet interlock switch in the
closed position. Observe the control rod
yoke for vertical movement.
The auger motor and the solenoid/control
rod yoke assembly are easily removed.
1. Disconnect the unit from the power
source,
2. Remove the ice/crusher bin assembly.
3. Remove the retainer screw at the bot-
tom left side of the ice/crusher bin shelf
enclosure.
4. Pull the shelf forward and disconnect
the quick disconnect.
16009103-01
| o a NO
!
!
SOLENOID YOKE AUGER MOTOR
ASSEMBLY
5. Remove the assembly from the freezer
and place on a flat work surface.
6. To check the auger motor, attach an
ohmmeter probe to the auger motor
terminals. The meter should show re-
sistance. If the meter does not show
resistance, the motor should be re-
placed.
7. To replace the motor, hold the auger
motor armature and turn the yoke
clockwise, releasing yoke from the mo-
tor shaft. Remove the yoke and
washer.
8. Remove the four mounting screws that
fasten the motor enclosure. Remove
the motor from the enclosure.
9. Install the replacement part in reverse
order of removal.
10. To check the solenoid yoke assembly,
attach an ohmmeter to the solenoid ter-
minals. The meter should show resis-
tance. If it does not show resistance,
replace the solenoid yoke assembly.
11. Remove the four screws that fasten the
solenoid yoke assembly to the enclo-
sure. Remove the assembly from the
enclosure,
12. Install the replacement part in reverse
order of removal.
SECTION 3. CABINET & RELATED COMPONENTS 3-13
© 1999 MAYTAG APPLIANCES SALES COMPANY
Operation
The water valve assembly is mounted
on the inside of the machine compart-
ment. The assembly consists of a dual
filter valve and a dual water/ice valve.
The water supply (copper) tubing is
connected to the inlet of the dual filter
valve. Plastic "Y” tubing is connected
from the outlet of the dual water filter
valve to the inlet of the water filter as-
sembly. From the filter a plastic tube
feeds the dual water/ice valves. The
dual valve controls the flow of filtered
water to the icemaker and to the water
dispenser.
When dispensing water, the filter valve
and the fountain valve are both ener-
gized simutaneously to provide fil-
tered water to founatin. During the fill
cycle of the icemaker the filter valve
and icemaker valve are both energized
simuatneously to provide filtered wa-
ter to the Icemaker.
The filter head assembly is mounted
to the back of the fresh food liner us-
ing two mounting screws. Plastic tub-
Ing passes thought an opening in the
back of the cabinet. The ends of the
tubing connect to the inlet and outiet
fittings on the filter head.
Replacing the Filter Cartridge
The water filter mounts in the upper
fresh food compartment, on the under-
side of the control housing. It is rec-
ommended that the filter cartridge be
replaced every 6 months or sooner, if
the water flow to the dispenser or
icemaker decidedly decreases or if an
objectionable taste or odor occurs.
16009103-01
. Place a cloth or paper towel on the shelf
below the filter to catch any drops of
water that may fall when replacing the
filter.
. Twist the filter cartridge 1/4 turn coun-
terclockwise so the ears on the car-
tridge are able to disengage from the
filter head.
. Carefully remove the replacement filter
from its packaging.
. Apply the sticker to the cartridge to
remind you to replace the filter within 6
months.
. Reinstall the new cartridge in reverse
order of removal.
. Dispense 8 to10 glasses of water
through the dispenser to purge any air
from the system.
. Carefully check for leaks.
SECTION 3. CABINET & RELATED COMPONENTS 3-14
© 1999 MAYTAG APPLIANCES SALES COMPANY
Checking the water valve coils
1. Disconnect the unit from the power
supply.
2. Remove the machine compartment
cover.
3 Remove the valve(s) bracket assembly
mounting screw. Carefully pull the
bracket assembly out of the machine
compartment.
4. Remove the valve(s) terminals and
attach ohmeter probes should show
continuity.
Replacing the Water Valve(s):
1. Shut off water and disconnect the unit
from the power supply.
2. Remove the machine compartment
cover.
3. Locate the water valve(s) assembly and
remove the mounting screw.
4. Disconnect the water inlet fitting from
the water valve and drain the water into
a container.
5. Disconnect water valve outlet lines.
Drain water into a container,
6. Remove the wire leads from the defec-
tive water valve(s).
7. Remove and replace the defective valve
assembly from the main bracket assem-
bly.
16009103-01
8. Install in the reverse order of removal
those parts previously removed. Turn
on the water and check all connection
for leaks.
Filter Valve(s)
lcemaker/water Valve(s)
(Top)
SECTION 3. CABINET 6 RELATED COMPONENTS 3-15
© 1999 MAYTAG APPLIANCES SALES COMPANY
WIRING PICTORIAL WATER FILTER
MODEL REFRIGERATORS
ICEMAKER FOUNTAIN
ICEMAKER 8 FOUNTAIN
DUAL VALVES (77182-1)
D
=
3 **Red (Fountain)
Coil
| i Black wire from pin 7 fountain PC control board
; 1
* *Green
Green Coil
Coil Light/Inter-
Lock Switch
N . White Wire (Neutral)
WATER FILTER Wh/Blu Wire
DUAL VALVES (77182-4)
* Green Coils 250 Ohms + 6%
** Red Coil 275 Ohms + 6%
Note:
Water Filter Valve Body is Yellow
lce/Water Valve Body is Blue
16009103-01 SECTION 3. CABINET & RELATED COMPONENTS 3-16
© 1999 MAYTAG APPLIANCES SALES COMPANY
WATER LINE ROUTING FOR PURI CLEAN
WATER FILTER SYSTEM
WATER FOUNTAIN
ICEMAKER
5/16" O.D. Tubing
—1/4" O.D. tubing
Water Tank
Assembly
И Union
ser O.D. Tubing
Icemaker
Water Valve
Valve у 1/4” O.D. tubing
—
f
J A =
Filter Valves
ja” O.D. tubing
T
M
Puri Clean Water
and Ice Filter
Assembly
16009103-01 SECTION 3. CABINET & RELATED COMPONENTS 3-17
© 1999 MAYTAG APPLIANCES SALES COMPANY
WATER FILTER AND ICEMAKER WATER TUBE
ROUTING ON THE BACK OF THE REFRIGERATOR
Water Filter Qutlet
yd —
Water Filter Inlet ~~ NW Icemaker Inlet
CO 7
=
" E
Wate Nicemaker
Valves
16009103-01
© 1999 MAYTAG APPLIANCES SALES COMPANY
Filter
Valves
SECTION 3. CABINET & RELATED COMPONENTS 3-18
SECTION 4. ICEMAKER
SERVICING
The design of this ice maker allows all of
the components to be tested without re-
moving the ice maker or moving the refrig-
erator away from the wall to access the
water valve.
=
Remove the cover and you will see the test
points identified on this module.
Neutral side of line
Motor connection
Heater connector
Thermostat connection
LT side of line
Water valve connection
<| PI TD
NOTE: Read this section completely be-
fore doing any testing or adjusting. Refer
to the tech sheet for complete testing in-
formation.
The test holes are identified as "N", "M", and
"VW", etc.
16009103
TEST PROCEDURES
Ice maker plugged into power/Shut-off arm
down/Freezercold:
* Test points L & N will verify 120 volts to
ice maker module.
(Make sure your test probes go into
the test points 1/2".)
* lestpoints T 8 H will verify if the bimetal
thermostat is open or closed.
Short T&H with an insulated piece of
wire (14 gauge) to run the motor. if the
motor doesn't run, replace the module
assembly. If the motor runs, replace the
bimetal thermostat.
* If you leave the jumper in for half of a
revolution, you can feel the heater in the
mold heat up, if it is good.
Remove the jumper and the water valve
will be energized in the last half of the
revolution. (Make sure the freezer tem-
perature is cold enough to close the bi-
metal).
SECTION 4. ICE MAKER 4-1
© 1998 Maytag Corporation
NOTE: Do not short any contacts other
than those specified. Damage to the ice
maker can result.
Ice Maker Unplugged:
* Test points L&H will check the resistance
of the heater (72 ohms). Replace the
mold and heater assembly if not near
this value (+/- 10 ohms).
(Ejector blades should be at the end of
the cycle position.)
SERVICE PROCEDURES
Cover: Pull water adjustment knob first and
snap off cover. Index knob and reinstall in
same position for same water fill. (Some
units may not have index knobs.)
Shut-off arm
Screw adjustment
Mold attachment
{Screw access ports)
Module, Motor, and Support Assembly:
Insert Phillips screwdriver in access ports
of module. Loosen both screws. Discon-
nect shut-off arm. Pull mold from support
assembly. To remove module only, remove
3 Phillips screws and pull module out of
housing.
16008103
Shut-Off Arm: Pull out from white bush-
ing. Reinsert to full depth. See page 5-15
for detailed position.
Mold & Heater: Remove module and sup-
port assembly. Install on new mold and
heater assembly.
Bimetal: Remove module and support as-
sembly. Pull out retaining ring clips with
bimetal.
Fill Cup: Remove module and support as-
sembly. Remove ejector blades and shut-
off arm. Pull fill cup up from mold.
Ejector Blades or Stripper: Remove mod-
ule and support assembly, When reinstall-
ing ejector blades, realign "D" coupling with
module cam.
ACCESSING THE CONTROL BOX
To remove motor and contact assembly
from control box, take out three screws
(see arrows) and pull free after disconnect-
ing the shut-off arm.
SECTION 4. ICE MAKER 4-2
© 1998 Maytag Corporation
MODULE COMPONENTS
Shut-off
arm linkage
—_— HUA
Follower
Ground {slightly longer)
than other 3 terminals so
that ground makes first
and breaks last when dis-
connected or plugged in.
Warning - Never rotate
the blade or the drive
gear... It will ruin the
main assembly.
There are several switches which will jam
if manually turned counterclockwise. Also,
the gears will be destroyed if turned clock-
wise. If you need to advance the ice maker
into the cycle, use a jumper to bridge "H" to
"T". Unless the motor is defective, it will run.
(The shut-off arm must be in the "ON"
position.)
16009103
NOTE: There are several slotted shafts on
the motor assembly board. Do not under
any circumstances insert a screwdriver
and attempt to turn these shafts. These
slots are to permit assembly only.
NOTE: There are no repairable or replace-
able components in the module. Unless
replacing the module, there should be no
need to remove it when diagnosing or re-
pairing the ice maker.
SECTION 4. ICE MAKER 4-3
© 1998 Maytag Corporation
WATER FILL ADJUSTMENT
Turning the water level adjustment screw
will move the contact in its relationship with
the contact ring segment. This causes the
contact to vary the time that the water valve
Is energized since the contact ring is tapered
at the end of the fill time.
* Turning the knob or screw clockwise
decreases fill - counterclockwise in-
creases the fill amount.
* Only one revolution is possible with the
cover on, due to a stop molded on cover.
360° will affect fill by 40cc - 180° varies
the fill by 20cc.
Further adjustment could damage
module.
If water valve adjustment screw falls out,
put it back in and align the hole in the
hole as shown.
© Water
© | adjustment
area
a
= MM
©
When small hole is centered in larger hole the water
fil! adjustment is for 7.5 seconds fill time (normal).
Water valve energized
7,5 secs 140cc fill ss
Viewed from front
{Module Side)
WHAT HAPPENS DUR-
ING BLADE ROTATION
(Do Not Test if blades
are past rest position).
Thermostat opens in this
range of rotation
6 o'clock position
Ejector blade stop position
(about 1:30 o'clock)
Ejector stalls on
ice {1/2 minute
to 5 minutes)
16009103
O 1998 Maytag Corporation
SECTION 4. ICE MAKER 4-4
WATER PROBLEMS
Water quality can cause ice makers to fail
or produce unacceptable cubes. If mineral
content or sand is a problem, the screen in
the fill valve can restrict, A particle of sand
can keep the valve from seating properly.
Results will be small crescents {or no ice)
or flooding of the ice container if the water
valve does not close.
Mineral content can also lime up the mold
causing wicking of water over the mold and
poor cube release. Silicone is applied at the
upper edges, around the fill cup and
stripper.
TEMPERATURE PROBLEMS
Temperatures in the freezer section which
average above the normal 0° +/- 5° will slow
the production of ice. Complaints of inad-
equate crescent production may be cor-
rected by setting the freezer to a colder tem-
perature in this one-revolution ice maker is
17° +/- 3°. Obviously, the ice will be well
frozen when these temperatures are
achieved, but cycling time will be slowed if
the freezer temperature is not cold enough
to achieve these mold temperatures easily.
NOTE: Only the thermostat mold with
heater and wiring harness are replaceable.
Any other failure (including the motor) re-
quires replacement of the module assem-
bly. If you are replacing the mold assem-
bly, it comes with a new mold heater in-
stalled. External plastic parts are also re-
placeable.
A failed mold heater requires complete re-
placement of the mold and mold heater
assembly.
16009103
THERMOSTAT
If the thermostat is diagnosed as defective,
it can be removed and replaced easily. Re-
move the module from the mold by taking
out two Phillips screws.
Screws
E
с ©
&
= т = I
Pull
(Front of module)
Pull the module free of the mold and you
will see the thermostat on the mold side.
Thermostat
Retaining Clips
Using needle nose pliers, grasp one of the
thermostat clips and pull out. Press in new
thermostat, making sure that pins are prop-
erly indexed. Using this procedure, itis not
necessary to remove the electrical assem-
bly. if you are replacing the module, trans-
fer the clips to the new mold support. {Use
new thermal bonding material.)
SECTION 4. ¡CE MAKER 4-5
O 1998 Maytag Corporation
INSTALLATION
Installation Procedure
1. Start with arm in "down" position.
2. Follow steps 1, 2, and 3.
Into bushing
1. Push arm into center
slot in white bushing \
- bottom out pa
Flange
A“
Fill cup
/ 2. Push arm
3. Arm should be inside through fill cup
Shut-off arm Down flange hole past
edge of housing
position notch
HARNESS
To remove the wiring harness, depress the
retaining tab and pull the plug free.
Depress
SECTION 4. ICE MAKER
16009103
© 1998 Maytag Corporation
LEVELING ICE MAKER
(Ensures uniform ice crescents)
_—
Loosen, Level I/M by
sliding left or right in
slot of bracket. Tighten.
Make sure the refrigerator is level front to back (adjust legs or rollers).
REMOVING & REPLACING FILL CUP
To remove fill cup, you must separate mold The appropriate break-out plug needs to be
and blade from module housing. Remove removed from the fill cup for your model.
blade from fill cup. Check old ice maker.
Pull cup up and out of slot -
requires considerable force
16009103 SECTION 4. ICE MAKER 4-7
© 1998 Maytag Corporation
OTHER INFORMATION
SPECIFICATIONS
* Motor connectors can be damaged if Mold 185 watts, 72 ohms
leads are removed. Heater
* The motor is available only as part of the Thermostat Close 17° {+ / -) 3°
complete module assembly. (Bimetal) Open 32° (+ / -) 3°
* One revolution of the blade takes three
minutes {plus stall time on ice).
Water Fill 140cc, 7.5 seconds
< Benchtest cord can be made from cabi-
net socket. Motor 1.5 watts, 8,450 ohms
* Tan white wir socke
and Wires on t plug are Module Stamped circuit, Plug-
water valve leads. in connectors
Cycle One revolution
(ejects and water fill)
16009103 SECTION 4. ICE MAKER 4-8
© 1998 Maytag Corporation
SECTION 5. TROUBLESHOOTING
DISCONNECT THE UNIT FROM THE POWER SOURCE
CONDITION
POSSIBLE CAUSE
CORRECTION
Unit does not run. No light in
refrigerator.
* No power at AC distribution
panel of house.
* AC outlet.
-- Defective outlet.
-- Open circuit to AC outlet,
* Defective service cord plug.
* Open service cord or open
machine compartment
wiring harness.
* Two simultaneous prob-
lems-light bulb out and open
AC circuit to compressor.
» Check and advise customer to
call an electrician.
* Advise customer:
--to have defective outlet
replaced.
-- Replace fuse. If problem not
corrected, advise customer to
call electrician.
* Replace.
* Repair or replace if necessary,
Refer to wiring diagrams and
check circuit,
* Replace light bulb, Refer to
wiring diagrams and check
circuit,
Unit does not run, light in * Temperature control. * See below:
refrigerator works.
-- Defective or adjusted -- Replace or adjust if necessary.
incorrectly.
«= AC circuit open to control. *- Refer to wiring diagrams and
check circuit.
* Defrost timer. » See below:
-- Defective (contacts com- -- Replace.
pleting compressor circuit
are open}.
-- AC circuits open to timer -- Refer to wiring diagrams and
{motor winding or contacts). check circuit.
-- May be defrosting. -- Repair or replace.
* Overload protector. * See below:
-- AC circuit open to overload. -- Refer to wiring diagrams and
check circuit.
-- Defective overload. -- Replace.
* Starting relay. » See below:
-- AC circuit open to coil {over- | --Refer to wiring diagrams and
load does not click). check circuit.
-- Defective relay. -- Replace.
* Compressor motor. * See below:
-- AC circuit open to -- Refer to wiring diagrams an
compressor. check circuit.
-- Defective compressor {over- -- Replace.
load may or may not click
depending upon what is
wrong with compressor).
* Low line voltage (overload * Check voltage. Must be at least
will click on and off as unit 100V with all other load on the
tries to start). line.
16009103 SECTION 5. TROUBLESHOOTING 5-1
© 19928 Maytag Corporation
DISCONNECT THE UNIT FROM THE POWER SOURCE
Unit runs excessively or
continuously.
Unit does not run for period
of time after defrost.
Unit runs continuously but
there is no cooling in refrigera-
tor and freezer compartments.
Unit runs continuously. The
refrigerator and freezer com-
partment are both too cold
{normal wattage reading).
Unit runs continuously. The
refrigerator compartment
not cold enough, but freezer
compartment is colder than
normal.
Unit runs excessively or contin-
uously. The refrigerator and
freezer compartments are cool-
ing, but are not cold enough.
CONDITION POSSIBLE CAUSE CORRECTION
* Complete or possible partial * See "Checking Operating
restriction under high ambi- Pressure".
ent {cycles on overload pro-
tector after unit stops and
tries to restart).
Check to ensure light does
not stay on continuously.
* Dirty or restricted condenser,
due to particularly greasy,
dusty, or significant pet
traffic in the home
Defective cold control.
Condenser fan not running.
Defrost timer is defective
(does not advance - advance
to cool cycle).
Substantial loss of sealed
system charge (low wattage
readings).
Restricted capillary or drier
on high side (low wattage
readings while running).
Will cycle on overload when
unit tries to start after
defrost cycle, or after
having been shut-off and
restriction is still present.
Defective compressor.
* Temperature control is
defective (short contacts or
not adjusted).
Freezer control not adjusted
properly.
Air duct from freezer to
refrigerator is blocked
{normal wattage reading).
* Freezer fan.
-- Defective fan motor.
* Check light switch and
replace if needed. Check
door adjustment.
* Advise customer that it
may require cleaning
periodically in this
environment.
* Repair or replace.
* Repair or replace.
-- Replace.
* Locate and repair leak before
recharging.
* Replace defective part
or parts.
* Repair or replace.
* Replace or adjust as
required,
* See "Freezer Cold Control” for
proper adjustment.
* Remove what is blocking the
air duct. See "Air Flow
Diagram".
* See below:
-- Replace.
16009103
O 1998 Maytag Corporation
SECTION 5. TROUBLESHOOTING 5-2
DISCONNECT THE UNIT FROM THE POWER SOURCE
CONDITION
POSSIBLE CAUSE
CORRECTION
Unit runs excessively. Refrigera-
tor compartment eventually
gets cold enough, but freezer
compartment is too cold.
-- AC circuit to fan open {lower
wattage readings).
* Not defrosting [lower wat-
tage readings than normal
and frost buildup or evapor-
ator).
-- Defective defrost timer,
defrost heater or defrost
terminal thermostat.
-- AC circuit to defrost system
open.
* Temperature control.
* High setting of temperature
contro! may result in these
conditions under very severe
environmental and usage
conditions (high humidity
and large number of freezer
and refrigerator door
openings).
* Sealed system.
-- Overcharge (high wattage
readings).
-- Undercharged [low wattage
readings).
=» Partial restriction.
+ Compressor motor defective.
Inefficient compressor (low
wattage readings).
* Condenser fan.
-- AC circuit to fan open (high
wattage reading).
-- Defective fan (high wattage
reading).
* Dirty or restricted condenser
due to particularly greasy,
dusty or significant pet traffic
in the home.
* Too much warm food placed
in refrigerator at one time.
* Air (no leak) in sealed system.
* Partial restriction in air duct
from freezer to refrigerator.
* Freezer cold control setting
too cold.
-- Refer to wiring diagrams and
check circuit.
* See below:
-- Replace detective part or parts.
-- Refer to wiring diagrams and
check circuit.
* See below:
* Check and adjust for proper
setting.
* See below:
-- Evacuate and recharge with
proper amount of refrigerant.
-- Check and see "Checking
Operating Pressure”,
-= Check and see "Checking
Operating Pressure”.
* Replace.
+ See below:
-- Refer to wiring diagrams and
check circuit.
=- Replace.
* Advise customer that it may
require cleaning periodically in
this environment.
* Advise customer,
* Replace drier and evacuate sys-
tem thoroughly, recharge with
proper amount of refrigerant.
* Check and remove what is
causing the restriction. See "Air
Flow Diagram".
* Adjust control for proper adjust-
ment, see "Freezer Cold Control."
16009103
© 1998 Maytag Corporation
SECTION 5. TROUBLESHOOTING 5.3
DISCONNECT THE UNIT FROM THE POWER SOURCE
CONDITION
POSSIBLE CAUSE
CORRECTION
Unit runs excessively. The refrig-
erator compartment and freezer
compartment both too cold
(normal wattage readings).
Unit runs excessively, but temp-
erature appears to be normal in
refrigerator.
Short running cycle, Refrig-
erator and freezer compart-
ments are cooling, but are not
cold enough.
* High usage of refrigerator
especially in high ambient.
* Setting of temperature
control too high for prevail-
ling environmental and
usage conditions,
* Defective temperature
control,
* Door seals may be leaking
* Problem is one of customer
usage and education with
severe environmental
conditions after confirmation
by a temperature recording.
Frequent door openings.
* Light may stay on constantly
in refrigerator.
* Inefficient compressor.
* Temperature control.
"= Defective control (normal
wattage readings).
-- Improper setting of temper-
ature control for prevailing
environmental and usage
conditions.
* Air circulation.
-- Ventilation around conden-
ser is blocked.
-- Condenser fan is defective.
-- Dirty or restricted condenser
due to particularly greasy,
dusty, or significant pet
traffic in the home.
-- AC circuit to condenser fan
is defective (high wattage
readings, unit may be cycling
on the overload protector)
* Compressor motor defective
(high wattage readings. Unit
may be cycling on the
overload protector).
* Advise customer.
* Reset control.
* Replace.
* Adjust door or replace door
gasket,
* Advise customer.
* Check light switch and
replace if needed. Check
door adjustment.
* Replace.
* See below:
* Replace.
* Reset control.
* See below:
-- Check and advise customer,
-- Replace.
-=- Advise customer that it may
require cleaning periodically
in this environment.
-= Refer to wiring diagrams and
check circuit.
* Replace,
-- Replace
16009103
© 1998 Maytag Corporation
SECTION 5. TROUBLESHOOTING 5-4
DISCONNECT THE UNIT FROM THE POWER SOURCE
CONDITION
POSSIBLE CAUSE
CORRECTION
Unit runs and cycles.
Refrigerator is normal, but
freezer is not cold enough
(normal wattage readings).
Run time normal. Refrigerator
compartment is not cold
enough, but freezer compart-
ment is normal or possibly
colder than normal. Sweating,
but refrigerator and freezer are
working normally.
* High resistance contacts or
too many broken wire
strands in compressor motor
AC circuit {high wattage
readings, unit may be
cycling on the overload
protector).
* Overload protector defective
(normal wattage readings).
* Too much warm food placed
in the unit at one time. May
be cycling on overload.
* Poor freezer door seal.
* Freezer air baffle control
setting too warm.
* Room temperature too cold.
* Excessive freezer door
openings.
* Too much warm food placed
in freezer at one time.
* Few refrigerator door open-
ings (low usage in low
ambient temperature).
* Check for refrigerant leaks.
* Air flow problem.
* interior sweating.
-- Bad door seals,
-- Excessive door openings
during hot humid weather.
-- Storage of excessive un-
covered liquids especially
if they are inserted into
refrigerator while warm.
* Check and replace broken part.
Refer to wiring diagrams and
check circuit.
* Replace.
* Advise customer.
* Adjust door or replace if
necessary.
* Reset control. For proper
setting see "Freezer Cold
Control".
* Advise customer.
* Advise customer.
* Advise customer.
« Advise customer,
* Repair or replace.
* Check and remove what is
causing the restriction.
See "Air Flow Diagram.”
” See below:
-- Replace,
-- Advise customer.
Advise customer.
16009103
© 1998 Maytag Corporation
5-5
SECTION 5. TROUBLESHOOTING
DISCONNECT THE UNIT FROM THE POWER SOURCE
CONDITION
POSSIBLE CAUSE
CORRECTION
Excessive dehydration of
food.
Excessively noisy, but operates
normally otherwise,
-- Void in insulation.
-- Overcharged.
-- Bad door seals.
-- Condenser fan not running.
* Condition requires covering
of food.
Sublimation of ice cubes is
normal in no frost freezers,
but should not be a problem
In these units equipped with
covered ice storage bins,
Refrigerator not level or
firmly setting on all four
corners.
Structural weakness in floor.
Compressor mounting
defective.
Poor tubing dress.
+
* Compressor operation
is noisy due to inherent
conditions.
Unit base mounting loose.
* Freezer or condenser fan is
noisy. May have defective
motor.
* Containers inside
refrigerator rattle.
-- Check and add insulation if
possible.
-- Evacuate system and recharge
with proper amount of
refrigerant.
* Replace.
-« Check fan motor and replace
part if needed.
* Advise customer.
* Advise customer.
* Level the unit, lower the level-
leveling legs if necessary to
make sure that unit is firmly on
the floor.
* Advise customer.
* Check and replace if necessary.
* Adjust tubes so they do not
touch.
* Advise customer.
» Tighten loose part or parts.
* Adjust pan or install foam pad
if necessary.
* Replace.
* Advise customer.
16009103
O 1998 Maytag Corporation
SECTION 5. TROUBLESHOOTING 5-6
SECTION 6. SPECIFICATIONS
21' Dispenser/Non Dispenser
Power Requirement 115 VAC 60 HZ
Operating Amps
{Max.) 71.2
Refrigerant Charge
R134A (oz) 4.25 oz
Compressor Oil
Charge (oz!) 250cc
Compressor
(BTU/hr.) 1007 (Matsushita)
Cabinet Liner High Impact
Laminated Polystyrene
Door Liners High Impact
Laminated Polystyrene
Cabinet & Divider
Insulation Foam
Founatin Heater
Ohms 4810
Watts 2.75
Temp Control Normal Setting
Cut / Out (+ 2°F) +34 °F
Cut / In (+ 2*F) +6°F
Condenser Fan Cooled
Capillary Tube
Length 103 inches
Diameter 0.028 inches !.D.
Defrost thermostat
Cut / Out (1 +3 * FJ + 38% Е
Cut / In (+11 F) + 15°F
Defrost Timer
Defrost Cycle 8 hrs.
Defrost Time 23 + 3 Min.
Defrost Heater
Ohms 26.5
Watts 500
Defrost Amps. (Max.) 4.3
PERFORMANCE TEST DATA
The laboratory test data in this chart was obtained under the following conditions: (1) power source of
115V AC, 60 Hz, [2) no door openings, (3) no load, (4) customer control(s) set at mid-point. The pressures
and wattages shown were taken: (a) during a normal running cycle, (b) with freezer temperature near 0°
F {refrigerator temperature, if applicable, near +37°F). {¢) no sooner than 5 minutes after compressor
start-up. In the home, measurements will vary depending upon environmental and usage conditions.
70°F 90° F 110° F
{Ambient) (Ambient) (Ambient)
% Operating Timer 25-35 45-55 70-80
KWH/24 Hours 1.10/1.40 1.75/2.40 2.85/3.65
Suction Pressure (psig) -3"Hg/0 -2" Hg/2 -1" Hg/5
High Side Pressure (psig) 100/130 150-180 190-210
Running Watts 145-165 150-170 155-185
16009103
SECTION 6. SPECIFICATIONS 6-1
© 1998 Maytag Corporation
23'/25' Dispenser/23' Non Dispenser
Power Requirement 115 VAC 60 HZ
Operating Amps
(Max.) 7.2
Refrigerant Charge
R134A (oz.) 4.50 oz
Compressor Oil
Charge (oz.) 250cc
Compressor
(BFU/hr.) 1007 (Matsushita)
Cabinet Liner High Impact
Laminated Polystyrene
Door Liners High impact
Laminated Polystyrene
Cabinet & Divider
Insulation Foam
Fountain Heater
Ohms 4810
Watts 2.75
Temp Control
Cut / Out (+ 2° F}
Normal Setting
+37°F
Cut / In (+2 F) +9°F
Condenser Fan Cooled
Capillary Tube
Length 103 inches
Diameter 0.028inches 1.D.
Defrost thermostat
Cut / Out (+3 * В) +43°F
Cut / In (+11* F +15 F
Defrost Timer
Defrost Cycle 8 hrs.
Defrost Time 23 + 3 Min.
Defrost Heater
Ohms 24.0
Watts 550
Defrost Amps. (Max.) 4.8
PERFORMANCE TEST DATA
The laboratory test data in this chart was obtained under the following conditions: (1) power source of
115V AC, 60 Hz. (2) no door openings, (3) no load, (4) customer control(s) set at mid-point, The pressures
and wattages shown were taken: (a) during a normal running cycle, (b) with freezer temperature near 0°F
(refrigerator temperature, if applicable, near +37° F), (ce) no sooner than 5 minutes after compressor start-
up. Inthe home, measurements will vary depending upon environmental and usage conditions.
70° F 90°F 110°F
(Ambient) (Ambient) (Ambient)
% Operating Time 25 - 35 45 - 55 70-80
KWH/24 Hours 1.15/ 1.70 2.00/2.75 3.30 / 4.20
Suction Pressure (psig) -3"Hg/0 -2" Hg / 2 -1" Hg/5
High Side Pressure (psig) 100-130 150-180 190/210
Running Watts 145 -165 150-170 155 - 185
16009103
SECTION 6. SPECIFICATIONS 6-2
© 1998 Maytag Corporation
21' Non Dispenser (Maytag)
Temp Control
Normal Setting
Power Requirement 115 VAC 60 HZ
Operating Amps
{Max.) 7.2
Refrigerant Charge
R134A (oz.) 4.25
Compressor Oil
Charge (oz.) 350 cc
Compressor
(BTU/hr) 950 (Embraco)
Cabinet Liner High Impact
Laminated Polystyrene
Door Liners High Impact
Laminated Polystyrene
Cabinet & Divider
Insulation Foam
Fountain Heater
Ohms NA
Watts NA
Cut / Out (+2 Е) -10%F
Cut / In (+2? В} +22° Е
Condenser Fan Cooled
Capillary Tube
Length 103 inches
Diameter 0.028 inches 1.D.
Defrost thermostat
Cut / Out {+ 3° F) +43°F
Cut /Inf+ 11 F + 15° Е
Defrost Timer
Defrost Cycle 8 hrs,
Defrost Time 23+ 3 Min.
Defrost Heater
Ohms 26.5
Watts 500
Defrost Amps. (Max.) 4,3
PERFORMANCE TEST DATA
The laboratory test data in this chart was obtained under the following conditions: (1) power source of
115V AC, 60 Hz. (2) no door openings, (3) no load, (4) customer control(s) set at mid-point, The pres-
sures and wattages shown were taken: (a) during a normal running cycle, (b) with freezer temperature
near 0° F (refrigerator temperature, if applicable, near + 372 Р), (с) no sooner than 5 minutes after
compressor start-up. In the home, measurements will vary depending upon environmental and usage
conditions.
70° Е 90° Е 110°F
(Ambient) (Ambient) (Ambient)
% Operating Time 25-35 45-55 70-80
KWH/24 Hours 1.10/1.40 1.75/2.50 2.85/3.65
Suction Pressure (psig) -3" Hg/0 -2" Hg/2 -1" Hg/5
High Side Pressure (psig) 100/130 150/180 190/210
Running Watts 145-165 150-170 155-185
16009103
SECTION 6. SPECIFICATIONS 6-3
© 1998 Maytag Corporation
23'/25' Dispenser/Non Dispenser (Maytag)
Power Requirement
115 VAC 60 HZ
Operating Amps
Temp. Control
Normal Setting
{Max.) 7.2
Refrigerant Charge
R134A (0z.) 4.50
Compressor Oil
Charge (oz.) 350cc
Compressor
(BTU/hr.) 950 (Embraco)
Cabinet Liner High Impact
Laminated Polystyrene
Door Liners High impact
Laminated Polystyrene
Cabinet € Divider
Insulation Foam
Fountain Heater
Ohms 4810
Watts 2.75
Cut / Out {+2° F} -10° Е
Сиё / т (+2 ° В) +22°F
Condenser Fan Cooled
Capillary Tube
Length 103 inches
Diameter 0.028 inches |.D.
Defrost thermostat
Cut / Out (+ 3 FJ +43 F
Cut /1n {x 11° F) +15° Е
Defrost Timer
Defrost Cycle 8 hrs,
Defrost Time 23 + 3 Min.
Defrost Heater
Ohms 24
Watts 550
Defrost Amps. (Max.) 4.8
PERFORMANCE TEST DATA
The laboratory test data in this chart was obtained under the following conditions: (1) power source of
115V AC, 60 Hz. (2) no door openings, (3) no load, (4) customer control(s) set at mid-point, The pres-
sures and wattages shown were taken: (a) during a normal running cycle, (b) with freezer temperature
near 0° F {refrigerator temperature, if applicable, near +37° F), (с) по sooner than 5 minutes after
compressor start-up. In the home, measurements will vary depending upon environmental and usage
conditions.
70° Е 90°F 110°F
(Ambient) (Ambient) (Ambient)
% Operating Time 25-35 45 - 55 70-80
KWH/24 Hour 1.15/ 1.70 2.00 / 2.75 3.04 / 4.20
Suction Pressure (psig) -3" Hg/0 -2" Hg /2 -1*Hg/5
High Side Pressure (psig) 100 / 130 150 / 180 190/210
Running Watts 145 - 165 150 - 170 155-185
16009103 SECTION 6. SPECIFICATIONS 6-4
© 1998 Maytag Corporation
23'/25' Dispenser/23' Non Dispenser (Maytag Premium)
Temp. Control
Normal Setting
Power Requirement 115 VAC 60 HZ
Operating Amps
(Max.) 7.2
Refrigerant Charge
RI34A (oz.) 4.50
Compressor Oil
Charge (oz.) 350 cc
Compressor
(BTU/hr.] 950 (Embraco)
Cabinet Liner High Impact
Laminated Polystyrene
Door Liners High Impact
Laminated Polystyrene
Cabinet & Divider
Insulation Foam
Fountain Heater
Ohms 4810
Watts 2.75
Cut / Out (£2° F) -10° Е
Cut / In (+2 FJ +22°F
Condenser Fan Cooled
Capillary Tube
Length 103 inches
Diameter 0.028inches |.D.
Defrost thermostat
Cut / Out (+3 FJ +43°F
Cut / In (+117 В) +15°F
Defrost Timer
Cycle Adaptive Defrost
Defrost Heater
Ohms 24.0
Watts 550
Defrost Amps. (Max.) 5.2
PERFORMANCE TEST DATA
The laboratory test data in this chart was obtained under the following conditions: (1} power source of
115V AC, 60 Hz. (2) no door openings, (3) no load, (4) customer control(s) set at mid-point, The pres-
sures and wattages shown were taken: (a) during a normal running cycle, (b) with freezer temperature
near 0° F (refrigerator temperature, if applicable, near +37° F), {c) no sooner than 5 minutes after
compressor start-up. In the home, measurements will vary depending upon environmental and usage
conditions.
70° F 90°F 110°F
(Ambient) (Ambient) (Ambient)
% Operating Time 25-35 45-55 70-80
KWH/24 Hours 1.15/1.70 2.00/2.75 3.40/4.20
Suction Pressure (psig) -3" Hg/0 -2" Hg/2 -1" Hg/5
High Side Pressure (psig) 100/130 150/180 190/210
Running Watts 145-165 150-170 155-185
16009103
SECTION 6. SPECIFICATIONS 6-5
© 1998 Maytag Corporation
16009103 SECTION 6. SPECIFICATIONS 6-6
© 1998 Maytag Corporation
SECTION 7. SCHEMATICS
16009103-01
DESCRIPTION ID NO,
FACTORY INSTALLED OR PROVISIONAL ICEMAKER MODELS RWD-1
SLIDE SELECTOR FOUNTAIN MODELS RWD-2
ALTERNATE VERSION OF SLIDE SELECTOR FOUNTAIN MODELS RWD-3
ELECTRONIC FOUNTAIN, DEFROST TIMER MAYTAG & JENN-AIR RWD-4
ELECTRONIC FOUNTAIN, ADAPTIVE DEFROST MAYTAG & JENN-AIR RWD-5
ELECTRONIC FOUNTAIN, DEFROST TIMER MAYTAG & JENN-AIR, RWDIF)-6
WATER FILTER MODELS
ELECTRONIC FOUNTAIN, ADAPTIVE DEFROST MAYTAG & JENN-AIR, RWDIF)-7
WATER FILTER MODELS
REFRIGERANT FLOW RD1
SECTION 7. SCHEMATICS
© 1999 Maytag Appliances Sales Company
7-1
SCHEMATIC - RWD1
DISCONNECT THE UNIT FROM THE POWER SOURCE
PICTORIAL WIRING DIAGRAM
ALLOW 10 PERCENT TOLERANCE ON ALL RESISTANCES
lr
——"
I< N © Tes
ICE MAKER я | Mae TEMPERATURE
| RECEPTACLE 6 VW “nyf+]-CONTROL |
= В So
(BI SEN
û я [CERTAIN
| С но а ¿ re |
— :
a x y |
"4 A THER |
|
|
BLACK ALM
== EE EE Ней — ——
frit
À
=<
FI
я
E
E
«=
E
|
CRISPER LIGHT
{CERTAIN MODELS
DEFROST
HEATER
—\ — ———
М
Y
ICE MAKER N
VALVE N
connector snd the flocking var an shown
And pul há Sones.
SCHEMATIC WIRING DIAGRAM
TO
de |
WH
so | КМА 1 ——— 3
Г OR ICE MAKER „IM LO, _WH
WATER
a VALVE
= {ON PROVISIONAL OR
ICE MAKER MODELS ONLY)
GY O
LIGHT ?
REFRIG. LIGHT(S)
SWITCH
RD paa Ona
CRISPER LIGHT
LIGHT SWITCH _»
RD 0 GY O WH 4
FREEZER LIGHT
TEMPERATURE (ON CERTAIN MODELS ONLY)
CONTROL
DEFROST WH
BLU TIMER a T
DEFROST HEATER 3
DEFROST THERMOSTAT + Ик
GNOSTIC CON 2 4
CHECK 240K OHMS
OR
po FREEZER FAN OR
BLU —
- a] OR
CONDENSER FAN
BLU OR — |
я $ [==
BC
00000 == J ORI
OVERLOAD ; RUN HPTC
COMPRESSOR CAPACITOR RELAY
(ON CERTAIN MODELS ONLY)
SECTION 7. SCHEMATICS
© 1999 Maytag Appliances Sales Company
16009103-01
SCHEMATIC - RWD2
DISCONNECT THE UNIT FROM THE POWER SOURCE
PICTORIAL WIRING DIAGRAM
ALLOW 10 PERCENT TOLERANCE ON ALL RESISTANCES
a 7 _
—
— —
—
„=. EE
—
— ——
=
| ICE MAKER
RECEPTACLE ~.
|
So
FOUNTAIN
HEATER
SELECTOR SWITCH #1
EXATE MN
SOLENCIO
`
ай
RUN > D/ SLACK AD; BLK}
CAPACITOR
{CERTAN MODELS
|
| OUT |
WIRE COOE |
WHITE (T1) ACTIVATOR COLOR | CODE
| , WHITE SWITCH RED AD
RED DELAY WHITE WH
| PINK. LINE BLACK BLK
K
CORD BLUÉ BLU |
| BLACK YELLOW Y
| BROWN | EN
CRISPER LIGHT ORANGE | oa
(CERTAN MODELS SAN; YEL ня
| ONLY| PRAY ay
PINK EX
ТАМ TN
| ™~ VIQLET | vio |
condenas TEN MO. DD Ihr COCIO
wi N Drum HT Denn the
conméttor arc Mk bochure hire eb ERC
and pul Hr SOriettor,
SCHEMATIC WIRING DIAGRAM
го TO 777
i Trower +
| CORD =
| FOUNTAIN HEATER
[ Ее = ны о он = = H
| RO/BLK =n S SS FOUNTAIN LIGHT wh
| Y mTanLoK “LIGHT SWITCH 7
| | switch WATER DISPENSER
| e MO. “TTY PTT RO
| р
| | Lockout )
| SWITCH + | вы ne |
| [ >
| } AC
| DOOR
; SOLENOID
EN
I FOUNTAIN DELAY
L vio CARD wH
ee lr EE Shr dein Em ES EEE EE EE Bal Eas Eas a — ia
RD CUBE SOLENOID ИН
+— — ¿CE MAKER =
+ WATER
LIGHT — VALVE
SWITCH > REFRIG. LIGHT(S)
GY YH
pue 0181-2400 M
) {ON CERTAIN MODELS ONLY}
CLC) A re rt )-— 400 AH
CRISPER LIGHT
RD LIGHT SWITCH A ЗУ O WH +
FREEZER LIGHT WH
(ON CERTAIN MODELS ONLY)
TEMPERATURE BLU {ory 1
SLU CONTROL | 3 a
OR =
; $
BLU
CONDENSER FAN | >
| BLU с
OR
12 IPTC
OVERLOAD COMPRESSOR y. CAPACITOR
(ON CERTAIN MODELS ONLY)
DEFROST HEATER
BLU Y a
I Y
DEFROST THERMOSTAT = DEFROST
ы AGNOE : ! TIMER
OR
BLU FREEZER FAN OR
RELAY
SECTION 7. SCHEMATICS 7-3
© 1999 Maytag Appliances Sales Company
16009103-01
TO TO
7-4
Power + power] À POWER] 4
CORD = CORD = CORD =
FOUNTAIN HEATER FOUNTAIN HEATER FOUNTAIN HEATER
MM | ARARARLRA la WH EL La WH
FOUNTAIN LIGHT WH ROBLE | has a a a a ma es a FOUNTAIN LIGHT ROBLE em me me mame me oe om i FOUNTAIN LIGHT vu
© Pose te, a O LIGHT SWITCH O |
SWITCH LIGHT SWITCH WATER DISPENSER SWITCH WATER DISPENSER
Lu u VALVE
Je]
LOCK OUT
SWITCH € (ен
FOUNTAIN DELAY
У 2 у EE | Base |
CRUSHER/CUBE/WATER/ CUBE/WATER/LIGHT/LOCK CUBE/WATER/LIGHT
LIGHT
TO TO A
= POWER] 4 POWER]
2 oc FOUNTAIN HEATER oe FOUNTAIN HEATER
= Ww RO/BLK me FOUNTAN LIGHT
= = uw | INTERLOCK LIGHT SWITCH |
m FLO
< e I >
' z A
OU Ze
|-- O O FOUNTAIN DELAY
< OO ce FOUNTAIN DELAY \ J
= N =- J V
T O CUBE/LIGHT CUBE
A
SECTION 7. SCHEMATICS
© 1999 Maytag Appliances Sales Company
16009103-01
DISCONNECT THE UNIT FROM THE POWER SOURCE
SCHEMATIC - RWD4
PICTORIAL WIRING DIAGRAM SCHEMATIC WIRING DIAGRAM
ALLOW 10 PERCENT TOLERANCE ON ALL RESISTANCES
— GR “— -
— A —
— == "m —
> RO > FOUNTAIN HEATER
ICE MAKER RD\WH o a ——
| RECEPTACLE. TEMPERATURE Ne | VVVVVwV 0
| ~~ CONTROL ~~ © RD,
| NE ! [inTERLOCK ACTUATOR SWITCH
| A > ods | SWITCH DOOR
| 7 LICHT | e UT) SOLENOID
| , kre wo [ov | „| Er SWITCH
мнт
pe M on .
| a p= < - ein: м Y ee | . 00000
TIMER | - *
|| AUGER HT FOUNTAIN | .
| MOTOR 2 inE INTERLOCK ] HEATER PD ,
| SOLENOID io |
ve Go —
N SOLENOID A FOUNTAIN LIGRT — |
| Le NTE (то LIGHT SW We
Ev ue | WATER DISPENSER VALVE —
| le RECVWHITE the SWITCH BOARD |
WH
| 00000]!
| ' | TN GA wh §
| wine Goo I WATER
| VALVE
| LL = ГО
E
Гане Га LIGHT REFRIG. LIGHT(S) |.
| SWITCH
BLACK ELK RD a" dials a LO — dis a EEE
FOUNTAIN ACTIVATOR = SLUE CU | SY = — =
| LIGHT SWITCH M NE Crew (ON CERTAIN MODELS ONLY)
| 1 CORD [eau | ая | nn Abm m
| CRISPER LIGHT
we Tar] rp LIGHT SWITCH _» A
| 4 | FREEZER LIGHT vu
, > | TEMPERATURE (ON CERTAIN MODELS ps
É NTROL
ALE oo ens o
| SI NF" | BL a
A e 1 . |
| AUD À | DEFROST HEATER
| \ | ` Y =
| Aa sel COMPRESSOR | > "e,
| | DEFROST
| 1 TIMER OR
WATER
\DISPENBER _.— pe BLU — FAN OR
VALVE <
ICE MAKER N
VALVE \ CONDENSER FAN
N ¿ BLU Q OR
N
N
Cos 10000 y 2 OR
RUN Ki
OVERLOAD comPRESSÓR % CAPACITOR RELAY
COMMÉCION amd Uta hocking lever is shown
and pull the connector. (ON CERTAIN MODELS ONLY)
SECTION 7. SCHEMATICS 7-5
© 1999 Maytag Appliances Sates Company
16009103-01
SCHEMATIC - RWD5
DISCONNECT THE UNIT FROM THE POWER SOURCE
PICTORIAL WIRING DIAGRAM
ALLOW 10 PERCENT TOLERANCE ON ALL RESISTANCES
rn, nt
=
<
ICE MAKER
RECEPTACLE ~~
|
|
| -
|
FOUNTAIN
HEATER
WHITE {T1)
BLUE
RECWHITE
РЕК
FOUNTAIN
LIGHT
CRISPER LIGHT
CONdensar Tar dior, Drasp the conneclor
with pour (Penis INBerioU Daiwa the
CONMICIOr amd ti Kg HAAN a EC
and pei Ih COMMCKN.
SCHEMATIC WIRING DIAGRAM
|
CORD
FOUNTAIN HEATE
Blo e oH
INTERLOCK ACTUATOR SWITCH WH
DOOR
. SOLENOID
e PRE ol er = | SWITCH
: АЕГХАЛНТЕ ° BOARD
9 VIOLET |
& BLACK = ооо
ols BLACK -
> PINK hi
CONTROL BOARD px
AUGER MOTOR
O ss
—— FOUNTAIN LIGHT
BLK WH,
wo WATER DISPENSER VALVE WH
LENOID
WH
Om di
i (ON CERTAIN MODELS ONLY)
Ley Qda a 0H
CRISPER LIGHT
) RO LIGHT SWITCH _— GY C WH
LRD FREEZER LIGHT
| (ON CERTAIN MODELS ONLY)
TEMPERATURE |
CONTROL
DEFROST HEATER
1 AALAÁLAAALASAMA | Y
DEFROST THERMOSTAT =
BLU FREEZER FAN OR
BLU
CONDENSER FAN
25 ICE MAKER ™ a wn
1 WATER
VALVE
ADAPTIVE
DEFROST
OR
OVERLOAD CcOMPRESSOR % CAPACITOR
(ON CERTAIN MODELS ONLY)
7-6
SECTION 7. SCHEMATICS
© 1999 Maytag Appliances Sales Company
16009103-01
SCHEMATIC - RWD(F)-6
DISCONNECT THE UNIT FROM THE POWER SOURCE
PICTORIAL WIRING DIAGRAM
ALLOW 10 PERCENT TOLERANCE ON ALL RESISTANCES
а... =.
ir “тт
—— o
a— ee
— RD —Ñ
—
pp
= _ oR ro on
| ICE MAKER :
L
| Ba
ne,
a,
=
TEMPERATURE -
CONTROL |
|
WH MD
BLU ” REF. LIGHT
| JCERTAIN
M7 LU PZA: LY) |
REF. |
LIGHT DEFROST
WM BLU TIMER
WHEL
я RD
OR
WH Y
FOUNTAIN |
HEATER > |
|
——
SELECTOR SWITCH MH
SELECTOR SYATCH 32
"
REF LIGHT!
INTERLOCK
SOLENOID SWITCH
LIGHT SWITCH
Do
BLA
a LOCK OUT
> SWITCH
5
geh ey
ACTIVATOR oo Le
SWITCH | “Eb AD
WHITE vw
H
ps Li BLACK BLK
BLUE
DEFROST
HEATER
Ls
TTL e] le —]]]]Ú——_—_ doo] —]]—]——__—];———]—] ]—Y]]]];—];]]——]——
CAPACITOR ~_
{CERTAIN MODELS ONLY)
“
To remove iht led conector Hom the
conden fan malo, grasp he connector
wilh your thumb insarnlad ba Hh
CONNECTION BN THE ACH MIA nl Shown
and pul] the SOND chor.
SCHEMATIC WIRING DIAGRAM
FREEZER LIGHT WH
(ON CERTAIN MODELS ONLY)
ee |
‘ INTERLOCK я
WATER
SWATCH DISPENSER VALVES
+ ан ль
= = = = =
+
VÉLECTON REFLECTOR
'
"
1
PATCH MH STOR о [
ЖЕНЫ т = к НЫ EEE die = ив EE EE ie EE EE EE ed —
—
RO
DOOR
SOLENOID
Lu a a —— у To
| CUBESOLENOD-4H | | |
ICE MAKER
4
RD ~
Ме
REFRIG, LIGHT(S)
RD (ON CERTAIN MODELS ONL Y) LIGHT!
RD O- LL... WHR INTERLOCK
TEMPERATURE CRISP SWITCH
CONTROL ER LIGHT
BLY =
BLU a
1
DEFROST HEATER
+ DAWA —— 1 de
2 y
DEFROST THERMOSTAT = SR 3
OR DIAGNOSTIC CONTINUITY DEF
y TER
BLU с
OR
OVERLO RUN L—JPIC
AD COMPRESSOR), capacitor | РЕНА
{ON CERTAIN MODELS ONLY)
7-7
SECTION 7. SCHEMATICS
mpany
16009103-01
© 1999 Maytag Appliances Sales Co
SCHEMATIC - RWD(F)-7
DISCONNECT THE UNIT FROM THE POWER SOURCE
CE MAKER
PICTORIAL WIRING DIAGRAM
ALLOW 10 PERCENT TOLERANCE ON ALL. RESISTANCES
a
——
ICE MAKER
RECEPTACLE ~~.
TURE
REF. LIGHT
(CERTAIN
MODELS
ONLY)
ADAPTIVE
FOUNTAIN
HEATER
EE EE Er Bees sees PPM GES EEE EE PET
o
SOLENOID REF LIGHT!
INTERLOCK
SWITCH |
|
OOOO
WHITE (T1)
BLUE
RECHTE
RECABLA
CRISPER LIGHT
(CERTAIN MODELS
ONLY)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
\
—
VALVE
SCHEMATIC WIRING DIAGRAM
FREEZER LIGHT
RDWH
(ON CERTAIN MODELS ONLY) FOUNTAIN HEATER
BLU
TE RL OC.
La | ACTU TOR SWITCH
— DOOR
ll WHITE [Ti
mue 7 = o
+
6 REDWHITE ode ER SWITCH
Fe REDBLK _BOARD
DH der) VIOLET -
æ BLACK . 00000}
i BLACK >
td PNK .
CONTROL BOARD px UGER MOTOR
BK) WH
— FOUNTAIN LIGHT
/BLU WH/ELU
RD
q ICE MAKER
= ICE MAKER VALVES
VIO WATER DISPENSER VALVES 4
Le CUBE SOLENOID WH
WH/BLU
| (ON CERTAIN MODELS ony | LIGHT/ м
LBP >= 49528 INTERLOCK
bre. CRISPER LIGHT SWITCH |.
TEMPERATURE 20
CONTROL
WHBLK,
ADAP
DEFROST HEATER OST
AMAMAAAA Y
DEFROST
+
SLU FREEZER FAN
BLU
CONDENSER FAN
R
OVERLOAD COMPRESSOR% CAPANITOR RELAY
OR
(ON CERTAIN MODELS ONLY}
7-8
SECTION 7. SCHEMATICS
© 1999 Maytag Appliances Sales Company
16009103-01
400 60 87 — 98/7
TT

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