SERVICE and PARTS MANUAL
SERVICE and PARTS
MANUAL
SD3 Series
SD3
ML-130232
F45576 (1015)
SD3 Series
TABLE OF CONTENTS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MODELS COVERED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REFERENCE MATERIAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
POWER-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FILL CYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BOOSTER TEMPERATURE CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BOOSTER TEMPERATURE CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
READY MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RUNNING A CYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHANGING CYCLE TIME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHANGING CYCLE TIME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
3
3
3
4
4
4
4
4
5
5
5
5
5
5
SERVICE PROCEDURES AND ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
CONTROL BOARD PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SERVICE PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
TANK HEATER - TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
BOOSTER HEATER - TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
PUMP MOTOR - TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
THERMISTOR - TEST 1QTM, 2QTM & 3QTM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
QUICK CHECK USING SERVICE DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
MEASURING THERMISTOR RESISTANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
TRANSFORMER 1T - TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
TRANSFORMER 2T - TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
DELIMIMG PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
DOOR TENSION ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
ELECTRICAL OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMPONENT FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMPONENT LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CONTROL BOARD / RELAY BOARD LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CONTROL AND RELAY BOARD LEDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WIRING DIAGRAM - 1 PHASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WIRING DIAGRAM - 3 PHASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16
16
17
18
19
21
23
24
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
QUICK REFERENCE CHART - ELECTRIC HEAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
CONTROL BOARD AND RELAY BOARD LEDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
CONTROL BOARD AND RELAY BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
OPERATING CONDITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
NO DISPLAY AFTER ON KEY IS PRESSED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
NO FILL OR RINSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
LONG FILL TIME (6 MINUTES) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
NO WASH CYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
NO TANK HEAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
SERVICE DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
SERVICE DIAGNOSTICS CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
OUTPUT TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
VERIFY CONTROL BOARD IS CONFIGURED AS AN SD3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
ERROR CODE CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
TROUBLESHOOTING TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
PARTS CATALOG ............................................................................................................................................. 36
F45576 (1015)
© COMPETITIVE 2015
Page 2 of 37
SD3 Series - GENERAL
GENERAL
INTRODUCTION
This manual is applicable to the models and ML
numbers listed on the cover page. Procedures apply
to all models unless specified otherwise.
MODELS COVERED
SD3-H: Single water inlet. Incoming water of 110°F
minimum is heated by a booster tank mounted on the
machine. The machine is configured for a 70°F rise
depending on incoming water temperature. The
booster maintains water temperature to be used for
180°F final rinse.
SD3-P: Single water inlet. Water temperature to
machine must be a minimum of 180°F for the final
rinse. This water is provided by the customer external
of the machine. The SD3-P has the option to be
reprogramed to change from plain to chemical.
•
Low water protection.
•
One incoming plumbing connection to
dishwasher through an electrically operated
valve.
•
The fill/rinse valve is installed prior to the 3.6
gallon booster tank.
•
Supply flowing water pressure 20 ±5 psi.
•
Provides a minimum 70°F rise with incoming
water temperature of 110°F for a final rinse
temperature of 180°F at 20 psi (flowing).
•
The dishwasher, with the booster, can operate at
full capacity with back-to-back cycles (SD3).
•
SD3 machines are available in several operating
voltages for single or three phase operation.
SPECIFICATIONS
•
Operates as an atmospheric booster (SD3 with
built-in booster).
ELECTRICAL SPECIFICATIONS
Model
SD3 with Electric
Heat
Booster Ampacity
Ratings 8.5KW
Optional SD3 Single
Point Electrical
Service Connection
Electrical Specs
Rated Amps
Minimum Supply
Circuit Conductor
Ampacity
Maximum
Overcurrent
Protective Device
208-240/60/1
43.0
50
50
208-240/60/3
24.9
30
30
480/60/3
13.4
15
15
208-240/60/1
35.4
50
50
208-240/60/3
20.4
30
30
480/60/3
10.2
15
15
208-240/60/3
45.4
60
60
480/60/3
23.7
30
30
WATER SUPPLY REQUIREMENTS
Model
Temperature
(minimum)
SD3 -P (Plain)
140°F
SD3-H (Hot)
110°F
Flowing
Pressure
20±5 psi
Hardness
grains/gal.1
Under 3
Page 3 of 37
1 to 3
Chlorides ppm
Water Usage
≤ 50
0.74 gal/rack
F45576 (1015)
SD3 Series - GENERAL
WATER SUPPLY REQUIREMENTS
Model
Temperature
(minimum)
Flowing
Pressure
Hardness
grains/gal.1
Chlorides ppm
Water Usage
1 Water
hardness below 4 grains/gal requires water treatment to reduce potential corrosion. Hardness
above 6 grains/gal should be treated by water conditioner, water softener or in-line treatment.
MACHINE CYCLE TIMES AND CAPACITY (RACKS / HOUR)
Model
Cycle
Settings
1
All
2
4
Time in Seconds (maximun time settings)
1st 1/2 Fill
2nd 1/2 Fill
Variable up
to 150
Variable
75-120
Wash
Duration1
Dwell2
Rinse2
Sani-Dwell2
2 (2-15)
10 (10-35)
7 (7-15)
38 (38-99)
120
360
1 Machine
cycles 1, 2, and 4 are selected via the keypad. Cycle 1 wash duration is adjustable through the
SERVICE PROGRAMMING mode, where the wash time can be adjusted to values above NSF minimums.
2 Dwell,
rinse and sani-dwell times are adjustable to values above NSF minimums. Times chosen for each
parameter will apply to all cycle selections.
REFERENCE MATERIAL
For replacement parts, refer to SD3 Catalog of
Replacement Parts.
Refer to Lubrications Manual F-20067 for current
values.
For operation and care instructions, refer to
Operator's Manual.
POWER-UP
On power-up, the control board will perform a
self-test. Once the control successfully
completes and exits the selftest routine, the
machine is ready for operation.
chamber door is opened any time after the float switch
is closed, the fill cycle will be terminated, even if
second part of fill did not complete. When the chamber
door is closed after the float switch is closed, a wash
cycle will begin.
If the float switch does not close after the maximum
allowed time for the first half of fill (150 seconds), an
[ E2 ] error code will be displayed. To clear an error
from the display, cycle power by turning the machine
off then back on. When the float switch closes, the
controls will begin regulating tank heat. When the fill
cycle is complete, the FILL icon turns off while the tank
temperature continues to be displayed. The machine
will continue heating the tank as required to reach and
maintain the tank heat set point.
BOOSTER TEMPERATURE
CONTROL
FILL CYCLE
The fill consists of two parts. The first part of the fill is
defined as the time required to fill the tank until the
float switch 1FS closes (150 seconds maximum). The
time duration for the second part of the fill is equal to
the time elapsed for the first part of fill multiplied by
1.25 (75 seconds minimum, 120 seconds maximum).
The chamber door must be closed for the fill/rinse
solenoid (1SOL) to be energized and begin filling the
tank. Opening the chamber door before the float
switch is closed will de-energize the fill/rinse solenoid
1SOL suspending the fill cycle. When the chamber
door is closed, the fill cycle will continue. If the
F45576 (1015)
Booster Temperature Control
NOTE: The Rinse Assurance is on by default for an
SD3. Adjustments to this selection can be made by
the service technician through CONTROL BOARD
PROGRAMMING.
Once the initial fill is complete, if no cycles are run, the
booster has eight minutes to reach its set point. If the
booster does not reach temperature within the eight
minute timeout, an error code [ EE ] will be displayed.
To clear an error from the display, cycle power by
turning the machine off then back on.
Page 4 of 37
SD3 Series - GENERAL
The control board is programed to cause the booster
heater to turn on at the beginning of every rinse cycle
and turn off at the end of the cycle. This occurs even
if the booster water temperature meets or is above the
booster temperature set point. Should the booster
temperature be below the set-point, the booster
heater will remain energized until set-point is
achieved.
If the booster water temperature is below the booster
temperature set point at the end of a wash cycle, and
Rinse Assurance is enabled, the wash cycle will be
extended (maximum total wash time is one minute).
The extended wash time allows the booster water
temperature to reach set point before the rinse cycle
begins.
The tank float also controls the heat for the booster. If
the float is down (float switch open), the booster heater
circuit will be disabled. If the float is up (float switch
closed), the control board will regulate the booster
heat as needed.
the default settings. Refer to SERVICE
PROGRAMMING for procedures on altering the preprogrammed times of cycle one.
NOTE: Cycle 1's times cannot be adjusted below the
NSF minimums.
LUBRICATION
Component
Lubrication Type
Impeller O - Ring
P 80® Rubber Lube
Booster Heater Screws
Never Seez
All NPT Fittings
Pipe Thread Sealant,
Locktite 565
High-Limit Thermostat
1TAS
Thermal-Joint Compound
High-Limit Thermostat
3TAS (Booster Option.)
Thermal-Joint Compound
TOOLS
READY MODE
When a cycle is not in progress, the machine will be
maintained in a ready state. In the ready state, tank
and booster temperatures are maintained. If water
level drops below the tank float in ready mode, tank
and booster heating elements are de-energized and a
fill cycle will be initiated the next time the chamber
door is opened and then closed. An error code [ Ed ]
will be displayed indicating the machine has a slow
leak. To clear an error from the display, cycle power
by turning the machine off then back on.
•
Standard set of hand tools.
•
VOM with A/C current tester (any quality VOM
with a sensitivity of at least 20K ohms per volt can
be used).
•
Anti Static Kit
•
Temperature Tester.
•
Clamp on type amp meter for meausring heating
element current draw.
RUNNING A CYCLE
After the fill cycle is complete, a cycle is initiated by
raising and lowering the chamber door.
NOTE: If the chamber door is raised any time during
a cycle, the wash pump and rinse solenoid will
deenergize. The control will start a new cycle once the
chamber door is closed.
CHANGING CYCLE TIME
Changing Cycle Time
Wash cycle duration can be selected at any time
whether the machine is at rest or in a cycle. Pressing
the CYCLE button will step through the preprogrammed timed cycle selections 1, 2, or 4. The
selected cycle time will be retained by the control even
when power is removed and turned back on.
Cycle selection 1 is programmable allowing the wash,
dwell, rinse, and sani-dwell times to be changed from
Page 5 of 37
F45576 (1015)
SD3 Series - SERVICE PROCEDURES AND ADJUSTMENTS
SERVICE PROCEDURES AND ADJUSTMENTS
CONTROL BOARD
PROGRAMMING
Certain procedures in
this section require electrical test or
measurements while power is applied
to the machine. Exercise extreme
caution at all times and follow Arc Flash
procedures. If test points are not easily
accessible, disconnect power and
follow Lockout/Tagout procedures,
attach test equipment and reapply
power to test.
NOTE: The control board is mounted in the machine
in such a way that the printing is upside down. The
control board will be depicted in the manual as it is
found on the machine for consistency purposes.
Fig. 1
4.
Program the control board using the information
retrieved from the board being replaced and the
information found in CONTROL BOARD
PROGRAMMING table.
5.
Use the SELECT switch on control board to
select the feature and the (up arrow) switch to
change the feature settings.
NOTE: Prior to removing board from machine, check
and note the settings of the programmable variables
as outlined under SERVICE PROGRAMMING when
possible. When unable to access Service
Programming, check with establishment manager to
determine customer control settings.
NOTE: The replacement control board will come
programmed as a different model. Step through this
procedure to set up the control board to function as an
SD3.
1.
Remove FRONT COVER.
2.
Open control door.
3.
Carefully short the two FACTORY pins of J5
together and press the ON key on switch
membrane keypad (user controls on front of
machine). Keep short across pins of J5 until
display indicates [ 88 ], then remove the short.
A.
Display will cycle between [ SET ty ] and
[ Sd, fd, GL, AS, HL, or St ].
NOTE: SD3 machine type designation is [ St ].
F45576 (1015)
Fig. 2
NOTE: The display will alternate between the feature
and setting.
6.
Press OFF key on switch membrane keypad
(user controls on front of machine) to store
selections.
7.
Program the variables. Refer to SERVICE
PROGRAMMING.
8.
Close control door.
9.
Check machine for proper operation by running
one fill cycle and two normal cycles.
Page 6 of 37
SD3 Series - SERVICE PROCEDURES AND ADJUSTMENTS
CONTROL BOARD PROGRAMMING
Feature Description
Display
Setting
Standard 1
Not Applicable in SD3
Machine Type
ty
ID
tc
Manual Temperature Control
tr
Flow Options
FL
Diagnostics override
dG
Shorted water thermistor
detections
fd
Not Applicable in SD3
GL
Not Applicable in SD3
AS
Not Applicable in SD3
HL
SD3
St
Hot SD3 with Booster
H
Chemical
C
Plain SD3 No Booster
P
Yes2
yE
No
no
These parameters are not available for SD3. If either one of
these are displayed, return to MachineType and select [ St ].
Show Error Codes2
1
Disable Error Codes
2
These parameters are not available for SD3. If either one of
these are displayed, return to MachineType and select [ St ].
SP
1 Default
2 This
Sd
Not Applicable in SD3
Id
Rinse Assurance
Display
setting.
feature is not available on SD3 - Plain or Chemical models.
SERVICE PROGRAMMING
Certain procedures in
this section require electrical test or
measurements while power is applied
to the machine. Exercise extreme
caution at all times and follow Arc Flash
procedures. If test points are not easily
accessible, disconnect power and
follow Lockout/Tagout procedures,
attach test equipment and reapply
power to test.
Page 7 of 37
F45576 (1015)
SD3 Series - SERVICE PROCEDURES AND ADJUSTMENTS
NOTE: Service programming mode can be accessed by two methods.
Entering Programming Mode When Machine is OFF
1.
Remove front cover.
2.
Open control door.
3.
Press and hold the PROG switch on the control board, then press the ON key on the switch membrane keypad
(user controls on front of machine) to enter programming mode.
A.
Release PROG switch when display shows [ 88 ].
Entering Programming Mode When Machine is ON (Tank Temperature Displayed and Fill Cycle is Complete)
1.
Remove FRONT COVER.
2.
Open control door.
3.
Press and hold the PROG switch on the control board, then press the CYCLE key on the switch membrane
keypad (user controls on front of machine) to enter programming mode.
A.
Release PROG switch when display shows [ 88 ].
Programming Mode
NOTE: Refer to SERVICE PROGRAMMING CHART.
1.
Change each function setting by pressing the (up arrow) switch on board until correct value is entered.
2.
Press the SELECT switch on the board to enter next function.
NOTE: Pressing the OFF key on display keypad at any time during programming will store your selections.
Fig. 3
3.
To exit service programming and store your selections do one of the following:
A.
Press OFF key (machine will shut down).
B.
Press PROG switch (machine will stay on with tank temperature being displayed).
C.
Close control door.
D.
Check for proper operation by running one fill cycle and two normal cycles.
F45576 (1015)
Page 8 of 37
SD3 Series - SERVICE PROCEDURES AND ADJUSTMENTS
SERVICE PROGRAMMING CHART
PARAMETER
Tank Temperature
Booster Temperature (Hot
Machines Only
Cycle 1 Wash Time
Dwell Time (all cycles)
Rinse Time (all cycles)
DISPLAY
ICONS
SET
WASH
SET
RINSE
SET
WASH
SET
SET
RINSE
PROGRAMMING
VARIABLES
DEFAULT
Chemical Models:
120-150°F
130°F
Hot Models: 150-170°F
158°F
Plain Models: 150-170°F
158°F
Programmed
Temperature
180 - 195°F (Hot Models
Only)
186°F
Programmed Wash
Time
38 - 99 seconds
38 sec.
[1dt] Alternating with
Programmed Dwell
Time
2 - 15 seconds
2 sec.
Programmed Rinse
Time
10 - 15 seconds
10 sec.
NUMERIC VALUE
Programmed
Temperature
SD3 -H and -P
Sani-dwell Time (all cycles)
SET
°F or °C
SET
Display
°F or °C
Idle Shut Down Time
SET
IdL
[dt] Alternating with
Programmed SaniDwell Time
No Numeric Display
7 sec.
7 - 15 seconds
SD3 - C
dE = disabled; 1 - 15
seconds
dE
°F,° C
°F
[IdL] Alternating with
dE = 0 = disabled; 0 - 12
Programmed Shut
(hours)
Down Time in Hours
6
Empty Water Level Detection 1
SET
Present Sensitivity
Setting
20 - 80
60
Clean Float Setting 1
SET
Present Sensitivity
Setting or [dE]
0 - 18
15
1 Although
parameter is adjustable, this setting has no affect on the float switch circuit of SD3 machines.
Page 9 of 37
F45576 (1015)
SD3 Series - SERVICE PROCEDURES AND ADJUSTMENTS
TANK HEATER - TEST
Certain procedures in
this section require electrical test or
measurements while power is applied
to the machine. Exercise extreme
caution at all times and follow Arc Flash
procedures. If test points are not easily
accessible, disconnect power and
follow Lockout/Tagout procedures,
attach test equipment and reapply
power to test.
NOTE: Tank must be filled with water (float switch
closed) in order to test tank heat circuit.
Fig. 4
6.
While the TANK HEAT (AM) LED is on, verify that
the tank heat contactor 2CON is energized.
1.
Remove FRONT COVER.
2.
Open control door.
If contactor is not energized, check for
120VAC across coil.
3.
Apply power to machine.
1)
A.
4.
Measure incoming voltage across line side
of the tank contactor 2CON and verify it
matches machine specifications on data
plate.
B.
Verify the following conditions are met.
A.
Tank is full of water.
B.
Float switch 1FS is closed.
C.
Wash tank thermistor 1QTM is good, not
open or shorted.
D.
5.
A.
1)
Voltage across all legs on load side of
contactor.
2)
Current flow through all elements of
heater.
Voltage/Phase
Amperes
Power (Watts)
208/60/1
26A
5.4kW
240/60/1
30A
7.2kW
208/60/3
15A
5.4kW
240/60/3
17.3A
7.2kW
480/60/3
6A
5kW
There is a demand for heat (tank water
temperature is below set point).
Shorting J8 terminals together without
having water in the tank may result in damaging the
tank heater.
7.
If temperature control circuit is not calling for
heat (relay board TANK HEAT LED not lit),
run machine through a cycle to activate tank
heater. Alternately, short the relay board
TANK HEAT (AM) -J8 pins together to
energize the tank heater.
F45576 (1015)
If contactor is energized, check:
RATED TANK HEATER ELEMENT CURRENTS
Turn machine on.
A.
If 120VAC is not present, check high
limit thermostat 1TAS.
Page 10 of 37
If the current reading on any of the elements is
not correct:
A.
Check the contacts of contactor 2CON.
B.
Check the wash tank heater element
resistance.
INDIVIDUAL TANK ELEMENT RESISTANCE
Voltage
Cold Resistance
208 - 240V
21.7 - 25.1Ω
480V
105 - 121.7Ω
SD3 Series - SERVICE PROCEDURES AND ADJUSTMENTS
BOOSTER HEATER - TEST
Certain procedures in
this section require electrical test or
measurements while power is applied
to the machine. Exercise extreme
caution at all times and follow Arc Flash
procedures. If test points are not easily
accessible, disconnect power and
follow Lockout/Tagout procedures,
attach test equipment and reapply
power to test.
NOTE: Tank must be filled with water (float switch
closed) in order to test booster heat circuit.
1.
Measure incoming voltage and verify it matches
machine specifications.
2.
Remove FRONT COVER.
3.
Open control door.
4.
Apply power to machine and booster.
A.
5.
6.
Fig. 5
7.
While the BOOSTER LED is on, verify that the
booster contactor 3CON is energized.
A.
If contactor is not energized, check for
120VAC across coil.
1)
B.
Measure incoming voltage across line side
of the tank contactor 2CON and booster
contactor 3CON. Verify voltages match
machine specifications on data plate.
Verify the following conditions are met.
If 120VAC is not present, check high
limit thermostats 2TAS and 3TAS.
If contactor is energized, check:
1)
Voltage across all legs on load side of
contactor.
2)
Current flow through all elements of
heater.
BOOSTER HEATER ELEMENT CURRENTS
A.
Tank is full of water.
Voltage/Phase
Amperes
Power (Watts)
B.
Float switch 1FS is closed.
200/60/1
45.1A
9kW
C.
Booster thermistor 3QTM is good, not open
or shorted.
208/60/1
40.7A
9.8kW
240/60/1
54.2A
13kW
D.
There is a demand for heat (booster water
temperature is below set point).
200/60/3
26A
9kW
208/60/3
27.2A
9.8kW
240/60/3
31.3A
13kW
480/60/3
13.6A
13kW
Turn machine on.
Shorting J9 terminals together without
having water in the tank may result in damaging the
tank heater.
A.
8.
If temperature control circuit is not calling for
heat (relay board BOOSTER LED not lit),
run machine through a cycle to activate
booster heater. Alternately, short the relay
board pins BOOSTER - J9 together to
energize the booster heater.
Page 11 of 37
If the current reading on any of the elements is
not correct:
A.
Check the contacts of contactor 3CON.
B.
Check the booster heater element
resistance.
INDIVIDUAL ELEMENT RESISTANCE
Voltage
Cold Resistance
200 - 208V
9.0 - 10.5Ω
220 - 240V
12 - 13.9Ω
380 - 415
30.2 - 34.9Ω
440 - 480V
48.2 - 55.7Ω
F45576 (1015)
SD3 Series - SERVICE PROCEDURES AND ADJUSTMENTS
INDIVIDUAL ELEMENT RESISTANCE
Voltage
Cold Resistance
575 - 600V
75.3 - 87.0Ω
THERMISTOR - TEST 1QTM, 2QTM
& 3QTM
PUMP MOTOR - TEST
Certain procedures in
this section require electrical test or
measurements while power is applied
to the machine. Exercise extreme
caution at all times and follow Arc Flash
procedures. If test points are not easily
accessible, disconnect power and
follow Lockout/Tagout procedures,
attach test equipment and reapply
power to test.
Certain procedures in
this section require electrical test or
measurements while power is applied
to the machine. Exercise extreme
caution at all times and follow Arc Flash
procedures. If test points are not easily
accessible, disconnect power and
follow Lockout/Tagout procedures,
attach test equipment and reapply
power to test.
NOTE: The temperature/resistance characteristics
are the same for all the thermistors used in SD3.
NOTE: The pump motor for all machines is rated at 2
H.P. and has thermal overload protection.
NOTE: The resistance of each thermistor can be
measured by removing the plug connected to J2 on
the control board.
1.
Remove FRONT COVER.
1.
Remove FRONT COVER.
2.
Open control door.
2.
Open control door.
3.
Apply power and measure incoming voltage
verifying it meets machine requirements.
Quick Check Using Service Diagnostics
4.
Turn machine on and take an amperage reading
of one of the tank heater leads connected to
contactor (2CON).
1.
Enter Service Diagnostics mode.
A.
Apply power. With machine off, press and
hold the PROG and SELECT switches on
control board and press and release the ON
key on the switch membrane keypad.
B.
Continue to hold in on the PROG and
SELECT switches until display shows [ 88 ]
then release both switches.
SD3 MOTOR CURRENTS (Maximum)
Voltage/phase
Amps
208/60/1
11.0A
240/60/1
10.6A
208/60/3
5.6A
240/60/3
5.4A
480/60/3
2.7A
NOTE: XXX represents the actual water temperature.
C.
Press the SELECT switch repeatedly until
[ WASH XXX°F (°C) ] which is tank water
temperature.
NOTE: Current consumption for a normally operating
pump and motor assembly will be less than the
amperage values listed.
D.
Press the SELECT switch once to display
[ XXX°F (°C) RINSE ] which is rinse water
temperature.
5.
E.
Press the SELECT switch once to display
[ WASH XXX°F (°C) RINSE ] which is
booster water temperature.
If motor current exceeds those values listed in the
table, inspect pump for blockage causing a
locked-rotor condition.
A.
6.
If blockage is not present, replace motor.
If current in one phase of a three phase motor is
low or missing, also inspect incoming line
service, contactor 1CON and other related
circuitry to missing phase.
F45576 (1015)
Measuring Thermistor Resistance
1.
Page 12 of 37
Disconnect the plug from J2 on the control board.
SD3 Series - SERVICE PROCEDURES AND ADJUSTMENTS
TEMPERATURE VS. RESISTANCE FOR 1QTM,
2QTM AND 3QTM THERMISTORS
Fig. 6
2.
Refer to the following photograph to locate the
thermistor leads of interest.
DEGREE (°F)
RESISTANCE (Ω)
190°F
8.2 kΩ
200°F
6.9 kΩ
210°F
5.8 kΩ
250°F
2.9 kΩ
257°F
2.626 kΩ
284°F
1.734 kΩ
290°F
1.6 kΩ
TRANSFORMER 1T - TEST
Certain procedures in
this section require electrical test or
measurements while power is applied
to the machine. Exercise extreme
caution at all times and follow Arc Flash
procedures. If test points are not easily
accessible, disconnect power and
follow Lockout/Tagout procedures,
attach test equipment and reapply
power to test.
NOTE: Transformer 1T steps down incoming line
voltage to 120VAC for use by the machine's control
components.
Fig. 7
PINS FOR THERMISTORS AND FLOAT
SWITCH
1.
Remove FRONT COVER.
Refer to the table that follows for thermistor
resistance values.
2.
Open control door.
3.
Remove right side cover.
TEMPERATURE VS. RESISTANCE FOR 1QTM,
2QTM AND 3QTM THERMISTORS
4.
Verify transformer is strapped correctly by
comparing connection wiring points on
transformer with machine data plate.
3.
DEGREE (°F)
RESISTANCE (Ω)
70°F
120 kΩ
80°F
91 kΩ
90°F
72 kΩ
100°F
55 kΩ
110°F
44 kΩ
120°F
34.5 kΩ
130°F
28 kΩ
140°F
22.5 kΩ
150°F
18 kΩ
160°F
14.5 kΩ
170°F
12 kΩ
180°F
10 kΩ
Fig. 8
Page 13 of 37
F45576 (1015)
SD3 Series - SERVICE PROCEDURES AND ADJUSTMENTS
5.
Connect power to machine.
6.
Verify incoming AC line voltage at the line service
connection point.
7.
Verify incoming voltage is present to primary side
of transformer 1T.
8.
Measure output AC voltage across secondary
windings of transformer. Voltage should be
approximately 120VAC.
A.
If voltage is present, transformer is
functioning.
B.
If output voltage is not present, verify
transformer wiring connections.
1)
C.
Fig. 9
If connections are correct, replace
transformer.
A.
If output voltage is low, disconnect power
from machine.
1)
Disconnect one side of the secondary.
2)
Apply power to machine.
3)
Check output voltage across
secondary windings.
a.
If voltage is still low, replace
transformer.
b.
If voltage is approximately
120VAC, check components and
related wiring connected to the
secondary.
If 120VAC is not present, check fuse F2 on
relay board.
1)
6.
If fuse is good, perform
TRANSFORMER 1T - TEST.
Measure output AC voltage across secondary
windings of transformer. Voltage should range
between (11.5 - 16VAC).
TRANSFORMER 2T - TEST
Certain procedures in
this section require electrical test or
measurements while power is applied
to the machine. Exercise extreme
caution at all times and follow Arc Flash
procedures. If test points are not easily
accessible, disconnect power and
follow Lockout/Tagout procedures,
attach test equipment and reapply
power to test.
1.
Remove FRONT COVER.
2.
Open control door.
3.
Remove right side cover.
4.
Connect power to machine.
5.
Verify incoming 120VAC voltage is present to
primary side of transformer 2T.
F45576 (1015)
Fig. 10
A.
If voltage is present at output, transformer is
functioning.
B.
If voltage is not present at output, verify
transformer wiring connections.
1)
C.
Page 14 of 37
If connections are correct, replace
transformer.
If voltage is low, disconnect power from
machine.
1)
Disconnect one side of the secondary.
2)
Apply power to machine.
3)
Check voltage across secondary
windings.
SD3 Series - SERVICE PROCEDURES AND ADJUSTMENTS
3.
a.
If voltage at output is still low,
replace transformer.
b.
If voltage at output is between
11.5 - 16VAC, check the control
board assembly.
Lock adjusting nut in position with lower nut.
DELIMIMG PROCEDURE
DELIMING SOLUTION, RINSE
AGENTS, OR ANY OTHER KIND OF ACID MUST
NOT COME IN CONTACT WITH BLEACH OR RINSE
SOLUTION CONTAINING BLEACH USED IN
CHEMICAL SANITIZING MACHINES. MIXING MAY
CAUSE HAZARDOUS GAS TO FORM. THIS
ENTIRE PROCEDURE MUST BE FOLLOWED
STEP-BY-STEP FOR SAFE AND SATISFACTORY
RESULTS.
1.
Remove rack, drain tank, press "OFF".
2.
Press and hold "Cycle & "ON for three seconds.
3.
Open door & add delime agent per supplier
instructions for 14 gallon tank.
4.
Close door, pump starts & display flashes
“DELIME”. After 12 minutes display scrolls
“DRAIN ”.
5.
Check interior, close door to run additional cycles
if necessary.
6.
Drain tank, turn unit off.
NOTE: The delime counter feature is disabled from
the factory.
DOOR TENSION ADJUSTMENT
NOTE: Door is adjusted correctly if the door remains
in place at any position.
1.
Loosen lock nut.
Fig. 11
2.
Holding the spring rod in position to prevent
rotation, adjust the nut to provide proper tension.
Page 15 of 37
F45576 (1015)
SD3 Series - ELECTRICAL OPERATION
ELECTRICAL OPERATION
COMPONENT FUNCTION
Control Board
Assembly . . . . . . . . . . . . .
Controls dishwasher electrical operation.
Relay Board . . . . . . . . . .
Controlled by control board assembly, the on board relays and fuses deliver energy to
machine control components.
Fuse, Relay Board
(F1) . . . . . . . . . . . . . . . . . . .
1/10A fuse. Protects rinse feeder 1CR coil circuit.
Fuse, Relay Board
(F2) . . . . . . . . . . . . . . . . . . .
1.0A fuse. Protects primary of transformer 2T, 1CON, 2CON, 3CON, 1SOL and external
booster control from over-currents.
Switch Membrane
Keypad . . . . . . . . . . . . . . .
User interface to machine. Used to select wash mode and program control board
assembly.
Display Module . . . . . . .
Provides machine information to user through the use of LEDs, lighted icons, and
illuminated text and numbers.
Contactor (1CON) . . . . .
Controls electrical power to wash pump (120VAC coil).
Contactor (2CON) . . . . .
Controls electrical power to wash tank heater (120VAC coil).
Contactor (3CON) . . . . .
Controls electrical power to booster heater (120VAC coil).
Relay (1CR) . . . . . . . . . . .
Controlled by the control board assembly through the relay board, provides a means of
controlling energy to RPS1 and RPS2 on terminal block 3TB.
Float Switch (1FS) . . . .
Detects water level in tank. On SD3, control board only uses Low Water Level LED with
the float switch.
Heater, Booster (BSTR
HTR) . . . . . . . . . . . . . . . . . .
Heating element for booster (8.5kW).
Heater, Tank (Tank
HTR) . . . . . . . . . . . . . . . . . .
Heating element for wash tank (5kW to 7.2kW).
High Limit Thermostat
(1TAS) . . . . . . . . . . . . . . . .
Protects tank heater circuit.
High Limit Thermostat
(2TAS) . . . . . . . . . . . . . . . .
Protects booster circuit. Frame mounted, capillary design
High Limit Thermostat
(3TAS) . . . . . . . . . . . . . . . .
Protects booster circuit. Mounted on the booster.
Interlock Switch
(1LS) . . . . . . . . . . . . . . . . . .
Feed back to control board on state of door (open or closed).
Solenoid (1SOL) . . . . . .
Fill/rinse solenoid.
Thermistor, Wash
(1QTM) . . . . . . . . . . . . . . . .
Senses tank water temperature.
Thermistor, Rinse
(2QTM) . . . . . . . . . . . . . . . .
Senses rinse water temperature
Thermistor, Booster
(3QTM) . . . . . . . . . . . . . . . .
Senses booster water temperature
Terminal Block
(1TB) . . . . . . . . . . . . . . . . . .
Line service to tank contactor 2CON (1 phase only).
F45576 (1015)
Page 16 of 37
SD3 Series - ELECTRICAL OPERATION
Terminal Block
(2TB) . . . . . . . . . . . . . . . . . .
Line service to booster contactor 3CON (1 phase only).
Terminal Block
(3TB) . . . . . . . . . . . . . . . . . .
Connection point for detergent and rinse aid control devices.
Transformer (1T) . . . . .
Provides 120VAC to control circuit and 2T.
Transformer (2T) . . . . .
Provides 12VAC to control board.
COMPONENT LOCATION
Control Door Mounted Components
NOTE: The components present are determined by
the voltage, hertz, phase, and options on the
dishwasher.
Control Panel Mounted Components
Page 17 of 37
F45576 (1015)
SD3 Series - ELECTRICAL OPERATION
CONTROL BOARD / RELAY BOARD LAYOUT
Control Board
F45576 (1015)
Page 18 of 37
SD3 Series - ELECTRICAL OPERATION
Relay Board
NOTE: DETERGENT AND RINSE AID CIRCUITS
1.
NOT USED ON SD3.
Machine is off. Display is not lit.
A.
SEQUENCE OF OPERATION
Line voltage present at the following
components.
1)
Primary windings of transformer 1T.
Refer to the correct wiring diagram for model being
serviced when reviewing sequence of operation.
2)
Line sides of 1CON (pump motor) and
2CON (tank heater).
WIRING DIAGRAM - 3 PHASE
3)
Booster heater line side of 3CON.
WIRING DIAGRAM - 1 PHASE
4)
Relay terminals 1CR 4 and 8.
Initial Conditions
•
Door up (Door Interlock 1LS open).
B.
120VAC from transformer 1T present at the
following components.
•
Dishwasher tank empty (Float 1FS open).
1)
Triac Q2 (1CR coil) thru fuse F1.
•
Water supply requirements (110°F @ 20 ± 5 psi)
to machine are satisfied.
2)
Primary windings of transformer 2T
thru fuse F2.
•
Voltage supplied to machine is correct.
3)
Triac Q3 (3CON coil) thru fuse F2.
•
High limits are closed.
4)
Triac Q4 (1SOL) thru fuse F2.
Page 19 of 37
F45576 (1015)
SD3 Series - ELECTRICAL OPERATION
5)
Relay board relays K5-C, K8-C and K9C thru fuse F2.
a.
NOTE: It is normal for the secondary voltage (output)
from transformer 2T to range between 11.5 to 16VAC.
C.
12VAC present to control board J1-1/3 from
secondary windings of transformer 2T.
Acceptable voltage is 11.5 - 16VAC.
1)
2.
4.
Power supply on control board
converts AC voltage to 12VDC and
5VDC to power control board, display
and membrane switch.
A.
Control board enters self-test, also tests
display LEDs.
B.
K5 coil on relay board energize.
5.
6.
Booster temperature reaches set-point.
A.
Machine type (AP, AH or AC) is displayed
followed by tank temperature.
B.
MICRO LED on control board blinks at a 1
second on - 1 second off rate.
C.
5VDC present across 1QTM, 2QTM, 3QTM
and open contacts of 1FS.
D.
Tank temperature is displayed.
E.
Membrane switch - last selected cycle LED
is on. Cycle selection is enabled.
FILL LED on relay board turns off.
NOTE: Tank Heat and Booster circuits remain
energized until set point has been reached; however,
a wash cycle may be started at any point.
Self-test completes.
A.
Control board de-energizes 3CON coil
through the relay board. 3CON contacts
open de-energizing booster heater.
1)
7.
A.
Control board de-energizes 2CON coil
through the relay board. 2CON contacts
open de-energizing tank heater.
1)
8.
Door interlock switch 1LS closes.
B.
Control board senses float switch is open
and energizes fill/rinse solenoid 1SOL
through relay board. Tank begins to fill.
1)
C.
D.
A.
FILL icon and tank temperature are
displayed on display board.
9.
Tank float 1FS closes.
1)
LOW LEVEL WATER LED on control
board turns on.
2)
Control board energizes 3CON coil
through the relay board. 3CON
contacts close energizing booster
heater.
F45576 (1015)
Control board senses that float switch 1FS
was closed before the door was closed and
energizes relay K8 on relay board. 1CON
contacts close energizing the pump motor
MTR. A wash cycle begins.
1)
WASH LED on relay board turns on.
2)
Machine line voltage present at
terminals DPS1 and DPS2.
Wash cycle.
A.
The WASH icon and water temperature are
displayed.
B.
Wash cycle continues for time selected.
C.
Wash cycle completed.
1)
Page 20 of 37
TANK HEAT (AM) LED on relay board
turns off.
Door is opened and closed.
FILL LED on relay board turns on.
NOTE: Once tank float switch is closed, a wash cycle
can be started by opening and closing the door even
though fill is not complete.
BOOSTER LED on relay board turns
off.
Tank temperature reaches set-point.
Door is shut.
A.
TANK HEAT (AM) LED on relay
board turns on.
Depending on the fill time required to close float
switch 1FS, the control board will fill an additional
amount of time (75 - 120 seconds) after which
time the control board de-energizes the fill/rinse
solenoid 1SOL through the relay board.
A.
EXT BSTR & VFC (AM) LED on relay
board turns on.
Control board signals relay board
(relay K9) to energize 2CON coil.
2CON contacts close energizing tank
heater.
a.
ON key on membrane switch is pressed.
1)
3.
3)
BOOSTER LED on relay board
turns on.
Relay board K8 de-energizes. Wash
coil (1CON) de-energizes and pump
N.O. contacts open. Pump stops.
SD3 Series - ELECTRICAL OPERATION
a.
D.
E.
WASH LED on relay board turns
off.
2)
Dishwasher enters a dwell cycle.
Default is two seconds.
3)
Machine line voltage removed from
terminals DPS1 and DPS2.
Rinse cycle completed.
1)
Control board enters seven second
sani-dwell. RINSE icon is displayed
until sani-dwell cycle is complete.
2)
Control board de-energizes the rinse
feeder 1CR through the relay board.
Relay 1CR de-energizes and 1CR
N.O. contacts 4/2 and 8/6 open.
3)
Control board de-energizes the fill/
rinse solenoid 1SOL through the relay
board. Rinsing stops.
Rinse cycle begins.
1)
Control board energizes the fill/rinse
solenoid (1SOL) through the relay
board.
a.
2)
FILL LED on relay board turns on.
a.
Control board energizes the rinse
feeder relay coil (1CR) through the
relay board. Relay 1CR N.O. contacts
4/2 and 8/6 operate (close).
3)
The RINSE icon and final rinse
temperature are displayed.
4)
Machine line voltage present at
terminals RPS1 and RPS2.
5)
Rinse cycle continues for the
programmed time. Default is 10
seconds.
FILL LED on relay board turns off.
4)
Machine line voltage removed from
terminals RPS1 and RPS2.
5)
Tank temperature is displayed.
10. Tank Heat and Booster temperatures continue to
be monitored and maintained by the control
board through the relay board.
CONTROL and RELAY BOARD LEDs
CONTROL BOARD LEDs
CONTROL BOARD
DESCRIPTION
DOOR
On when door interlock 1LS is closed.
MICRO
Flashes at a rate of 1sec on, 1 sec off when machine is on.
LOW - On when float switch 1FS is closed.
WATER LEVEL
MID - Not used with SD3.
HIGH - Not used with SD3
RS485
Used with NAFEM Gateway.
RELAY BOARD LEDs
RELAY BOARD
BOOSTER
DESCRIPTION
On when triac Q3 (booster circuit) is gated on.
Booster heat on.
FILL
On when triac Q4 (fill circuit) is gated on. 1SOL on.
TANK HEAT AM
On when K9 is energized. Tank heat on.
EXT BSTR & VFC
On when machine is on.
WASH
On when K8 is energized. Pump motor on.
RINSE AID
On when triac Q2 (rinse feeder) is gated on. 1CR is energized.
Page 21 of 37
F45576 (1015)
SD3 Series - ELECTRICAL OPERATION
RELAY BOARD LEDs
RELAY BOARD
DESCRIPTION
DETERGENT
LEDs present on service replacement relay boards, but not used on SD3
machines.
SANITIZER
F45576 (1015)
Page 22 of 37
SD3 Series - ELECTRICAL OPERATION
WIRING DIAGRAM - 1 PHASE
Fig. 16
Page 23 of 37
F45576 (1015)
SD3 Series - ELECTRICAL OPERATION
WIRING DIAGRAM - 3 PHASE
Fig. 17
F45576 (1015)
Page 24 of 37
SD3 Series - TROUBLESHOOTING
TROUBLESHOOTING
QUICK REFERENCE CHART - ELECTRIC HEAT
ELECTRIC HEAT CHART
Component Under
Test
Transformer - 1T
Transformer - 2T
Test Point
Measure
Primary H1 & H2
208V Line Service
Primary H1 & H3
240V Line Service
Primary H1 & H4
480V Line Service
Secondary X1 & X2
120VAC
Primary X1 & X2
120VAC
Secondary
11.5 - 16VAC
BLK/RED, BLK/RED
Element Leads (Cold
Resistance)
Booster Heater
Element Leads (amperes)
Element Leads (Cold
Resistance)
Tank Heater
Element Leads (amperes)
Pump Motor
220-240V
12 - 13.9Ω
440 - 480V
48.2 - 55.7Ω
208/60/1
26A
5.4kW
240/60/1
30A
7.2kW
208/60/3
15A
5.4kW
240/60/3
17.3A
7.2kW
480/60/3
6A
5kW
208-240V
21.7 - 25.1Ω
480V
105 - 121.7Ω
208/60/1
26A
5.4kW
240/60/1
30A
7.2kW
208/60/3
15A
5.4kW
240/60/3
17.3A
7.2kW
480/60/3
6A
5kW
Motor Leads (amperes)
208/60/1
11.0A
240/60/1
10.6A
208/60/3
5.6A
240/60/3
5.4A
480/60/3
2.7A
J1-1/K1-3 Input Voltage
11.5 - 16VAC (present with power to machine)
Control Board
J1-2
Ground (frame)
VDC reference to
group unless
otherwise stated)
VUNREG (Test Pad)
14-19VDC (present with power to machine)
+ 12VDC (Test Pad)
12VDC (machine on)
+ 5VDC (Test Pad)
5VDC (machine on)
Page 25 of 37
F45576 (1015)
SD3 Series - TROUBLESHOOTING
ELECTRIC HEAT CHART
Component Under
Test
Test Point
Measure
J3-2 (Display)
12VDC (machine on)
J3-1 (Display)
5VDC (machine on)
J4-4 (Keypad)
5VDC (machine off only)
J4-3 (Keypad)
5VDC (machine on)
J4-2 (Keypad)
5VDC (machine on)
J6-1
5VDC (machine on)
J6-6 ®. Feed)
J6-5 (Fill 1SOL)
Change Reference to
+5VDC test pad for
J6-3 to J6-9
J6-6 (Pump)
J6-7 (Tank Htr)
5VDC (when circuit is active - component energized)
J6-8 (BSTR & VFC)
J6-9 (Booster)
J2
See Thermistor / Float Switch
J11
See Door Interlock 1LS
F1 & X2
120VAC both sides of fuse
F2 & X2
120VAC both sides of fuse
J3-10
5VDC (machine on)
K5-NO & X2
120VAC (machine on)
Relay Board
K6-C/NO
Continuity (machine on)
(VDC reference to
ground unless
otherwise stated)
K8-NO & X2
120VAC (during wash cycle)
J1-2
120VAC (during rinse)
J1-4
120VAC (tank calling for heat)
J1-7
120VAC (during fill/rinse)
J1-8
120VAC (BSTR calling for heat)
J3-1
Ground
J3-2 (Booster)
J3-3 (BSTR & VFC)
Change Reference to
+5VDC test pad for
J3-2 to J3-8
J3-4 (Tank Htr)
J3-5 (Pump)
5VDC (when circuits is active-component energized)
J3-6 (Fill 1SOL)
J3-8 ®. Feeder)
F45576 (1015)
Page 26 of 37
SD3 Series - TROUBLESHOOTING
ELECTRIC HEAT CHART
Component Under
Test
Test Point
Measure
100°F = 55.7kΩ
120°F = 34.9kΩ
Disconnect connector from
J2 to measure resistance
Thermistors
140°F = 22.6kΩ
158°F = 15.5kΩ
1QTM = J2-1 / J2-6
160°F = 14.9kΩ
2QTM = J2-2 / J2-7
180°F = 10.1kΩ
3QTM = J2-3 / J2-8
200°F = 7kΩ
212°F = 5.6kΩ
Float Switch
1FS = J2-4 / J2-10
Continuity
Door Interlock
1LS = J11-1 / J11-2
Continuity
CONTROL BOARD AND RELAY BOARD LEDS
CONTROL BOARD
Control Board
Description
DOOR
On when door interlock 1LS is closed.
MICRO
Flashers at a rate of 1 sec on, 1 sec off when machine is
on.
WATER LEVEL
LOW - On when float switch 1FS is closed.
RS485
Use with NAFEM Gateway
RELAY BOARD
Relay Board
Description
BOOSTER
On when triac Q3 (booster circuit) is gated on.
FILL
On when triac Q4 (fill circuit) is gated on. 1SOL on.
TANK HEAT
On when K9 is energized. Tank heat on.
EXT BSTR & VFC
On when machine is on.
WASH
On when K8 is energized. Pump motor on.
RINSE AID
On when triac Q2 (rinse feeder is gated on. 1CR is
energized.
DETERGENT SANITIZE
LEDs present on service replacement relay boards, nut
no used on SD3.
Page 27 of 37
F45576 (1015)
SD3 Series - TROUBLESHOOTING
CONTROL BOARD AND RELAY
BOARD
On dishwashers equipped with the
optional booster, the heat circuit is enabled when tank
float switch is closed. Do not operate machine with
dishwasher tank full of water and booster tank empty.
NOTE: The SD3 dishwasher uses the same control
board assembly as some other models. The control
board must be programmed as an SD3 for the
machine to function properly. Most SD3 related
problems can be found quickly by using the on-board
LEDs as a diagnostic tool.
NOTE: The control board is mounted in the machine
in such a way that the printing is upside down. The
control board will be depicted in the manual as it is
found on the machine for consistency purposes.
Fig. 18
a.
5)
If voltage is not present, check
transformer 2T.
VUNREG on control board has voltage
present (14 - 19VDC).
Operating Conditions
•
Refer to the proper wiring diagram for the model
being serviced.
•
Power is present to machine. The control board
is configured to the machine data plate to operate
as an SD Hot (H) or Plain (P) machine.
•
Correct water supply to machine, turned on and
at correct pressure (20 psi ± 5 psi).
•
Control board is properly grounded.
No Display After ON Key is Pressed
1.
Fig. 19
Press the ON key on switch membrane keypad.
A.
If display does not turn on, but all Cycle
LEDS on keypad are lit for a brief time, then
one of the Cycle LEDs remains lit, check the
display board.
B.
If there is no action on display and keypad.
Verify:
1)
Switch membrane keypad is plugged
into control board (two connectors).
2)
Display board is plugged into control
board.
3)
Fuse F2 on relay board is good.
4)
Input voltage to control board is
present (11.5 - 16VAC) across 1PL 1/3.
a.
6)
If voltage is not present, verify that
the connector is connected
correctly to J1 on control board. If
it is correct, replace control board.
5VDC at keypad connector J4-4.
Fig. 20
F45576 (1015)
Page 28 of 37
SD3 Series - TROUBLESHOOTING
a.
If voltage is not present, remove
ribbon cable connector and check
for 5VDC on pin J4-4. If not
present replace control board.
b.
If voltage is present at J4-4 press
and release the ON key on
keypad. Voltage should drop to
zero on J4-4 and remain at zero
until machine is turned off.
a)
If voltage does not drop to
zero or a few millivolts after
ON key is pressed, keypad
has malfunctioned.
c)
If 12VDC is missing,
disconnect the display board
ribbon cable from the control
board. Recheck. If 12VDC is
present, display board has
malfunctioned.
No Fill or Rinse
1.
Press the ON key on keypad to turn on machine.
2.
Verify the following.
NOTE: If the MICRO LED remains on or off constantly
when 5VDC is present on test pad, replace the control
board.
A.
OPERATING CONDITIONS are satisfied as
stated at the beginning of this section.
B.
Control board is programmed to operate as
an SD3.
C.
Wash tank is empty or water level is below
float.
1)
Float switch 1FS is open.
D.
Chamber door is closed.
E.
MICRO LED on control board is flashing at
a rate of 1 sec on 1 sec off.
F.
DOOR LED on control board is on.
Fig. 21
b)
If voltage drops to zero or just
a few millivolts after ON key
is pressed, check for
+12VDC and +5VDC on the
test pads of control board.
Fig. 23
1)
If DOOR LED is not on with door
closed, check door interlock switch,
1LS circuit.
NOTE: With the above conditions satisfied, the fill/
rinse circuit should be active (1SOL energized). The
FILL LED on relay board will be on whenever voltage
is applied to 1SOL.
3.
Fig. 22
Page 29 of 37
If machine is not filling, short the two FILL pins of
J12 on the control board together to energize
1SOL.
F45576 (1015)
SD3 Series - TROUBLESHOOTING
3)
Fig. 24
A.
Verify the FILL LED on relay board is lit
when J12 terminals on control board are
shorted together.
1)
1.
If the solenoid does not energize, but
the FILL LED on relay board is lit,
check relay board J1-7 for 120VAC.
a.
If 120VAC is not present across
J1-7 and X2, the relay board has
malfunctioned.
b.
If 120VAC is present across J1-7
and X2, remove the short from
J12 and check Fill/Rinse circuit.
If voltage measurements indicate
circuit is active, verify wiring to
relay board is correct. If correct,
replace relay board.
b.
If voltage measurements are not
present, replace control board.
c.
If voltage measurements remain
constant at approximately
4.5VDC, check the door interlock
circuit 1LS.
If the 1SOL energizes, remove J12
short and replace the control board.
Long Fill Time (6 minutes)
2.
Fig. 25
a.
Verify the following.
A.
OPERATING CONDITIONS are satisfied as
stated at the beginning of this section.
B.
Control board is programmed to operate as
an SD3.
C.
Chamber door is closed.
D.
Flowing water pressure is correct (20psi ±
5psi).
E.
Float switch circuit test good and is
connected to wiring harness.
F.
Drain is closed and not leaking.
If Low Water Level LED on control board is not lit
when float switch is operated (closed),
disconnect the thermistor and float connector
from J2 on control board.
NOTE: When 1SOL is energized, the voltage across
J6-5 and ground will be zero or a few millivolts. Circuit
activation can be verified by measuring 5VDC voltage
across the control board +5VDC test pad and J6-5
when the FILL/RINSE circuit is active.
2)
If 1SOL does not energize and the FILL
LED does not light, check control board
voltage output to relay board across
J6-5 (control board) and ground =
0VDC (J6-5 and +5VDC test pad =
5VDC).
F45576 (1015)
Page 30 of 37
Fig. 26
A.
Check continuity of float switch. Cycle float
(open and close) while observing meter.
B.
If continuity is not measured when float is
operated, check float switch circuit.
C.
If continuity exists, float is working normally.
SD3 Series - TROUBLESHOOTING
1)
Verify no debris is present in tank that
could cause float to malfunction.
2)
If no debris is interfering with float
operation, control board has
malfunctioned.
No Wash Cycle
1.
Verify the following.
A.
OPERATING CONDITIONS are satisfied as
stated at the beginning of this section.
B.
Control board is programmed to operate as
an SD3.
C.
Dishwasher is full of water.
Fig. 28
1)
NOTE: The DOOR LED will be lit when the door
switch 1LS is closed.
D.
Chamber door is closed.
E.
The MICRO LED is flashing at a rate of 1
sec on 1 sec off, and the DOOR and LOW
WATER LEVEL LEDs on control board are
on.
F.
Motor thermal circuit breaker is not tripped.
NOTE: The WASH LED on relay board will be on
whenever voltage is applied to the pump motor.
2.
NOTE: When machine calls for wash (K8 energized),
voltage across J6-6 and ground will be zero or a few
millivolts. Circuit activation can be verified by
measuring 5VDC voltage across the control board
+5VDC test pad and J6-6 when the wash circuit is
energized.
2)
Open and close chamber door. Wash cycle
should begin. Check to see if the WASH LED on
relay board is on.
Fig. 27
A.
B.
If WASH LED does not light and wash
pump does not energize when J14 is
shorted, check control board voltage
output to relay board across J6-6
(control board) and ground = 0VDC
(J6-6 and +5VDC test pad = 5VDC).
a.
If voltage measurements indicate
circuit is active, verify wiring to
relay board is correct. If correct,
replace relay board.
b.
If voltage measurements are not
present, replace control board.
c.
If voltage measurements remain
constant at approximately
4.5VDC, check the door interlock
circuit 1LS.
No Tank Heat
If the WASH LED is on, but the pump does
not energize, check operation of K8 relay.
1)
If the wash pump energizes when pins
J14 are shorted together, remove short
then open and close dishwasher door.
If wash cycle does not start, replace
control board.
1.
If relay K8 functions normally, check
remaining wash pump circuit.
If WASH LED is not on, test pump motor
circuit by shorting the two WASH pins of J14
on the control board together.
Page 31 of 37
Verify the following.
A.
OPERATING CONDITIONS are satisfied as
stated at the beginning of this section.
B.
Control board is programmed to operate as
an SD3.
C.
Dishwasher is full of water and tank
thermistor is good.
D.
Tank temperature is programmed properly
and machine is calling for heat.
F45576 (1015)
SD3 Series - TROUBLESHOOTING
E.
MICRO LED is flashing at a rate of 1 sec on,
1 sec off, and the DOOR and LOW WATER
LEVEL LEDs on control board are on.
Shorting J8 terminals together without
having water in the tank may result in damaging the
tank heater.
NOTE: The TANK HEAT (AM) LED on relay board
should be lit when J8 terminals on relay board are
shorted together.
2.
SERVICE DIAGNOSTICS
Certain procedures in this section
require electrical test or measurements while power is
applied to the machine. Exercise extreme caution at
all times. If test points are not easily accessible,
disconnect power and follow lockout / tagout
procedures, attach test equipment and reapply power
to the test.
Certain components in this system are
subject to damage by electrostatic discharge during
field repairs. A field service grounding kit is available
to prevent damage. The field service kit must be used
anytime the control board is handled.
Test tank heat circuit by shorting the two
terminals of J8 on the relay board together.
1.
Lower wash chamber door.
2.
Remove FRONT COVER.
3.
Open control door.
4.
Enter service diagnostics.
A.
From power off. Press and hold both PROG
and SELECT switches on the control board
then press and release the ON key on the
keypad. Continue to hold the PROG and
SELECT switches until the display indicates
[ 88 ]. Release the switches.
B.
When machine is on and tank temperature
displayed (FILL icon off). Press and hold
PROG switch then press SELECT switch on
control board.
Fig. 29
NOTE: When machine calls for heat, voltage across
J6-7 and ground will be zero or a few millivolts. Circuit
activation can be verified by measuring 5VDC voltage
across the control board +5VDC test pad and J6-7
when the TANK HEAT circuit is active.
A.
B.
If heater circuit energizes, remove J8 short
and troubleshoot the control board by
checking voltage output to relay board
across J6-7 (control board) and ground =
0VDC (J6-7 and +5VDC test pad = 5VDC).
5.
Perform tests as outlined under SERVICE
DIAGNOSTICS CHART and OUTPUT TEST on
the following pages.
6.
Exit service diagnostics by pressing the OFF key
on keypad.
1)
If voltage measurements indicate
circuit is active, verify wiring to relay
board is correct. If correct, replace
relay board.
2)
If voltage measurements are not
present, replace control board.
NOTE: When in service diagnostics mode the wrench
icon will be displayed except during display test. When
service diagnostics are entered, the control board will
display the most recent P and E errors, if errors are
present. A dash ( - ) in place of a number in either the
left or right digit position indicates no error to be
displayed for that digit. Example: If [ - 2 ] were
displayed, the only fault recorded was, "Water not to
float." However, if [ 2 2 ] were displayed, "Rinse
thermistor error" and "Water not to float" have both
occurred.
If heater contactor 2CON does not energize,
but TANK HEAT (AM) LED turns on, check
for 120VAC across relay board J1-4 and X2.
1)
If 120VAC is present, remove short
across J8 and check remaining tank
heat circuit.
2)
If 120VAC is not present, replace relay
board.
F45576 (1015)
Page 32 of 37
SD3 Series - TROUBLESHOOTING
ERROR CODES (IN SERVICE DIAGNOSTICS SCREEN)
Left Digit (1)
Right Digit (1)
Description of Error
-
-
Normal operation. No recorded errors.
-
d
Slow Leak.
-
E
Booster set point timeout (480 sec. after initial fill).
-
F
Control board E-prom error.
-
2
Water not to float on initial fill.
-
6
Float or temperature thermistor(s) open or connector J1 on control board
is open.
1
-
Wash thermistor error.
2
-
Rinse thermistor error.
3
-
Booster thermistor error.
SERVICE DIAGNOSTICS CHART
TEST
Recorded Error
Display Test
CYCLE, ▲ and PROG
Switch Test
Software Revision Level
Display
Tank Temperature
Rinse Temperature
Booster Temperature (AH
only)
ACTIVE KEY
KEY RESPONSE
DISPLAY DATA
▲ (arrow)
Reset recorded error(s)
Error messages (see ERROR
CODES table).
NOTE: Only the most recent
error recorded for each digit (left/
right) are stored and displayed.
Previously recorded errors are
overwritten.
Select
Jump to display test.
▲ (arrow)
Step through display test.
Select
Jump to Keypad Test.
—
Pressing any of the switches
under test displays a
corresponding number for that
switch.
▲ (control board) = 2
Select
Jump to Revision Level display.
PROG (control board) = 3
▲ (arrow)
No change
Select
Jump to Wash Temp
Display Revision Level of
Software.
Select
Select
Select
Sequences LED segments on
display board for test.
Display key number:
CYCLE (keypad) = 1
Jump to Rinse Temp
Tank temp and WASH icon.
Thermistor errors are indicated
as 'oP' or 'SP' for open or shorted
thermistors respectively.
Jump to Booster Temp
Rinse temp and RINSE icon.
Thermistor errors are indicated
as 'oP' or 'SP' for open or shorted
thermistors respectively.
Booster temp and WASH/
RINSE icons. Thermistor errors
Jump to Cycle Counter Display are indicated as 'oP' or 'SP' for
open or shorted thermistors
respectively.
Page 33 of 37
F45576 (1015)
SD3 Series - TROUBLESHOOTING
TEST
ACTIVE KEY
KEY RESPONSE
DISPLAY DATA
▲ (arrow)
Step through icons
See example of cycle count
below table.
M = million
ADD icon = 00 - 99 x 1M
DETERGENT icon = 00 - 99 x
1M
Cycle Counter
Select
SANITIZER icon = 00 - 99 x
10,000
Jump to Delime Cycles
RINSE icon = 00 - 99 x 100
AID icon = 00 - 99 x 1
NOTE: If no display seen for an
icon, total machine cycles is
below that multiplier.
Delime Cycle Counter
▲ (arrow)
Step through icons
(Cycles since last delime
operation)
Select
Jump to Output Tests
Always set to 0 for SD3
▲ (arrow)
Next Output
Select
Jump to Firmware Rev.
See OUTPUT TEST on
following page
Select
Jump to Recorded Error
Output Test
Reset Mode
DELIME - icon on
Microcontroller code for
Engineering use.
EXAMPLE: Retrieved data is; ADD = (no display), DETERGENT = 2, SANITIZER = 07, RINSE = 30, AID = 76
1. Disregard ADD since there is no numeric display.
5. Multiply 76 x 1 (AID) = 76
2. Multiply 2 x 1,000,000 (DETERGENT) = 2,000,000
6. Add products together to obtain total cycle count.
3. Multiply 07 x 10,000 (SANITIZER) = 70,000
Total Cycles = 2,000,000 + 70,000 + 3000 + 76
4. Multiplier 30 x 100 (RINSE) = 3000
Total Cycles = 2,073,076
SEQUENCE OF OUTPUTS
OUTPUT TESTS
CLOSE DOOR BEFORE
BEGINNING OUTPUT TEST. KEEP DOOR CLOSED
DURING TEST.
The output test cycles the relay outputs ON and OFF.
The output is ON for 5 seconds, then OFF for 25
seconds. The display alternates between flashing the
output number chosen and [ On ] for five seconds
when the output is energized. When the output is deenergized, the display will alternate between the
output number chosen and the remaining off time
(count down) in seconds. The output test continues for
the same output number until ª (arrow) or SELECT is
chosen.
F45576 (1015)
Relay Description
Output No.
EXT BSTR VFC
0
Booster Heat (3CON)
1
Fill/Rinse (1SOL)
2
Tank Heat (2CON)
3
Wash Pump (1CON)
4
Sanitizer Pump (1)
5
Detergent Pump (1)
6
Rinse Aid Pump (1CR)
7
(1) Disregard sanitizer and detergent output tests.
These features are not utilized on SD3 machines.
Replacement relay boards will have components
mounted on the board for the sanitizer and detergent
circuits, but will not be used by SD3 dishwashers.
Page 34 of 37
SD3 Series - TROUBLESHOOTING
NOTE: When troubleshooting, always check for
correct voltage, current, and resistance as specified
by the machine's data plate. Before troubleshooting
machine, verify that the control board assembly is
programmed to operate as an SD3.
Turn dishwasher off.
2.
Press the ON key on the switch membrane
keypad.
A.
AP (plain - external booster).
2)
AH (hot - self-contained booster).
3.
If machine type programmed into control board is
other than machine type on data plate, the control
board must be programmed before continuing.
Refer to CONTROL BOARD PROGRAMMING
as outlined in SERVICE PROCEDURES AND
ADJUSTMENTS.
4.
Check machine operation to see if problem still
exists.
VERIFY CONTROL BOARD is
CONFIGURED as an SD3
1.
1)
Control board/display will begin a selfcheck. When self-check completes,
machine type will be displayed briefly.
ERROR CODE CHART
ERROR CODE CHART
Error Code
Explanation
Troubleshooting
E3
E1 - After wash cycle.
1:15 cycle no rinse - E1
NOTE: Shows Pd
while washing
E2
Ensure drain lever is closed and the standpipe is
Water did not reach the float during a
properly seated. Verify float is clear of debris.
fill within 150 seconds.
Ensure the incoming water valve is open and water
flow/pressure is 20psi (+/- 5psi).
E6
Float and temperature thermistors
could not be detected.
Verify operation of float and temperature
thermistors. Ensure thermistor and door switch plug
is connected to J2 on control board.
Ed
Slow Leak. Machine enters fill cycle
three times with 35 minutes of initial
fill.
Ensure drain lever is closed and the standpipe is
properly seated with the O-ring clear of food soils
or other debris.
EE
Booster did not reach temperature
within eight minutes after initial fill.
Check to see that booster power is on. Check that
the water heater is on and supplying proper hot
water (min of 110°F).
EF
Severe internal control error.
Control board malfunction.
P1
Open or shorted wash tank
thermistor.
Check thermistor and switch thermistor and wiring.
P2
Open or shorted rinse thermistor.
Check rinse thermistor and wiring.
P3
Open or shorted booster thermistor.
Check booster thermistor and wiring.
an SD3. Refer to CHECKING CONTROL BOARD
CONFIGURATION as oulined in this section.
TROUBLESHOOTING TABLE
NOTE: Before troubleshooting machine,verify that
control board assembly is programmed to operate as
Page 35 of 37
F45576 (1015)
SD3 Series - TROUBLESHOOTING
SYMPTOM
No display
POSSIBLE CAUSES
1.
No power to machine. Fuse blown or circuit breaker tripped.
2.
Fuse F2 on relay board open.
3.
Missing 120VAC from 1T.
4.
Missing 11.5-16VAC from 2T to control board J1 1&3.
5.
Display board unplugged from control board or display board malfunction.
6.
Control board malfunction.
1.
Door is not shut.
Machine will not fill. No error 2.
code displayed.
3.
Door magnet missing
1.
Door switch malfunction. Verify DOOR LED on control board is on when
chamber door is closed.
Booster heating element
burns out repeatedly
F45576 (1015)
Tank float malfunction. Verify LOW LEVEL WATER LED on control board is on.
Obstruction in pump.
Motor overload tripped.
5.
Motor malfunction
1.
No water in dishwasher tank or float circuit malfunction
2.
No power to booster.
3.
Fuse blown in booster circuit or circuit breaker tripped.
4.
Booster heater does not heat
5.
at all.
6.
Booster heater repeatedly
blows fuse or trips circuit
breakers
Door interlock malfunction.
4.
Machine will not wash. Tank
2.
is filled with water. (Door
must be opened and closed 3.
to start wash cycle.)
4.
Rinse water temperature
does not reach 180°F.
Water not turned on.
Contactor malfunction (3CON).
Transformer malfunction 120VAC (1T).
High limit thermostat(s) malfunction
7.
Thermistor malfunction
8.
Heater element malfunction
9.
Control board assembly malfunction
1.
Heating element malfunction
2.
Incoming water temperature too low (minimum is 110°F).
3.
Voltage to booster heating circuit not correct.
4.
Incorrect heater being used.
5.
Booster heating elements coated with lime
1.
Undersized fuse.
2.
Check wire and fuse size.
3.
Short circuit in internal wiring
4.
Incorrect voltage or heater
1.
Element powered with low or no water in booster.
2.
Check for correct heater and voltage. Verify with machine data plate.
3.
Contactor malfunction (3CON).
Page 36 of 37
SD3 Series - TROUBLESHOOTING
SYMPTOM
Rinse aid pump not
energizing.
POSSIBLE CAUSES
1.
Fuse F1 on relay board open.
2.
Relay 1CR malfunction.
3.
External wiring to rinse device issue.
4.
Rinse aid pump (supplied by others) malfunction
5.
Relay board malfunction
6.
Control board malfunction
1.
High limit thermostat switch malfunction
Booster high limit thermostat 2.
trips.
3.
4.
1.
Display indicates cycle is in
process, but machine is idle 2.
(tank is filled with water).
3.
Booster temperature setting on control board too high.
Contactor malfunctioning (3CON).
No water in booster tank
Control board/relay board connections.
Relay board malfunction.
Control board malfunction
Page 37 of 37
F45576 (1015)
CATALOG OF
REPLACEMENT
PARTS
SD3 DISHWASHER
ML-130232
SD3
A product of T h e S t e r o C o m p a n y 1 7 5 8 C o r p o r a t e C i r c l e P e t a l u m a , C A 9 5 4 7 6
FORM 43302 (October 2015)
SD3 DISHWASHER REPLACEMENT PARTS
F-43302 Rev. B (October 2015)
-2-
© 2015
SD3 DISHWASHER REPLACEMENT PARTS
Table of Contents
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
CONTROLS
CONTROL CABLES
CONTROL BOX
MOTOR AND PUMP
UPPER WASH ARM
LOWER WASH ARM
RINSE PIPING (WITHOUT BOOSTER)
RINSE PIPING (WITH BOOSTER)
BOOSTER PIPING
ELECTRIC BOOSTER TANK
LOW WATER PROTECTION AND ELECTRIC HEAT
DRAIN UNIT
DRAIN WATER TEMPERING (OPTIONAL ACCESSORY)
DOOR ASSEMBLY
PANELS AND RACK SUPPORT
-3-
F-43302 Rev. B (October 2015)
SD3 DISHWASHER REPLACEMENT PARTS
CONTROLS
F-43302 Rev. B (October 2015)
-4-
SD3 DISHWASHER REPLACEMENT PARTS
CONTROLS
ILLUS.
PL-60512
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
PART NO.
0P-428299
0P-428301
0P-578212
0P-428217
0A-108045
0P-678336
0A-108045
0P-678137
0P-678335
0P-428218
0P-428306
0P-458219
0P-678141
0P-428218
0P-428220
0P-678141
0P-528313
0P-528315
0P-428185
0P-428185
0P-428300
0P-678336
0A-108045
0P-698261
0A-698310
0A-698303
0P-698207
0A-698311
0P-698208
NAME OF PART
AMT.
Switch - Membrane Keypad.......................................................................................................1
Trim - Keypad.............................................................................................................................1
Foam Tape..............................................................................................................................AR
Display Module...........................................................................................................................1
Clamp - Wire (3/4 I.D.)...............................................................................................................1
Lock Nut 3/16 Washer Type (SST)............................................................................................1
Clamp - Wire (3/4 I.D.)...............................................................................................................1
Nut 10-24 Hex (SST)..................................................................................................................1
Stop Nut 10-24 Hex Elastic (SST)..............................................................................................1
Standoff......................................................................................................................................2
Control Board Assy....................................................................................................................1
Ribbon Cable Assy.....................................................................................................................1
Stop Nut 6-32 Hex (SST)...........................................................................................................2
Standoff......................................................................................................................................2
Board - Relay Assy.....................................................................................................................1
Stop Nut 6-32 Hex (SST)...........................................................................................................2
Fuse (250 V.) (1 Amp.)...............................................................................................................1
Fuse (250 V., 0.1 Amp.).............................................................................................................1
Standoff - Reed Board (3/8) (Control Board)..............................................................................2
Standoff - Reed Board (3/8) (Relay Board)................................................................................2
Corner - Display.........................................................................................................................1
Lock Nut 3/16 Washer Type (SST)............................................................................................4
Clamp - Wire (3/4 I.D.)...............................................................................................................4
Plate (Patent Numbers)..............................................................................................................1
Label - Warning (Fuse) (Electric Heat) Label - Warning............................................................1
Plate - Machine Data..................................................................................................................1
Label - Warning (Electric Heat W/Booster) Label - Warning......................................................1
Label (Error Code)......................................................................................................................1
Label - Instruction.......................................................................................................................1
-5-
F-43302 Rev. B (October 2015)
SD3 DISHWASHER REPLACEMENT PARTS
CONTROL CABLES
F-43302 Rev. B (October 2015)
-6-
SD3 DISHWASHER REPLACEMENT PARTS
CONTROL CABLES
ILLUS.
PL-60513
1
2
3
4
5
6
PART NO.
0P-458219
0P-458259
0P-458260
0P-458254
0P-458255
0P-458256
NAME OF PART
AMT.
Ribbon Cable Assy.....................................................................................................................1
Harness - Sensor Assy...............................................................................................................1
Harness - Relay Board Assy......................................................................................................1
Cable - Rinse Thermistor...........................................................................................................1
Cable - Rinse Valve (WO/Electric Booster) (Incls. DIN Connector)...........................................1
Cable - Rinse Valve (W/Electric Booster) (Incls. DIN Connector)..............................................1
-7-
F-43302 Rev. B (October 2015)
SD3 DISHWASHER REPLACEMENT PARTS
CONTROL BOX
F-43302 Rev. B (October 2015)
-8-
SD3 DISHWASHER REPLACEMENT PARTS
CONTROL BOX
ILLUS.
PL-60514
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
PART NO.
0P-678161
0A-108203
0P-668314
0P-678161
0P-678352
0P-538200
0P-678161
0A-108203
0A-108262
0P-678347
0P-528240
0P-528186
0P-678351
0P-678348
0A-698309
0A-698312
0A-108045
0P-678161
0P-528186
0P-678351
0P-678348
0P-528186
0P-678351
0P-678348
0P-528198
0P-678161
0P-528198
0P-678161
0P-678161
0P-528188
0P-478267
0P-678161
0P-678161
0P-478181
0P-528199
0P-688133
0P-678161
0P-478181
0P-478182
0P-688134
0P-678160
0P-678161
0P-678352
0P-538201
0P-688134
0P-678341
0P-678142
NAME OF PART
AMT.
Self-Tapping Screw 10-16 x 1/2 Phil. Pan Hd., Type B..............................................................3
Clamp - Wire (1 I.D.)..................................................................................................................3
Bushing - Electrical Snap...........................................................................................................3
Self-Tapping Screw 10-16 x 1/2 Phil. Pan Hd., Type B..............................................................2
Lockwasher #10 External Shakeproof (SST).............................................................................2
Transformer (T2) (30 VA, 50/60 Hz.)..........................................................................................1
Self-Tapping Screw 10-16 x 1/2 Phil. Pan Hd., Type B..............................................................2
Clamp - Wire (1 I.D.)..................................................................................................................2
Box - Control..............................................................................................................................1
Self-Tapping Screw 6-20 x 1/2 Phil. Pan Hd., Type B................................................................2
Block - Terminal (Double Row)..................................................................................................1
Lug - Grounding.........................................................................................................................1
Lockwasher 1/4 External Shakeproof.........................................................................................1
Self-Tapping Screw 1/4-20 x 3/8 Phil. Pan Hd., Type TT...........................................................1
Label - Terminal Block................................................................................................................1
Label - Electric Ampacity............................................................................................................1
Clamp - Wire (3/4 I.D.)...............................................................................................................6
Self-Tapping Screw 10-16 x 1/2 Phil. Pan Hd., Type B..............................................................6
Lug - Grounding (Electric Booster).............................................................................................1
Lockwasher 1/4 External Shakeproof (Electric Booster)............................................................1
Self-Tapping Screw 1/4-20 x 3/8 Phil. Pan Hd., Type TT (Electric Booster)..............................1
Lug - Grounding.........................................................................................................................1
Lockwasher 1/4 External Shakeproof.........................................................................................1
Self-Tapping Screw 1/4-20 x 3/8 Phil. Pan Hd., Type TT...........................................................1
Block - Terminal (Electric Booster) (1 Ph.).................................................................................1
Self-Tapping Screw 10-16 x 1/2 Phil. Pan Hd., Type B (1 Ph.)..................................................2
Block - Terminal (Electric Booster) (1 Ph.).................................................................................1
Self-Tapping Screw 10-16 x 1/2 Phil. Pan Hd., Type B..............................................................2
Self-Tapping Screw 10-16 x 1/2 Phil. Pan Hd., Type B..............................................................4
Block - Terminal.........................................................................................................................1
Contactor (40 Amp., 3-Pole).......................................................................................................1
Self-Tapping Screw 10-16 x 1/2 Phil. Pan Hd., Type B..............................................................2
Self-Tapping Screw 10-16 x 1/2 Phil. Pan Hd., Type B..............................................................2
Contactor (25 Amp., 3-Pole).......................................................................................................1
Block - Fuse (Gas Heat).............................................................................................................1
Fuse (5.0 Amp., 250 V.).............................................................................................................1
Self-Tapping Screw 10-16 x 1/2 Phil. Pan Hd., Type B..............................................................2
Contactor (25 Amp., 3-Pole).......................................................................................................1
Relay (2-Pole) (30 Amp.)............................................................................................................1
Adapter - Electrical.....................................................................................................................1
Self-Tapping Screw 8-18 x 3/8 Phil. Bndg. Hd., Type B.............................................................2
Self-Tapping Screw 10-16 x 1/2 Phil. Pan Hd., Type B..............................................................4
Lockwasher #10 External Shakeproof (SST).............................................................................4
Transformer (100 VA.) (50/60 Hz.) Transformer (T1) (208/240/480 V., 50/60 Hz.)..... ..............1
Adapter - Electrical.....................................................................................................................1
Cap Screw 5/16-18 x 1-1/8 Hex Hd. (SST)................................................................................4
Stop Nut 5/16-18 Hex (SST)......................................................................................................4
-9-
F-43302 Rev. B (October 2015)
SD3 DISHWASHER REPLACEMENT PARTS
MOTOR AND PUMP
F-43302 Rev. B (October 2015)
- 10 -
SD3 DISHWASHER REPLACEMENT PARTS
MOTOR AND PUMP
ILLUS.
PL-60515
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
PART NO.
0P-678341
0P-578248
0A-108285
0P-678169
0P-678142
0A-108239
0P-678165
0P-678139
0A-108211
0P-688297
0P-678294
0B-108293
0B-108289
0P-578288
0P-578292
0P-678295
0A-108279
0P-418286
0P-418287
0P-418296
0C-418283
0C-418284
0A-108213
0P-688225
0P-678290
0P-678291
NAME OF PART
AMT.
Cap Screw 5/16-18 x 1-1/8 Hex Hd. (SST)................................................................................2
Gasket - Adapter........................................................................................................................1
Adapter (Pump-to-Manifold).......................................................................................................1
Washer (SST).............................................................................................................................2
Stop Nut 5/16-18 Hex (SST)......................................................................................................2
Screen - Pump...........................................................................................................................1
Lockwasher 5/16 Helical (SST)..................................................................................................4
Nut 5/16-18 Hex (SST)...............................................................................................................4
Clamp - Hose.............................................................................................................................2
Hose - Pump Intake....................................................................................................................1
Mach. Screw 6mm x 18mm (SST)...........................................................................................11
Pump Shell (Outer).....................................................................................................................1
Impeller (60 Hz.).........................................................................................................................1
Shaft - Seal.................................................................................................................................1
Seal............................................................................................................................................1
Lock Nut 6mm (SST)................................................................................................................11
Bracket - Motor Mounting...........................................................................................................1
Motor (208-240/480/60/3)...........................................................................................................1
Motor (208-240/60/1)..................................................................................................................1
Fan - Cooling 60 Hz...................................................................................................................1
Pump & Motor Assembly 208-240/480/60/3...............................................................................1
Pump & Motor Assembly 208-240/60/1......................................................................................1
Clamp - Hose.............................................................................................................................2
Hose - Discharge........................................................................................................................1
Lockwasher 10mm (SST)...........................................................................................................1
Jam Nut 10mm (SST).................................................................................................................1
- 11 -
F-43302 Rev. B (October 2015)
SD3 DISHWASHER REPLACEMENT PARTS
UPPER WASH ARM
F-43302 Rev. B (October 2015)
- 12 -
SD3 DISHWASHER REPLACEMENT PARTS
UPPER WASH ARM
ILLUS.
PL-AI3993
PART NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
0P-678346
0P-578176
0B-108308
0P-578179
0P-678343
0B-108298
0A-108221
0A-108222
0P-678344
0A-108245
0A-108246
0P-668243
0P-678338
0P-578178
0A-108227
0A-108581
0A-108580
P678170
NS-047-82
NAME OF PART
AMT.
Cap Screw 5/16-18 x 3/8 Hex Hd...............................................................................................2
O-Ring........................................................................................................................................1
Wash Manifold Assy. (Upper).....................................................................................................1
O-Ring........................................................................................................................................1
Set Screw 10-24 x 1/4 Hex Hdls., Cup Pt. (SST).......................................................................2
Hub - Wash Arm.........................................................................................................................1
Arm - Wash................................................................................................................................1
Wash Arm Assy. Wash Arm Assy. (Incls. Items 8, 9, & 11).......................................................1
Mach. Screw 10-24 x 1/2 Phil. Truss Hd. (SST).........................................................................2
Arm - Rinse (Incls. Items 13 & 14).............................................................................................1
Plug - Rinse Arm........................................................................................................................2
Bearing.......................................................................................................................................1
Retaining Ring............................................................................................................................1
O-Ring........................................................................................................................................1
Tube - Wash...............................................................................................................................1
Assy, Mount, Door Stop.............................................................................................................2
Bracket & Retainer for wash tube...............................................................................................2
Washer (SST).............................................................................................................................4
Stop Nut 1/4-20 Hex (SST)........................................................................................................4
- 13 -
F-43302 Rev. B (October 2015)
SD3 DISHWASHER REPLACEMENT PARTS
LOWER WASH ARM
F-43302 Rev. B (October 2015)
- 14 -
SD3 DISHWASHER REPLACEMENT PARTS
LOWER WASH ARM
ILLUS.
PL-AI3998
PART NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
0P-678343
0A-108245
0A-108246
0P-668243
0P-578178
0P-678338
0A-108222
0A-108221
0P-678344
0B-108298
0A-108234
0B-108226
0P-578176
0P-578179
NAME OF PART
AMT.
Set Screw 10-24 x 1/4 Hex Hdls., Cup Pt. (SST).......................................................................2
Arm - Rinse (Incls. Items 3 & 4).................................................................................................1
Plug - Rinse Arm........................................................................................................................2
Bearing.......................................................................................................................................1
O-Ring........................................................................................................................................1
Retaining Ring............................................................................................................................1
Wash Arm Assy. Wash Arm Assy. (Incls. Items 8, 9, & 10).......................................................1
Arm - Wash................................................................................................................................1
Mach. Screw 10-24 x 1/2 Phil. Truss Hd. (SST).........................................................................2
Hub - Wash Arm.........................................................................................................................1
Shaft - Rinse Arm Shaft - Rinse Arm..........................................................................................1
Manifold - Wash (Lower)............................................................................................................1
O-Ring........................................................................................................................................1
O-Ring........................................................................................................................................1
- 15 -
F-43302 Rev. B (October 2015)
SD3 DISHWASHER REPLACEMENT PARTS
RINSE PIPING
(WITHOUT BOOSTER)
F-43302 Rev. B (October 2015)
- 16 -
SD3 DISHWASHER REPLACEMENT PARTS
RINSE PIPING
(WITHOUT BOOSTER)
ILLUS.
PL-60518
1
2
3
4
5
6
7
8
9
10
11
12
14
13
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
PART NO.
0P-678165
0P-678142
0B-108236
0P-628041
00-292910
0P-658268
0B-108237
0P-548093
0P-548085
0P-548094
0P-458210
0P-688317
0P-688320
0P-688326
0P-638036
0P-688037
0P-688039
0P-578038
0P-678336
0A-108203
0A-108235
0P-678139
0P-678165
0P-528129
0P-658206
0A-108228
0P-688324
0P-678150
0P-578196
0P-578172
NAME OF PART
AMT.
Lockwasher 5/16 Helical (SST)..................................................................................................2
Stop Nut 5/16-18 Hex (SST)......................................................................................................2
Piping - Fill..................................................................................................................................1
Vacuum Breaker (1/2 In.)...........................................................................................................1
Service Kit - Vacuum Breaker....................................................................................................1
Gauge - Water Pressure Gauge - Water Pressure....................................................................1
Fill Piping Assy...........................................................................................................................1
Solenoid Valve (1/2) (120 V.).....................................................................................................1
Coil - Solenoid Valve (120 V.)....................................................................................................1
Service Kit - 1/2 Solenoid Valve.................................................................................................1
Connector - D.I.N.......................................................................................................................1
Elbow - Pipe 1/2 x 90 Deg. (Brass)............................................................................................1
Bushing - Pipe 3/4 to 1/2 (Brass)...............................................................................................1
Pipe 1/2 x 2 TBE (Brass)............................................................................................................1
Strainer - Line (3/4 In.) (Brass) (Incls. Items 16, 17, & 18).........................................................1
Plug - Branch..............................................................................................................................1
Screen - Line Strainer................................................................................................................1
0P-578038..................................................................................................................................1
Lock Nut 3/16 Washer Type (SST)............................................................................................1
Clamp - Wire (1 I.D.)..................................................................................................................1
Bracket - Fill Piping....................................................................................................................1
Nut 5/16-18 Hex (SST)...............................................................................................................2
Lockwasher 5/16 Helical (SST)..................................................................................................2
Connector - Strain Relief............................................................................................................2
Probe Assy. - Rinse....................................................................................................................1
Inside Rinse Piping Assy. Inside Rinse Piping Assy..................................................................1
Pipe 1/2 x 1-3/8 TBE (Brass)......................................................................................................1
0P-678150..................................................................................................................................2
Gasket - Rinse Pipe...................................................................................................................1
O-Ring........................................................................................................................................1
- 17 -
F-43302 Rev. B (October 2015)
SD3 DISHWASHER REPLACEMENT PARTS
RINSE PIPING
(WITH BOOSTER)
F-43302 Rev. B (October 2015)
- 18 -
SD3 DISHWASHER REPLACEMENT PARTS
RINSE PIPING
(WITH BOOSTER)
ILLUS.
PL-60519
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
PART NO.
0P-678165
0P-678142
0B-108236
0P-628041
0P-628042
0P-658206
0P-658268
0B-108238
0P-688317
0P-688258
0P-678139
0P-678165
0P-528129
0A-108235
0A-108228
0P-578172
0P-678150
0P-578196
NAME OF PART
AMT.
Lockwasher 5/16 Helical (SST)..................................................................................................2
Stop Nut 5/16-18 Hex (SST)......................................................................................................2
Piping - Fill..................................................................................................................................1
Vacuum Breaker (1/2 In.)...........................................................................................................1
Repair Kit - Vacuum Breaker......................................................................................................1
Probe Assy. - Rinse....................................................................................................................1
Gauge - Water Pressure Gauge - Water Pressure....................................................................1
Fill Piping Assy...........................................................................................................................1
Elbow - Pipe 1/2 x 90 Deg. (Brass)............................................................................................1
Hose - Water (Braided) (84 In.) (SST)........................................................................................1
Nut 5/16-18 Hex (SST)...............................................................................................................2
Lockwasher 5/16 Helical (SST)..................................................................................................2
Connector - Strain Relief............................................................................................................1
Bracket - Fill Piping....................................................................................................................1
Inside Rinse Piping Assy. Inside Rinse Piping Assy..................................................................1
O-Ring........................................................................................................................................1
0P-678150..................................................................................................................................2
Gasket - Rinse Pipe...................................................................................................................1
- 19 -
F-43302 Rev. B (October 2015)
SD3 DISHWASHER REPLACEMENT PARTS
BOOSTER PIPING
F-43302 Rev. B (October 2015)
- 20 -
SD3 DISHWASHER REPLACEMENT PARTS
BOOSTER PIPING
ILLUS.
PL-60520
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
PART NO.
0P-688325
0P-688317
0P-688318
0P-688322
0P-688323
0P-548093
0P-548094
0P-548085
0P-688323
0P-688317
0P-688319
0P-688317
0P-688323
0P-688320
0P-638036
0P-688037
0P-688039
0P-578038
NAME OF PART
AMT.
Pipe 1/2 x 7 TBE (Brass)............................................................................................................1
Elbow - Pipe 1/2 x 90 Deg. (Brass)............................................................................................1
Tee - Pipe 1/2 x 1/2 x 1/2 (Brass)...............................................................................................1
Pipe Plug 1/2 Sq. Hd. (Brass)....................................................................................................1
Pipe 1/2 x 1-1/4 TBE (Brass)......................................................................................................1
Solenoid Valve (1/2) (120 V.).....................................................................................................1
Service Kit - 1/2 Solenoid Valve..............................................................................................AR
Coil - Solenoid Valve (120 V.)....................................................................................................1
Pipe 1/2 x 1-1/4 TBE (Brass)......................................................................................................1
Elbow - Pipe 1/2 x 90 Deg. (Brass)............................................................................................1
Union - Pipe (Brass)...................................................................................................................1
Elbow - Pipe 1/2 x 90 Deg. (Brass)............................................................................................1
Pipe 1/2 x 1-1/4 TBE (Brass)......................................................................................................1
Bushing - Pipe 3/4 to 1/2 (Brass)...............................................................................................1
Strainer - Line (3/4 In.) (Brass) (Incls. Items 16, 17, & 18).........................................................1
Plug - Branch..............................................................................................................................1
Screen - Line Strainer................................................................................................................1
0P-578038..................................................................................................................................1
- 21 -
F-43302 Rev. B (October 2015)
SD3 DISHWASHER REPLACEMENT PARTS
ELECTRIC BOOSTER TANK
F-43302 Rev. B (October 2015)
- 22 -
SD3 DISHWASHER REPLACEMENT PARTS
ELECTRIC BOOSTER TANK
ILLUS.
PL-60521
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
PART NO.
0P-678142
0P-678169
0P-678340
0A-108281
0P-558276
0P-558275
0P-558277
0P-678332
0A-108282
0B-108269
0P-688317
0A-108280
0P-658205
0P-658206
0P-578215
NAME OF PART
AMT.
Stop Nut 5/16-18 Hex (SST)......................................................................................................1
Washer (SST).............................................................................................................................1
Cap Screw 5/16-18 x 3/4 Hex Hd. (SST)...................................................................................1
Bracket - Booster Support..........................................................................................................1
Heater (240 V., 8.5 kW)..............................................................................................................1
Heater (208V., 8.5 kW)...............................................................................................................1
Heater (480 V., 8.5 kW)..............................................................................................................1
Nut 1/4-20 Hex (Brass)...............................................................................................................6
Bracket - Booster Mounting........................................................................................................1
Tank - Booster Weldment...........................................................................................................1
Elbow - Pipe 1/2 x 90 Deg. (Brass)............................................................................................1
Bracket - High Limit....................................................................................................................1
Protector - High Limit Protector - High Limit...............................................................................2
Probe Assy. - Rinse....................................................................................................................1
Gasket (13 kW) (Electric Heater)...............................................................................................1
- 23 -
F-43302 Rev. B (October 2015)
SD3 DISHWASHER REPLACEMENT PARTS
LOW WATER PROTECTION AND ELECTRIC HEAT
F-43302 Rev. B (October 2015)
- 24 -
SD3 DISHWASHER REPLACEMENT PARTS
LOW WATER PROTECTION AND ELECTRIC HEAT
ILLUS.
PL-60522
PART NO.
1
2
3
4
5
6
0P-678333
0P-678350
0B-108216
0P-578174
0P-558251
0P-558249
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
0P-558250
0P-678337
0A-108184
0C-108278
0C-108192
0P-578175
0B-108190
0P-678354
0P-678353
0P-678334
0P-578173
0A-108191
0P-678164
0P-678138
0P-658202
0A-108209
0P-678335
NAME OF PART
AMT.
Nut 3/8-16 (Brass) (Supplied With Heater).................................................................................1
Lockwasher 3/8 Helical (SST)....................................................................................................1
Plate - Electric Heat....................................................................................................................1
O-Ring........................................................................................................................................1
Element - Heater Wash Tank (6 kW) (200 V) Element - Heater (6.2 kW) (208 V.).................AR
Element - Heater (5 kW) (200-240 V., 50/60 Hz., 1 & 3 Ph.) Element - Heater (5 kW)
(200-240 V., 60 Hz., 1 & 3 Ph.)..................................................................................................1
Element - Heater (480 V.) Element - Heater (5 kW) (480 V., 60 Hz., 3 Ph.)..............................1
Retaining Ring............................................................................................................................1
Retainer - Float...........................................................................................................................1
Switch & Probe Assy. (4-Wire) (Short) (Incls. Items 9 & 11)......................................................1
Float Assy...................................................................................................................................1
O-Ring........................................................................................................................................1
Cap & Stud Assy........................................................................................................................1
Washer - Thrust..........................................................................................................................1
Lockwasher 1/2 External Shakeproof (SST)..............................................................................1
Jam Nut 1/2-20 Hex (SST).........................................................................................................1
O-Ring........................................................................................................................................1
Retainer - Cap............................................................................................................................1
Lockwasher 1/4 Helical (SST)....................................................................................................1
Nut 1/4-20 Hex (SST).................................................................................................................1
Control - Temperature................................................................................................................1
Bracket - High Limit....................................................................................................................1
Stop Nut 10-24 Hex Elastic (SST)..............................................................................................2
- 25 -
F-43302 Rev. B (October 2015)
SD3 DISHWASHER REPLACEMENT PARTS
DRAIN UNIT
F-43302 Rev. B (October 2015)
- 26 -
SD3 DISHWASHER REPLACEMENT PARTS
DRAIN UNIT
ILLUS.
PL-60523
1
2
3
4
5
6
7
8
9
10
11
12
PART NO.
0A-108232
0P-678143
0A-108189
0A-108244
0A-108247
0P-678344
0P-578177
0A-108241
0A-108242
0P-678355
0P-678349
0A-108187
NAME OF PART
AMT.
Strainer Pan...............................................................................................................................1
Cotter Pin 1/16 x 1/2 (SST)........................................................................................................1
Axle - Drain Lever.......................................................................................................................1
Drain Lever Assy........................................................................................................................1
Drain - Lift...................................................................................................................................1
Mach. Screw 10-24 x 1/2 Phil. Truss Hd. (SST).........................................................................1
O-Ring........................................................................................................................................1
Drain Tube Assy.........................................................................................................................1
Cover - Standpipe......................................................................................................................1
Washer.......................................................................................................................................3
Self-Tapping Screw 10-24 x 1/2 Phil. Truss Hd., Type F (SST).................................................3
Strainer Basket Assy..................................................................................................................1
- 27 -
F-43302 Rev. B (October 2015)
SD3 DISHWASHER REPLACEMENT PARTS
DRAIN WATER TEMPERING
(OPTIONAL ACCESSORY)
F-43302 Rev. B (October 2015)
- 28 -
SD3 DISHWASHER REPLACEMENT PARTS
DRAIN WATER TEMPERING
(OPTIONAL ACCESSORY)
ILLUS.
PL-60524
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
PART NO.
0P-638193
0A-108194
0P-638194
0P-578195
0P-688135
0P-548270
0P-548093
0P-548085
0P-548094
0P-628093
0P-688319
0P-688321
0P-688328
0P-688265
0P-688272
0P-688330
0P-688331
0P-688271
0P-688329
0P-688327
0P-678160
0P-658204
0P-458273
0P-458274
0P-458180
NAME OF PART
AMT.
Strainer - Line (1/2) (Brass) (Incls. Items 2, 3, & 4)....................................................................1
Plug - Branch..............................................................................................................................1
Screen - Strainer (1/2 In.)...........................................................................................................1
Gasket........................................................................................................................................1
Pipe 1/2 x 1-1/8 TBE (Brass)......................................................................................................4
Valve - Solenoid (1/2) (120 V.)...................................................................................................1
Solenoid Valve (1/2) (120 V.) (Incls. Item 8)..............................................................................1
Coil - Solenoid Valve (120 V.)....................................................................................................1
Service Kit - 1/2 Solenoid Valve.................................................................................................1
Backflow Preventer....................................................................................................................1
Union - Pipe (Brass)...................................................................................................................1
Adapter 1-1/2 Brass to 1/2 FPT..................................................................................................1
Tee 1-1/2 x 1-1/2 x 1-1/2 (CPVC)...............................................................................................1
Adapter - Male 1-1/2 (CPVC).....................................................................................................1
Pipe 1-1/2 x 2-1/2 (CPVC)..........................................................................................................1
Elbow 1-1/2 x 90 Deg. (CPVC)...................................................................................................1
Y-Fitting 1-1/2 (CPVC)...............................................................................................................1
Pipe 1-1/2 x 6 (CPVC)................................................................................................................1
Adapter 1-1/2 CPVC to 1 FPT....................................................................................................1
Bushing - Pipe 1 to 3/8...............................................................................................................1
Self-Tapping Screw 8-18 x 3/8 Phil. Bndg. Hd., Type B.............................................................2
Thermostat (120 Deg.)...............................................................................................................1
Cable Assy.................................................................................................................................1
Wire (Transformer to Thermostat)..............................................................................................1
Wire Tie...................................................................................................................................AR
- 29 -
F-43302 Rev. B (October 2015)
SD3 DISHWASHER REPLACEMENT PARTS
DOOR ASSEMBLY
F-43302 Rev. B (October 2015)
- 30 -
SD3 DISHWASHER REPLACEMENT PARTS
DOOR ASSEMBLY
ILLUS.
PL-AI3997
PART NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
0P-678169
0A-108091
0P-678169
0P-678142
0A-108097
0P-678150
0P-678169
0A-108090
0B-108233
0P-678169
0P-678142
0P-668017
0A-108087
0P-608088
0A-108089
0P-678139
0P-678169
0P-678142
0P-668017
0A-108096
0A-108257
0C-108115
0A-108013
0P-678141
0A-108095
0B-108113
0P-678141
0P-528129
0A-108083
0C-108114
0P-678339
0P-678152
0P-678155
0P-678139
0P-678165
0A-108302
0A-108305
0A-108304
0P-578183
0A-108578
NAME OF PART
AMT.
Washer (SST).............................................................................................................................2
Spacer - Door Link (Lower)........................................................................................................2
Washer (SST).............................................................................................................................2
Stop Nut 5/16-18 Hex (SST)......................................................................................................2
Link - Door Handle.....................................................................................................................2
0P-678150..................................................................................................................................2
Washer (SST).............................................................................................................................2
Spacer Door Link (Upper)..........................................................................................................2
Handle - Weldment.....................................................................................................................1
Washer (SST).............................................................................................................................2
Stop Nut 5/16-18 Hex (SST)......................................................................................................2
Button - Bearing.........................................................................................................................4
Hanger - Counterbalance (Spring).............................................................................................1
Spring - Extension (Door)...........................................................................................................1
Hook - Spring.............................................................................................................................1
Nut 5/16-18 Hex (SST)...............................................................................................................3
Washer (SST).............................................................................................................................2
Stop Nut 5/16-18 Hex (SST)......................................................................................................4
Button - Bearing.........................................................................................................................4
Support - Handle........................................................................................................................2
Stiffener - Door Plate..................................................................................................................2
Door Assy. (LH)..........................................................................................................................1
Magnet.......................................................................................................................................1
Stop Nut 6-32 Hex (SST)...........................................................................................................2
Magnet - Mount..........................................................................................................................1
Switch - Reed (Interlock)............................................................................................................1
Stop Nut 6-32 Hex (SST)...........................................................................................................4
Connector - Strain Relief............................................................................................................1
Bracket - Magnet........................................................................................................................1
Door Assy. (RH).........................................................................................................................1
Cap Screw 5/16-18 x 1/2 Hex Hd. (SST)...................................................................................4
Cap Screw 5/16-18 x 1-1/4 Hex Hd. (SST).............................................................................AR
Mach. Screw 5/16-18 x 3/4 Truss Hd. (SST)...........................................................................AR
Nut 5/16-18 Hex (SST)............................................................................................................AR
Lockwasher 5/16 Helical (SST)...............................................................................................AR
Chamber - Weldment (Upper)....................................................................................................1
Bracket.......................................................................................................................................2
Door Assy. (Front)......................................................................................................................1
Guide - Door...............................................................................................................................4
Deflector, Splash Out, Door.......................................................................................................1
- 31 -
F-43302 Rev. B (October 2015)
SD3 DISHWASHER REPLACEMENT PARTS
PANELS AND RACK SUPPORT
F-43302 Rev. B (October 2015)
- 32 -
SD3 DISHWASHER REPLACEMENT PARTS
PANELS AND RACK SUPPORT
ILLUS.
PL-AI3996
PART NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
0P-678149
0A-108264
0P-678142
0P-578173
0P-678138
0P-678164
0A-108191
0B-108190
0P-458263
0P-678342
0P-678164
0A-108230
0P-578266
0A-108252
0A-108253
0P-678345
0P-678164
0A-108229
0P-578212
0P-578224
0P-578212
0P-678164
0P-678342
0A-108223
0A-108579
NAME OF PART
AMT.
Cap Screw 5/16-18 x 5/8 Hex Hd. (SST)...................................................................................5
Rack - Stop Assy........................................................................................................................1
Stop Nut 5/16-18 Hex (SST)......................................................................................................5
O-Ring........................................................................................................................................1
Nut 1/4-20 Hex (SST).................................................................................................................1
Lockwasher 1/4 Helical (SST)....................................................................................................1
Retainer - Cap............................................................................................................................1
Cap & Stud Assy........................................................................................................................1
Wireform Assy............................................................................................................................1
Cap Screw 1/4-20 x 1/2 Hex Hd. (SST).....................................................................................2
Lockwasher 1/4 Helical (SST)....................................................................................................2
Panel - Cover (Right Side).........................................................................................................1
Kit - Foam Installation..............................................................................................................AR
Foot - Flanged (With Holes).......................................................................................................4
Foot - Standard..........................................................................................................................4
Mach. Screw 1/4-20 x 1/2 Phil. Truss Hd...................................................................................2
Lockwasher 1/4 Helical (SST)....................................................................................................2
Panel - Cover (Front)..................................................................................................................1
Foam Tape..............................................................................................................................AR
Seal - Extrusion.......................................................................................................................AR
Foam Tape..............................................................................................................................AR
Lockwasher 1/4 Helical (SST)....................................................................................................2
Cap Screw 1/4-20 x 1/2 Hex Hd. (SST).....................................................................................2
Panel - Cover (Left Side)............................................................................................................1
Deflector, Splash Out, Tank.......................................................................................................1
- 33 -
F-43302 Rev. B (October 2015)
SD3 DISHWASHER REPLACEMENT PARTS
FORM 43302 Rev. B
OCTOBER 2015
PRINTED IN U.S.A.
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