TECHNICAL DATA
PCB TEST BUTTON FUNCTION
FAILURE DIAGNOSIS TABLE
Error Code Diagnosis
Part No. MBM61864305
DISCONNECT POWER CORD BEFORE SERVICING
IMPORTANT - RECONNECT ALL GROUNDING DEVICES
Main PCB
1) If any error is detected, LED number 1 and LED “OFF” will not be ON and the buttons TEMP
CONTROL, WATER LOCK and FILTER EXCHANGE will be disable.
All parts of this appliance capable of conducting electrical current are grounded. If grounding wires,
screws, straps, clips, nuts or washers used to complete a path to ground are removed for service, they
must be returned to their original position and properly fastened.
2) Remove power to unit to end test mode.
Test button
(1) FAILURE DIAGNOSIS FUNCTION
In error code, the R1 LED and LED “OFF” will remain turned OFF.
IMPORTANT NOTICE
NOTE: Test mode will not begin if an error code is displayed.
NOTE: During the Test mode, display board buttons will not operate.
• After finishing the Test mode, always unplug and replug in the refrigerator to reset to normal operation.
ELECTRICAL SPECIFICATIONS
Function
1) COMP, FFAN and CFAN ON.
2) DEFROSTING HEATER OFF
3) ALL DISPLAY ON
4) LAMP RELAY ON/OFF OPERATED BY
DOOR SWITCH.
ERROR CODES displayed on Frz. Temp. indicator lights.
: ON
ITEM
Failure of
Refrigerator Sensor
ERROR CODE
POSSIBLES
CAUSES
Cut or short
circuit wire.
COMPRESSOR
15 min ON/
15 min OFF
FREEZING
BLDC MOTOR
15 min ON/
15 min OFF
DEFROST
HEATER
Normal
Push the test button once
while in TEST MODE 1.
NOTE: To enter this mode,
Freezer Compartment must
be under 50°F (10°C).
Push the test button
once while in
TEST MODE 2.
Failure of Defrost
Sensor
Cut or short
circuit wire.
Normal
Normal
Failure of Defrost
Mode
Failure of BLDC
Fan Motor at
freezer
compartment.
1) COMP, FFAN and CFAN OFF.
2) DEFROSTING HEATER ON
3) DISPLAY LED (Please refer to the next
figure)
: OFF
Operate max 1 Hr
Return to normal state (compresor will delay
7 minutes for power ON)
* Demonstration MODE:
Cut or short
circuit wire.
Normal
Normal
Normal
When defrost
sensor does not
reach 50°F within 1
hour after starting
defrost.
Normal
Normal
Normal
If there is no fan
motor signal for
more than 115
seconds in operation
fan motor.
Normal
Temperature Control (Position: MID)....................................................................................................-6°F to +8°F
Defrost Control.........................................................................................................................................Automatic
Defrost Thermostat...........................................................................................................................................50°F
Electrical Rating: 115VAC, 60Hz....................................................................................................................1-5.2A
Maximum Current Leakage............................................................................................................................0.5mA
Maximum Ground Path Resistance.........................................................................................................0.14 Ohms
Energy Consumption...........................................................................................22 cu.ft. 422kWh/yr (Energy Star)
For models: 795.75312.900, 795.75313.900, 795.75319.900
: ON
No defrost
COOLING OFF light is ON
Failure of Room
Temperature
Sensor
The maximum time for
TEST1 is 5 min.
: OFF
PRODUCT OPERATION STATUS IN FAILURE
This information is intended for use by individuals possessing adequate backgrounds of electrical,
electronic and mechanical experience. Any attempt to repair a major appliance may result in personal injury
and property damage. The manufacturer or seller cannot be responsible for the interpretation of this
information, not can it assume any liability in connection with its use.
Press the TEMP CONTROL button until the OFF LED turns ON to activate this mode (After
selecting the Demonstration Mode it takes 10 seconds to be enable).
In this Status, all loads are OFF ( compressor, fans, heaters) only the lamps and the
display work normally. The refrigerator lamp automatic off function works normally and can
be demonstrated.
To exit of the Demonstration Mode press the TEMP CONTROL button and set the desired
temperature level. The device will reset after 10 seconds and the display will blink one time.
NO LOAD PERFORMANCE
Control Position: MID/MID
And ambient of:.................................................................70°F .....................................................................90°F
Fresh Food, °F......................................................33°F to 41°F ........................................................33°F to 41°F
Frozen Food, °F....................................................-4°F to +4°F .........................................................-4°F to +4°F
Percent Running Time..............................................25%-35% .............................................................45%-60%
REFRIGERATION SYSTEM
INSTALLATION
Minimum Compressor Capacity Vacuum........................21 in
Minimum Equalized Pressure
@ 70°F ......................................................49PSIG
@ 90°F ......................................................56PSIG
Refrigerant R134a.......................................................5.47 oz
Compressor...........................................................700BTU/hr
For proper air circulation, best cooling and
energy consumption results, maintain a
minimum distance of 2 inches (5.08cm) from
adjacent items and surfaces.
ICEMAKER
AIR FLOW
OFF
Normal
MIXED AIR
COLD AIR
CLEARANCE
AT TOP...........................................................2 in
AT SIDES.......................................................2 in
AT REAR........................................................2 in
AIR RETURN TO
EVAPORATOR
TEST SELECTOR
SWITCH
1. ICEMAKER
FREEZER
• Press and hold the Test button 3 seconds to activate.
• It operates in the following steps: Initial → Ice ejection → Water supply control steps
EVAPORATOR FAN
EVAPORATOR
CONTROL
HOT LOOP
EVAPORATOR
DRYER
COMPRESSOR
5
6
CONDENSER FAN
CONDENSER
1
FRESH FOOD
IMPORTANT
CIRCUIT DIAGRAM
DO NOT DESTROY
WIRING DIAGRAMS, SERVICE AND PARTS INFORMATION INCLUDED
REPOSITION TO ORIGINAL LOCATION
- H/BAR PART (H/BAR HEATER, DOOR S/W), CAPACITOR PART, FUSE PART, PLUG TYPE, COMPRESSOR EARTH PART, ICE & WATER VALVES, PILOT VALVE, S/W PART,
OPTICHILL ZONE,P.T.C ASSEMBLY, COMP' ACCESSORIES, WATER-TANK SENSOR ON CIRCUIT DIAGRAMS ARE SUBJECT TO CHANGE IN DIFFERENT LOCALITIES AND
ACCORDANCE WITH MODEL TYPE.
- N: NEUTRAL
FREEZER COMPARTMENT
PWB(PCB) ASSEMBLY, DISPLAY
DEFROST HEATER/F-FAN CONNECTOR (9 PIN)
F-FAN (GY,WH,PR)
D-SENSOR (BO,BO) / FUSE-M(RD,BN)
DEFROST (BK,BK)
1 2 3 4 5 6 7
BK BN RD PK YL BL PR
CON101
R/F-DOOR
S/W
ICE MAKER KIT
CONNECTOR (6 PIN)
{YL,RD,BL,GN/YL}
A
C
B
RT-SENSOR
DISPENSER
LED
A
B
Heater Sheath
WH BK BN RD
ALL LOADS (DISPLAY,
FANS, LIGHT, COMPRESSOR
ETC.), MUST BE CONNECTED
TO THE MAIN PCB.
6
PK YL BL
CON5
1
SB 2
BN 3
PR 4
GY 5
WH 6
7
8
9
10
C-FAN
F-FAN
R-DOOR/SW (5 PIN)
{PR,SB,GY,GY,RD}
CON8
CON4
CON7
PWB(PCB) ASSEMBLY, MAIN
CON1
3 2 1
11 10 9 8 7 6
BL
SB
WH
SB
V
POWER
SUPPLY
CORD
4 3 2 1
CON6
CON3
REFRIGERATOR COMPARTMENT
GY GY WH WH
PR
11 10 9 8 7 6 5 4 3 2 1
5 4 3 2 1
BN
BN
YL
YL
BL
BL
BL
SB
SB
BO
BO
WH
WH
BK
DISPENSER
S/W
DEF-SENSOR
R-SENSOR
C
DISPENSER
LED
CON2
5 4 3 2 1
BL
1
2
3
4
5
6
7
8
1 2
3 4 5 6 7
SB
BK
BN
BN
SB
BK
DISPENSER
VALVE
N
COMPRESSOR / POWER CORD
CONNECTOR (7 PIN)
{SB,GN/YL,BN,BL,BK,GN/YL}
Location: Machine Room
BL
F-LAMP
2
RD
4
5
3
6
S
DISPENSER LAMP/
DISPENSER SWITCH
(2 CONNECTOR X 2 PIN)
{WH,BK}, {SB,SB}
BK: BLACK
YL: YELLOW
SB: SKY BLUE
BN: BROWN
3
GN
RD
/YL
BL
(GN)
BL
BL
BL
COMP' EARTH
PART
P.T.C
COMP' ACCESSORIES
* ALTERNATIVE COMP'
ACCESSORIES
* P.T.C OPTION
*PLUG TYPE, ICE MAKER PART, CAPACITOR PART,
P.T.C, COMP' ACCESSORIES, DISPENSER LED,
AND COMP' EARTH PART ON CIRCUIT DIAGRAM ARE
SUBJECT TO CHANGE IN DIFFERENT LOCALITIES
AND MODEL TYPE.
H
BK
M
MC,MQ COMP'
WATER VALVE CONNECTOR
(2 PIN) {RD,BL}
Location: Machine Room
R-LAMP THERMOSTAT
OLP
I/MAKER W/VALVE
Cr
GN: GREEN
PK: PINK
BO: BRIGHT ORANGE
PR: PURPLE
EG COMP'
3
2
CR
BL
N
4
5
4
6
3
6
2
5
GY: GRAY
WH: WHITE
BL: BLUE
RD: RED
BK
OLP
1 RD
M
ICE MAKER
MOTOR
CON1
2 BK
1 WH
HEATER,
SHEATH
CON2
1 WH
CON3
1 WH
A GY
PK
ICE MAKER PART
G
2
V
PWB (PCB) ASSEMBLY, ICE MAKER
F
E
CON4
C-FAN CONNECTOR (4 PIN)
{SB,BN}
Location: Machine Room
2 WH
1 WH
CON5
ICE SENSOR
GN/YL
(GN)
BK
POWER FUSE-M
(98 C)
S/W
CAPACITOR PART
HEATER
SHEATH
GN/YL
(GN)
Cs
L
DISPLAY CONNECTOR(12 PIN)
{BN,RD,PK,YL,BL,PR,BK,WH,WH,
GN/YL}
CON6
D C
2 BL
1 BK
FF-LIGHT
CONNECTOR (4 PIN)
{BL,PR}
VALVE
{WH,BL}
FUSE-M
F/R DOOR
S/W
B GY
PTC
L
COMBO KIT
(PTC+OLP)
GN/YL: GREEN/YELLOW
BL/WH: BLUE/WHITE
BK/WH: BLACK/WHITE
RD/WH: RED/WHITE
4
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