Whirlpool WDF110PABW3 User manual

1
FOR SERVICE TECHNICIAN’S USE ONLY
NOTE: This sheet contains important Technical Service Data.
W10590893C Tech Sheet Do Not Remove Or Destroy
Control Assembly
Meter Check of Loads and Fuses
Fuse Service Check:
F1 = Small-triac load fuse
Check operation of loads during Service Diagnostics cycle.
■If any of the triac loads work, F1 fuse is OK.
■If all triac loads fail to work, F1 fuse could be open.
See “Fuse Resistance Check.”
Fuse Resistance Check:
1. Unplug dishwasher or disconnect power.
2. Measure resistance of fuse F1.
NOTE: The fuse is on the bottom of the Control Board but can be checked
from the top side. See “Control Pinout” diagram.
■If resistance is <3 Ω, fuse is OK.
■If resistance is >3 Ω, replace control.
What To Do If Fuse Open:
Inspect and check resistance of all loads on fuse. If any loads are open,
shorted, or have evidence of overheating or pinched wires, replace loads
and/or repair wires.
DANGER
Electrical Shock Hazard
Only authorized technicians should perform diagnostic
voltage measurements.
After performing voltage measurements, disconnect
power before servicing.
Failure to follow these instructions can result in death
or electrical shock.
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
SPECIFICATIONS
Electrical Supply:
(Under load) 60 Hz, 120 VAC
Lower Spray Arm Rotation:
25 to 40 rpm
Supply Water Flow Rate:
To fill 2 qt (1.9 L) in 27 seconds, 120 psi maximum, 20 psi minimum.
Upper Spray Arm Rotation:
25 to 35 rpm
Supply Water Temperature:
120°F (49°C) (Before starting a cycle, run water from sink faucet until hot.)
REPAIR KITS
Vinyl Touch-up Kits:
675576 (Blue), 676453 (White), 676455 (Gray)
Water Charge:
1.3 gal. (4.8 L) first fill (approximate), 1.1 gal. (4.3 L) other fills
Voltage Measurement Safety Information
When performing live voltage measurements, you must do the following:
■ Verify the controls are in the off position so that the appliance does not start when energized.
■ Allow enough space to perform the voltage measurements without obstructions.
■ Keep other people a safe distance away from the appliance to prevent potential injury.
■ Always use the proper testing equipment.
■ After voltage measurements, always disconnect power before servicing.
Control is
mounted to
console by
snaps along
side and top
and/or screw
tabs along top.
Connector brace locks in connectors.
NOTE: Reinstall brace and box after service if removed.
Pinch to Release
Connector Box (Must release
connector brace to remove box
over power connectors.)
Rotate
Push to Release
Pin 1
Pin 1
Rast Connector Pinout

2
Wiring Diagram
Schematic shown with door switch and all other normally open contacts open.
*Denotes energy-efficient components. Do not substitute.
Micro Pin
Micro Pin
Htr-N Relay
K4
Htr-L1 Relay
K2
432 1
P4
BU/W
BU/R
BK
W
Heater
Line N
H. L. Stat
BK
W
Line N
* Electronic Control
PC Board 6" (150 mm) x 3
³⁄₈
" (86 mm) max.
2-sided, PCB material CEM3
Motor Sense Circuit is different for High and Low motors.
Micro Pin
Motor Relay
K3
Pilot Relay
K1
Sense
Micro Pin
P5 21
P14
Fuse F1
Fuse
F2 Motor Fuse (Optional)
Turq. (LBU)
Turq. (LBU)
P14-1
P14-2
L1 N
1
2
3
1 PH Sync Wash Motor Pump
3 Watt Power Supply
VEE
VDD
Ref
(-12V)
(-5V)
(N)
Return line from -12V relay coils goes through door switch.
Load (current) sensing of drain triac, small triac loads, and vent for self diagnostics.
Door open detection
Overfill Detection
BR
BR
BR
BR
BR
BR
P6-1
P6-3
P6-4
P6-6
P6-7
P6-9
P6
BU
BU
BU
BU
P7-1
P7-3
P7-4
P7-6
P7 P9 P11 P12
P9-3
P9-1
P9-5
P9-6
P11-2
P11-1
P11-3
P11-4
P12-2
P12-1
P12-3
P12-4
P12-5
P12-6
V
V
V
V
R
R
R
R
Y
Y
Y
Y
Y
Y
* Fill Valve
Overfill (Float) Switch
Drain Motor
P3 P1
P1
P1
P3
P3
Vent Wax Motor
Some models
Spare Load
(Diverter) Some Models
P5 P1
Door Switch
P3 P1 P3
P3
P5
P1
P1
P1
Dispenser Solenoid
or
Dispenser Wax Motor
Spare Sensor
Future Models
Some models
Most models
Spare Sensor (Diverter Position)
NTC Thermistor
* O.W.I. (NTC, Foam, and Turbidity Sensor) or NTC/Turbidity Sensor
Some models
Analog Input
12V
Digital Input NTC
Input
Opt Sig
Foam Drive
Turbo Drive
P2
12 3 4In factory programming
(on top surface of PCB). -12V Beeper Some models
VDO
Ref
Integrated User Interface
Programs
5 keys, 14 LEDs max. Max. possible
Option A Option B Start
Resume
Cancel Drain
Status
GY/BU Optional Wide Bus Connector
Future Models P3
1
2 3 4 5 6
7
Temporary connection port for development tools (and future service tools).

3
Service Diagnostics Cycle
Service Diagnostics Cycle Notes:
Customer Cycle Operation
To quickly advance through customer cycles, invoke the Rapid Advance
mode by pressing HIGH TEMP - HEATED DRY - HIGH TEMP - HEATED DRY,
after starting the cycle. Then, press START/RESUME to advance through
cycle intervals.
NOTE: Rapid Advance mode is automatically enabled in the Service Diagnostic
cycle but must be manually invoked in customer cycles.
18 17 16 15 14 13 12 11 10 9 876 54321
INTERVAL
CYCLE, OPTION, AND STATUS LEDs
CYCLE 1
CYCLE 2
CYCLE 3
HI TEMP
CLEAN
ALL OTHER CYCLE, OPTION AND STATUS LEDs
NOTES 3, 5
INTERVAL TIME (min:sec) TOTAL TIME: 20:52
SOIL SENSING INTERVALS AND SENSOR CHECKS
THERMISTOR (TEMPERATURE SENSOR) CHECK INTERVAL. TURN CLEAN LED ON
IF TERMISTOR IS IN NORMAL TEMPERATURE RANGE: 32˚F (167˚C). 3
NOTE
LOADS
PILOT RELAY
FILL
WASH MOTOR
DISPENSER (DETERGENT/RINSE AID)
DRAIN MOTOR
HEATER
SERVICE DIAGNOSTICS NOTES
CY1
HIT
0:06
1:21
CUSTOMER ERROR 1
HIT
1:21
CUSTOMER ERROR 2
1:21
CUSTOMER ERROR 3
CUSTOMER ERROR 4
HIT
1:21
HIT
0:10
HIT
0:55
PLT
FIL
0:05
PLT
FIL
WSH
HIT
0:40
PLT
FIL
WSH
0:05
PLT
HIT
1:00
PLT
WSH
DSP
2:00
PLT
WSH
HIT
3:00
PLT
1:00
PLT
WSH
HIT
PLT PLT
HTR
HIT
DRN
HIT
SERVICE ERROR 1
SERVICE ERROR 2
S
T
A
N
D
B
Y
211
11
4
5
4
3
11
START/RESUME
CY1 CY1 CY1 CY1 CY1 CY1 CY1
CY2 CY2 CY2 CY2 CY2 CY2 CY2 CY2 CY2 CY2 CY2
CY3 CY3 CY3 CY3 CY3 CY3 CY3 CY3
STASTA STA STA STA STA STA STA STA STA STA STA STA STA STA STA STA STA
CLN CLN CLN CLN CLN CLN
CLN
(CLN)
(CLN)
ALL
1:00 3:00
1:21
1:21
THR
DRN
HTR
3
1To invoke the Diagnostics Cycle, perform the following while in standby:
■Press any 3 keys in the sequence 1-2-3-1-2-3-1-2-3
with no more than 1 second between keys.
■The Service Diagnostics Cycle will start when the door is closed.
■To rapid advance 1 interval at a time, press the Start/Resume key.
Rapid advance may skip sensor checks as some checks require
2 complete intervals.
NOTE: While in the Diagnostic Cycle, the Start/Resume feature
is turned off (for example, Auto Resume after door interrupts)
and the Start/Resume key becomes an individual advance key.
■Invoking Service Diagnostics clears all status and last ran
information from memory and restores defaults.
■Drain and wash motors will pulsate on and off.
■Last ran cycles and options returned to default.
■Last ran delay returns to the lowest delay increment.
■Operating state returns to Standby upon completing
or terminating the Service Diagnostics Cycle.
2Turn on all LEDs immediately upon receiving entry sequence (even
if door is open) for 5 seconds as a display test. Turn off all LEDs
for 1 second prior to reporting customer error history.
3Thermistor (temperature sensor if present) checks:
■Turn Clean LED on if thermistor is in its normal temperature
range of 32°F to 167°F (0°C to 75°C).
4Cycle 2 and Hi Temp LEDs flash in this interval. Press Cycle
Select key in this interval to clear customer error history.
5Turn on Clean LED in this interval if dispenser current detected
in previous interval.

4
Control Pinout
Metering of Triac Loads
Load must be connected for triac to operate correctly.
Meter checks best made at the control.
See illustration below and “Dishwasher Strip Circuits.”
Dishwasher Strip Circuits
The following individual circuits are for use in diagnoses. Do not continue
with the diagnosis of the appliance if a fuse is blown, a circuit breaker is
tripped, or if there is less than a 120-volt power supply at the wall outlet.
■Unplug dishwasher or disconnect power.
■Perform resistance checks. To check resistance
of a component, disconnect harness leads first.
Door Switch
Wash/Rinse
Water Heating/Heat Dry
Pump is washing and control monitors temperature during water heating periods (see “Wash/Rinse” and “Water Temperature Sensing” circuits).
Ω of F1 Triac Fuse
P4
-4 -3 -2 -1 -2 -1 -2 -1 -1- -3 & 4- -6 & 7- -9 -1 -3 & -4- -6 1- -3- -5 -6 -1 -2 -3 -4 -1 -2 -3 -4 -5 -6
P12
Y
P11
R
P9
V
P7
BU
P6
BR
P14
Turq
(LBU)
P5
12V
Electronic Control
P9-6 VV
N.O.
Pin 1 Pin 3
Door Switch
P9-5
Door
Switch
Sensing
Input
(To Heater)
N.O. N.O. N.O. N.O.
(To Wash Motor,
Vent, and Triac Loads)
(To Heater) (To Wash Motor)
Heater (N) Relay
K4
Electronic Control
K1 K2 K3
Pilot (L1) Relay Heater (L1) Relay Motor (N) Relay
Micro Pin Micro Pin Micro Pin Micro Pin
L1
BK P4-2 P14-2
N.O.
Pilot L1 Relay
(Also see Door
Switch circuit.)
K1
Fuse
F1
Electronic Control Electronic Control
Turq
(LBU)
Turq
(LBU)
Pin 3 Pin 1
1-PH Sync
Wash
Motor
P14-1 N.O.
K3
Motor Relay
(Also see Door
Switch circuit.)
W
N
P4-1
Motor Power
L1
BK
BK N.O.
K2
Heater L1 Relay
(Also see Door
Switch circuit.)
Electronic Control Electronic Control
P4-2 P4-3 BU/R
N.C.
Hi-Limit
Thermostat
Opens at
171˚F - 181˚F
(77˚C - 83˚C)
BU/R BU/W P4-4
N.O.
P4-1
W
N
K4
Heater N Relay
(Also see Door
Switch circuit.)
Heater

5
Fill
Drain
Dispenser (Detergent and Rinse Aid)
L1
BK P4-2
Use P5-2 as test
point for fuse F1.
N.O.
K1 Pilot L1 Relay
(Also see Door
Switch circuit.)
Fuse
F1
Electronic Control Electronic Control
Test hole for P6-3 and P6-4 may crowd P6-6 and P6-7.
Recommend using test hole for P7-3.
P5-2
P6-4
P7-3
BR BR BR BR
Float
(In normal position
holds switch closed.)
N.O.
Pin 3 Pin 1
Overfill
Float Switch
P6-6 P6-7
Float Switch
Input
Pin 3 Pin 1 P6-9 P4-1 W
N
Triac
Electronic Control
L1
BK P4-2
N.O.
K1
Pilot L1 Relay
(Also see Door
Switch circuit.)
Fuse
F1
Electronic Control Electronic Control
Use P5-2 as test
point for fuse F1.
Test hole for P6-3 and P6-4 may crowd P6-1.
Recommend using test hole for P7-3.
P5-2
P6-3
P7-3
BR BR
Pin 1 Pin 3
P6-1 P4-1
Triac
W
N
L1
BK P4-2
P5-2
P9-3
P7-3
P9-1 P4-1
N.O.
K1
VVW
N
Fuse
F1
Use P5-2 as test
point for fuse F1.
Pilot L1 Relay
(Also see Door
Switch circuit.)
Test hole for P9-3 may crowd P9-1.
Recommend using test hole for P7-3.
Pin 1 Pin 3
Electronic Control Electronic Control
Triac

6
Service Diagnostics with Error Codes
Entry sequence: Press any 3 keys in the sequence 1-2-3-1-2-3-1-2-3 with no more than 1 second between key presses.
NOTE: Some models have replaced the “Clean” LED with “Complete.”
NOTE: Once error codes are extracted, refer to the “Service Error Codes Table” section to diagnose and correctly resolve the root cause condition.
DISPLAY TEST - ALL LEDs ON INTERVAL 18
ERROR 1 - MOST RECENT INTERVAL 17
Clean LED
will flash
FUNCTION
code. Pause
2 sec.
Clean LED
will flash
PROBLEM
code. Pause
5 sec.
Repeat
3 times
unless
advanced
by Start/
Resume
key.
If no error, Clean
LED will stay on
solid for 5 seconds.
If no error, Clean LED
will stay on solid for
5 seconds.
ERROR 2 INTERVAL 16
Clean LED
will flash
FUNCTION
code. Pause
2 sec.
Clean LED
will flash
PROBLEM
code. Pause
5 sec.
Repeat
3 times
unless
advanced
by Start/
Resume
key.
If no error, Clean
LED will stay on
solid for 5 seconds.
If no error, Clean LED
will stay on solid for
5 seconds.
ERROR 3 INTERVAL 15
Clean LED
will flash
FUNCTION
code. Pause
2 sec.
Clean LED
will flash
PROBLEM
code. Pause
5 sec.
Repeat
3 times
unless
advanced
by Start/
Resume
key.
If no error, Clean
LED will stay on
solid for 5 seconds.
If no error, Clean LED
will stay on solid for
5 seconds.
ERROR 4 - OLDEST INTERVAL 14
Clean LED
will flash
FUNCTION
code. Pause
2 sec.
Clean LED
will flash
PROBLEM
code. Pause
5 sec.
Repeat
3 times
unless
advanced
by Start/
Resume
key.
If no error, Clean
LED will stay on
solid for 5 seconds.
If no error, Clean LED
will stay on solid for
5 seconds.
10 seconds pause
Hi Temp LED will be on
INTERVAL 13
Press Cycle Select key to clear errors.
Cycle will advance to next interval
automatically when errors have been cleared.
Service Diagnostics Cycle
Turns on loads and checks sensors.
INTERVAL 12-3
SERVICE CYCLE ERROR 1 INTERVAL 2
Clean LED
will flash
FUNCTION
code. Pause
2 sec.
Clean LED
will flash
PROBLEM
code. Pause
5 sec.
Repeat
3 times
unless
advanced
by Start/
Resume
key.
If no error, Clean
LED will stay on
solid for 5 seconds.
If no error, Clean LED
will stay on solid for
5 seconds.
SERVICE CYCLE ERROR 2 INTERVAL 1
Clean LED
will flash
FUNCTION
code. Pause
2 sec.
Clean LED
will flash
PROBLEM
code. Pause
5 sec.
Repeat
3 times
unless
advanced
by Start/
Resume
key.
If no error, Clean
LED will stay on
solid for 5 seconds.
If no error, Clean LED
will stay on solid for
5 seconds.
CLEAN
CLEAN
CLEAN
CLEAN
CLEAN
CLEAN
CLEAN
CLEAN
CLEAN
CLEAN
CLEAN
CLEAN

7
FOR SERVICE TECHNICIAN’S USE ONLY
Service Error Codes Table
Example: 6-1 means “Inlet Water” function, “Low / No Water” problem.
Function
Code
Problem
Code
Causes What to Check
1-
Control
1-
Pilot
Stuck On
Control
detected K1
pilot relay
stuck closed.
1. Unplug dishwasher
or disconnect power.
2. Check all loads on K1
Pilot Relay for shorts.
3. Replace control and
all shorted components.
2-
Control
Software
Issue
Damaged
or corrupted
memory on
control board.
Incompatible
software
components
inside micro.
1. Unplug dishwasher
or disconnect power.
2. Replace control board.
2-
User
Interface
1-
Stuck
Key
Control
detected stuck
key(s) in keypad
or keypad
connection.
NOTE: If any
keys are stuck,
the stuck key
will be ignored
and an error
recorded to the
service history
but no alert to
customer.
Check responsiveness
of each key.
If some keys do not
respond:
- Unplug dishwasher
or disconnect power.
- Disassemble door
and inspect for correct
assembly of control,
console, and button tree.
- Adjust assembly to
eliminate stuck keys,
reassemble door and
test each key.
- If key(s) still stuck/
unresponsive,
replace control.
3-
Ther-
mistor/
OWI
1-
Open
Open connector
or component in
Temperature
Sensing circuit.
Open or faulty
temperature
sensor.
Temperature
sensor input on
control.
1. Check operation of
temperature sensor in
Service Diagnostics cycle.
2. Unplug dishwasher
or disconnect power.
3. Check all components
and connections in the
Temperature Sensing
circuit with meter.
2-Shorted Incoming water
temperature
above 167°F
(75°C).
Shorted
connection or
component in
Temperature
Sensing circuit.
Shorted or faulty
temperature
sensor.
Temperature
sensor input
on control.
1. Check incoming water
temperature.
2. Check operation of
temperature sensor in
Service Diagnostics cycle.
3. Unplug dishwasher
or disconnect power.
4. Check all components
and connections in the
Temperature Sensing
circuit with meter.
3-
Failed
Calibra-
tion
1. OWI failure. 1. Check all connections in
Soil Sensing circuit.
2. Check OWI lens surface.
clean if needed.
3. Run Service Diagnostics
to check OWI operation.
OWI should see low soil
with clear water. Unplug
dishwasher or disconnect
power and replace OWI or
control if needed.
NOTE: Run diagnostics
after installing OWI to force
calibration on next regular
wash cycle.
3-
Ther-
mistor/
OWI
(cont.)
3-
Failed
Calibra-
tion
(cont.)
2. Drain hose
check valve
not sealing.
Dirty water backs into
dishwasher after draining.
1. Disconnect drain hose
at plumbing connection.
2. Elevate hose above
dishwasher and fill with
water. If water flows into
dishwasher, replace entire
drain loop (install as high
as possible and attach
to underside of countertop
if possible).
4-
Wash
Motor
3-
Motor
Not
Running
1. Loose
connection in
Motor circuit
and/or faulty
wash motor.
1. Check operation of wash
motor during diagnostics.
2. Unplug dishwasher
or disconnect power.
3. Check resistances
of connections in the
Wash circuit.
- Check/fix loose
connections or replace
wash motor.
2. Control Motor
Drive circuit or
Sense circuit.
1. Unplug dishwasher
or disconnect power.
2. If meter check of Wash
Motor circuit shows normal
resistance and still not
getting power to the wash
motor, replace control.
3. Open fuse on
control.
Refer to “Fuse Service
Check” in “Meter Check of
Loads and Fuses” section.
5-
Door
Switch
1-
Door
Stuck
Open
1. Door was not
latched within
4 seconds of
pressing the
Start/Resume
key.
Instruct customer. Refer
to Use and Care Guide.
2. Loose
connection in
Door Switch
circuit and/or
door switch
contacts stuck
open and/or
door switch
contacts stuck
open and/or
door switch not
making contact:
- Sloppy door
latch assembly
(which can be
aggravated by
high door
closure force,
keeping strike
plate from fully
seating).
- Door switch
(high
resistance).
1. Check strike plate
and door closure force.
Verify door seal is seated
properly. Check for
interference between
dish racks and door. Try
bending strike plate down
for better engagement.
2. Unplug dishwasher
or disconnect power.
3. Check resistances
of door switch contacts
and all connections in the
Door Switch circuit while
opening and closing the
door latch.
- If high resistance with
door closed, check/fix
loose connections.
4. Measure resistance
of door switch contacts
while checking mechanical
operation of latch
assembly. Check for
broken plastic pieces
on latch assembly.
Replace latch if faulty.
3. If none of
the above.
1. With door open, verify
13 VDC present across
P9-5 and P9-6
2. If no voltage present,
unplug dishwasher or
disconnect power and
replace control.
Function
Code
Problem
Code
Causes What to Check

8
5-
Door
Switch
(cont.)
2-
Door
Stuck
Closed
Control
programmed
to not start if
it suspects
the door switch
is stuck closed.
Control looks
for the door
switch to open
between cycles.
- Customer
didn’t open the
door between
cycles or door
switch contacts
stuck closed.
1. Open and close door
and then press Start/
Resume key. Instruct
customer to open door
between cycles.
2. Unplug dishwasher
or disconnect power.
3. Measure resistance
of door switch contacts
while checking
mechanical operation
of latch assembly.
6-
Inlet
Water
1-
Low/No
Water
(Mecha-
nical
Problem)
1. No water
to dishwasher.
Verify water supply is
turned on and supply
line adequate.
2. Bowls or
pots loaded
or flipped
and captured
wash water.
Instruct customer on
loading. Refer to Use
and Care Guide.
3. Drain loop
detached from
tub and/or
improper drain
connection.
Check for water
siphoning out of unit:
1. Allow dishwasher to
complete normal fill.
2. Drain for 5 - 10 seconds
by pressing CANCEL/
DRAIN.
3. Open door and confirm
water does not siphon out
of unit. If it does, confirm
drain loop is attached to
side of dishwasher and
drain hose is connected
to a drain at least 20"
(50.8 cm) off the floor.
4. Water
leaking from
dishwasher.
Check for leaks
under dishwasher.
5. Fill valve
or water line
plugged
with debris.
Tur n off water sup ply
to dishwasher, disconnect
water line to inlet valve,
and inspect/clean the
inlet screen of fill valve.
6. Overfill switch
stuck in
“Overfill”
position and/or
dishwasher
not level.
Check other error codes
to see if 6-4 also occurred.
See 6-4 Error Code.
7. Fill valve
electrical
problem.
Check other error codes
to see if 6-2 also occurred.
See 6-2 Error Code.
2-
Fill Valve
Electrical
Problem
1. Loose
connection in
Fill Valve circuit
and/or open Fill
Valve Solenoid.
Unplug dishwasher or
disconnect power and
check resistances of fill
valve solenoid and all
connections in the Fill
circuit with meter.
-Fix/replace open
connection/part.
2. Open fuse
on control to
fill valve.
Refer to “Fuse Service
Check” in “Meter Check of
Loads and Fuses” section.
3. Fill Valve
Drive circuit
on the control.
Unplug dishwasher or
disconnect power and
replace control.
Function
Code
Problem
Code
Causes What to Check
6-
Inlet
Water
(cont.)
3-
Suds/Air
in Pump
1. Too many
suds.
1. Allow unit to fill and
wash for 1 minute.
Open door and check
for excessive sudsing.
2. Confirm using proper
dishwasher detergent,
not hand detergent.
3. Check for excessive
rinse aid leakage.
2. Bowls or
pots loaded
or flipped
and captured
wash water.
Instruct customer on
loading. Refer to Use
and Care Guide.
3. Water
leaking from
dishwasher.
Check for leaks
under dishwasher.
4-
Float
Switch
Open
1. Overfill
switch stuck
in “Overfill”
position and/or
dishwasher
not level.
Remove any items stuck
under the float. Verify that
the float moves freely and
hear “click” of the switch
contacts. Check/adjust
levelness of the
dishwasher.
2. Drain hose
check valve
not sealing.
Water backs into
dishwasher after draining
and elevates water level.
1. Disconnect drain hose
at plumbing connection.
2. Elevate hose above
dishwasher and fill with
water. If water flows into
dishwasher, replace entire
drain loop (install as high
as possible and attach
to underside of countertop
if possible).
3. Fill valve
triac on
control shorted.
If still filling while door
is open, fill valve is
mechanically stuck open
(see below). If not filling
with the door open, check
operation in Service
Diagnostics Test Cycle.
Advance service cycle until
detergent dispenser opens.
Fill valve should be off.
Listen to see if dishwasher
is still filling. If still filling,
unplug dishwasher or
disconnect power and
replace control.
4. Fill valve
mechanically
stuck open.
Confirm dishwasher fills
while the door is open.
If yes, unplug dishwasher
or disconnect power, turn
off water to dishwasher,
replace fill valve, and
turn water back on.
5. Too many
suds.
1. Allow unit to fill and
wash for 1 minute.
Open door and check
for excessive sudsing.
2. Confirm using proper
dishwasher detergent,
not hand detergent.
3. Check for excessive
rinse aid leakage.
6. Open fuse
F1 to fill valve
and other
triac loads.
Check other error codes
to see if 6-2 also occurred.
See 6-2 error code for open
fuse checks.
Function
Code
Problem
Code
Causes What to Check

9
7-
Heating
1-
No Heat
1. Control
programmed to
disable heater,
but continue
running cycles,
if it detects a
water heating
problem.
Running diagnostics clears
the control and allows the
heater to turn on again.
Water heating problem
must be corrected, or the
control will disable the
heater again. See Heater
circuit problem below.
2. Heater circuit
problem:
- Open in heater
- Open
connection or
component in
Heater circuit.
1. Check operation
of heater in Service
Diagnostics cycle.
2. Unplug dishwasher
or disconnect power.
3. Measure resistance of
heater and all components
and connections in Water
Heating circuit/Heat Dry
circuit.
3. Heater Drive
circuit on the
control.
Unplug dishwasher or
disconnect power and
replace control.
2-
Heater
Stuck On
Heater Drive
circuit on the
control.
1. Unplug dishwasher
or disconnect power
and replace control.
2. Inspect Heater and
connections for
overheating/shorting.
If evidence of overheating
or shorts exists, replace.
8-
Draining
1-
Slow
Drain
1. Obstructed
drain hose or
path.
1. Unplug dishwasher
or disconnect power.
2. Check for blockages
from Sump Check Valve
to customer’s plumbing.
Potential items: plugged
garbage disposal or plug
not knocked out, drain loop
Check Valve stuck and/or
plugged hoses.
2. Drain Pump
impeller
fractured.
1. Unplug dishwasher
or disconnect power.
2. Remove Drain Pump and
check impeller (normally
there is some uneven
resistance). If it is stripped,
replace Drain Pump.
Function
Code
Problem
Code
Causes What to Check
8-
Draining
(cont.)
2-
Drain
Motor
Electrical
Problem
1. Loose
connection in
Drain Motor
circuit and/or
open Drain
Motor winding.
1. Check operation of drain
motor during diagnostics.
2. Unplug dishwasher
or disconnect power.
3. Check resistances
of drain motor winding
and all connections in
the Drain circuit.
- If high resistance, check/
fix loose connections or
replace drain.
2. Debris stuck
in drain motor
impeller.
1. Unplug dishwasher
or disconnect power.
2. Remove drain motor
and dislodge debris
from impeller.
3. Open fuse on
control to Drain
Motor.
Refer to “Fuse Service
Check” in “Meter Check of
Loads and Fuses” section.
4. Drain Motor
Drive circuit on
the control.
Unplug dishwasher
or disconnect power
and replace control.
3-
Drain
Stuck On
Drain Motor
Drive circuit on
the control.
1. Unplug dishwasher
or disconnect power
and replace control.
2. Inspect Drain Motor
and connections for
overheating/shorting.
If evidence of overheating/
shorting exists, replace.
10-
Other
1-
Dis-
penser
Electrical
Problem
1. Loose
connection in
Dispenser
circuit and/or
open dispenser
solenoid.
Unplug dishwasher or
disconnect power and
check resistances of
dispenser solenoid
and all connections
in the Dispenser circuit.
Fix/replace open
connection/part.
2. Open fuse on
control to
dispenser.
Refer to “Fuse Service
Check” in “Meter Check of
Loads and Fuses” section.
3. Dispenser
Drive circuit on
the control.
Unplug dishwasher
or disconnect power
and replace control.
Function
Code
Problem
Code
Causes What to Check

10
Troubleshooting Guide
NOTES:
■For resistance checks, refer to “Dishwasher Strip Circuits” section.
■For checking operation with diagnostics, refer to “Service Diagnostics
Cycle” section.
Customer
Description
Potential
Causes
Check Related
Error
Code
Clean LED
Flashes
Control
programmed
with self
diagnostics.
Read error code from the
dishwasher and refer to
“Service Error Codes Table.”
Run Service Diagnostics test
cycle to read full history of
error codes.
Won’t Run or
Power Up
(“Dead”
Keypad/
Console)
- No
operation
- No keypad
response
- No LEDs
or display
1. No power to
unit or bad
connection.
Check fuses, circuit
breakers, and junction
box connections.
2. Loose
connections in
dishwasher
power-up
circuit or
between
keypad(s) and
control.
1. Unplug dishwasher
or disconnect power.
2. Check continuity of power
connections to control.
3. Control
detected door
switch problem.
Refer to “Service
Error Codes Table.”
5-1
4. Mal-
functioning user
interface or
control.
If none of the above,
unplug dishwasher or
disconnect power and
check/replace control.
Won’t Run
and LED for
Start/
Resume Key
is Blinking
Slowly
1. By design,
if the door
is opened
or power is
interrupted
during a cycle,
the user must
press the Start/
Resume key
to resume
operation.
Instruct customer. Refer
to Use and Care Guide.
2. Start/
Resume key not
responding.
See “One or More
Keys Won’t Respond.”
3. Control
detected door
switch problem.
Refer to “Service
Error Codes Table.”
5-1
Won’t Run
and All LEDs
On
Software/
hardware
incompatibility
problem with
control.
Refer to “Service
Error Codes Table.”
1-2
Won’t Start
and Start/
Resume key
LED Flashes
3 Times
When Start/
Resume Key
is Pressed
Control looks
for door to open
between cycles:
- Customer
didn’t open
door between
cycles.
- Door switch
contacts stuck
closed.
Refer to “Service
Error Codes Table.”
5-2
Won’t
Accept Key
Presses and
Control Lock
LED On
Control Lockout
feature
accidentally
turned on by
customer.
Instruct customer. Press
and hold Control Lock key
or key with Control Lock
symbol next to it for
5 seconds to turn Control
Lock feature Off or On.
No Key and/
or LED
Functionality
1. Control
not properly
installed in
console,
avoiding button
actuation.
1. Unplug dishwasher
or disconnect power.
2. Disassemble console and
check that control housing is
fully attached to console and
aligned properly.
3. Adjust control or replace
missing parts as needed.
2. Missing
button tree or
light pipes.
1. Unplug dishwasher
or disconnect power.
2. Disassemble console
and check for presence
of light pipe and button
tree plastic parts.
3. Verify that light pipe
and button tree are not
broken and that they
are aligned correctly.
4. Replace missing parts
as needed.
Some Keys
Work But
One or More
Keys Won't
Respond
Stuck key/short
circuit(s) in keys
or in control's
input lines that
read the keys.
Refer to “Service
Error Codes Table.”
2-1
Unusual
Key/LED
Behavior or
LEDs Do Not
Tur n On
Correctly
When Keys
Are Pressed.
Control
software does
not match
hardware or
panel.
Check function of all
keys and LEDs in the UI.
If no evidence of stuck
keys (see above), unplug
dishwasher or disconnect
power and replace control.
LEDs and/or
Displays
Run For
Short Time
(but No
Loads
Running)
and then
Shuts Off
1. Unit is in
Sales Demo
mode.
Check operation of Cancel
key. If there is no Cancel LED
response to multiple Cancel
key presses, the control is
likely in Sales Demo Mode.
Run Service Diagnostics
Cycle to clear Demo mode.
2. Open F1
(triac load fuse)
on control
disabled loads.
Refer to “Fuse Service
Check” in Meter Check of
Loads and Fuses” section.
Customer
Description
Potential
Causes
Check Related
Error
Code

11
Long Cycles
and/or Stuck
in Certain
Part of Cycle
1. As part
of normal
operation, the
dishwasher
pauses 2 or
3 times during
the cycle for
thermal
holds and
advances once
temperature
is met.
Instruct customer. Explain
thermal holds and how
the cycle pauses when
they occur.
2. Suds/air in
pump requires
repeated wash
periods.
Refer to “Service
Error Codes Table.”
6-3
3. Motor
problems force
cycle to start
and stop
repeatedly.
Refer to “Service
Error Codes Table.”
4-3
4. A water
heating
problem could
cause long
cycles but will
typically cause
a “water
heating fault.”
Refer to “Service
Error Codes Table.”
7-1
5. Heater takes
a long time to
heat water with
low voltage.
Check for at least 100 VAC
at power source.
6. Incoming
water under
84°F (29°C).
1. Be sure dishwasher
is connected to the hot water
supply.
2. Confirm temperature
at sink (recommend 120°F
[49°C]). Instruct customer to
run water at sink before
running dishwasher.
3. Unplug dishwasher
or disconnect power
and check all connections
and measure resistance
in Temperature Sensing
circuit. Replace OWI if
resistance is high.
Can Start a
Cycle But
Runs for
Only a Short
Time - Does
Not
Complete
Cycle (Clean
LED or
Completed
May Blink)
1. Control
canceled cycle
due to error
detected with
wash motor.
Refer to “Service
Error Codes Table.”
4-3
2. Unit Is In
Sales Demo
mode.
Run Service Diagnostics
Cycle to clear demo mode.
Will Not
Drain or
Excess
Water Left in
Unit
NOTE:
Check error
history. If no
error codes
for electrical
problems,
problem is
mechanical.
Do not
replace
control.
1. Drain loop
check valve
not sealing.
1. Disconnect drain hose
at plumbing connection.
2. Elevate hose above
dishwasher and fill with
water. If water flows into
dishwasher, replace entire
drain loop (install as high
as possible).
2. Customer
misunderstands
water level after
drain.
Instruct customer. Sump
will normally have about 1"
(2.4 cm) of water remaining
after cycle.
3. Draining
problem.
Refer to “Service
Error Codes Table.”
8-1
8-2
Customer
Description
Potential
Causes
Check Related
Error
Code
Detergent
Not
Dispensing
or Detergent
Left In
Dispenser
NOTE:
Check error
history. If no
error codes
for electrical
problems,
problem is
mechanical.
Do not
replace
control.
1. Item in lower
rack blocked lid
or blocked
spray of water
to dispenser.
Instruct customer
on proper dish loading.
2. Mechanical
binding of
dispenser lid.
1. Unplug dishwasher
or disconnect power.
2. Check/replace dispenser.
3. Lid latch
binding due
to excess
detergent in
mechanism.
Instruct customer on
proper dispenser filling.
4. Dispenser
electrical
problem.
Refer to “Service
Error Codes Table.”
10-1
5. Control
canceled
cycle before
dispensing
due to error
detected with
wash motor.
Refer to “Service
Error Codes Table.”
4-3
Poor Wash 1. Cycle
selection of
customer not
appropriate for
dish load.
Instruct customer on cycle
selection. Recommend
“High Temp” option for
wash performance boost.
2. Plugged
or damaged
screens.
Inspect following three
screens:
- Filter cup coarse screen.
- Filter cup fine screen.
- Sump fine screen.
3. Spray arms
not rotating.
1. Check if arms blocked
by dish item. Instruct
customer. May also have
restricted movement due
to misalignment of the
upper spray arm water
delivery system.
2. Check nozzles. If plugged,
clean nozzles and confirm
filters installed properly.
4. Poor wash
due to draining
dispensing,
and/or
temperature
problem.
See “WIll Not Drain or Excess
Water Left In Unit” or
“Detergent Not Dispensing
or Detergent Left In
Dispenser,” or details on
temperature sensing in
“Long Cycles and/or Stuck
In Certain Part Of Cycle.”
5. Control
canceled cycle
due to error
detected with
wash motor.
Refer to “Service
Error Codes Table.”
4-3
6. Heating
problem.
Refer to “Service
Error Codes Table.”
7-1
Film or
Spots On
Glasses
and/or
Dishes
1. Customer not
using rinse aid
or dispenser
empty.
Check rinse aid gauge level
on dispenser. Instruct
customer how to fill and
monitor add/use rinse aid.
2. Rinse aid
dispenser
problem.
Refer to “Service
Error Codes Table.”
10-1
3. Hard water
leaving film on
dishes.
Check water hardness.
If hard, instruct customer
to use maximum detergent or
try pouring ¹⁄₄ cup (60 mL) of
Glass Magic into bottom of
dishwasher. Also recommend
1 Hour Wash cycle. To clean
the dishwasher, recommend
running with 1 cup (250 mL)
of white vinegar sitting
upright in upper rack.
Customer
Description
Potential
Causes
Check Related
Error
Code

12
Film or
Spots On
Glasses
and/or
Dishes
(cont.)
4. Detergent
carryover.
Check water hardness.
If below 10 grains, then
instruct customer to use less
detergent and recommend
the 1 Hour Wash cycle.
5. Etching of
glass from too
much detergent
at too high of
temperature.
Check water hardness.
If below 10 grains, then
instruct customer to use less
detergent and recommend
the 1 Hour Wash cycle.
6. Diverter
problem.
Refer to “Service
Error Codes Table.”
9-1
9-2
7. Drain loop
check valve
not sealing.
1. Disconnect drain hose
at plumbing connection.
2. Elevate hose above
dishwasher and fill with
water. If water flows into
dishwasher, replace entire
drain loop (install as high
as possible).
Poor Dry 1. Customer
not using rinse
aid and/or
dispenser
empty.
Check rinse aid gauge level
on dispenser. Instruct
customer how to fill and
monitor add/use rinse aid.
2. Customer not
using heated
dry option.
Recommend use of Heated
Dry to customer.
3. Heating
problems.
Refer to “Service
Error Codes Table.”
7-1
4. Rinse aid
dispenser
problem.
Refer to “Service
Error Codes Table.”
10-1
5. Control
canceled cycle
due to error
detected with
wash motor.
Refer to “Service
Error Codes Table.”
4-3
Sanitized
LED Blinks
or
Incomplete
Sanitization
Message at
End of Cycle
(Control
Could Not
Confirm
Sanitization
Achieved)
1. Door opened
during final
rinse or dry.
Instruct customer.
2. Incoming
water under
84°F (29°C).
1. Be sure dishwasher
is connected to the hot water
supply.
2. Confirm temperature
at sink (recommend 120°F
[49°C]). Instruct customer to
run water at sink before
running dishwasher.
3. Unplug dishwasher
or disconnect power
and check all connections
and measure resistance
in Temperature Sensing
circuit. Replace OWI if
resistance is high.
3. Line voltage
too low to heat
fast enough.
Check power source.
Confirm at least 100 VAC.
4. Heating
problem.
Refer to “Service
Error Codes Table.”
7-1
5. Intermittent
door switch/
latch
connection.
See same checks as for
5-1 error. Refer to “Service
Error Codes Table.”
Customer
Description
Potential
Causes
Check Related
Error
Code
Melted
Dishware
and/or Spray
Arm and/or
Dishwasher
Always Hot
1. Customer
uses non-
dishwasher
safe dishes or
loads directly
over heater.
Instruct customer.
2. Water heater
displaced from
mounting clip
and/or pulled
off center.
Inspect heater. Adjust back
into position if needed.
3 Water heating
problem -
heater stuck on.
Refer to “Service
Error Codes Table.”
7-2
Noisy
Operation
1. Spray arm
stalled or
blocked and
spraying on the
door.
- Instruct customer
if blocked.
- Check spray arm rotation
and inspect for plugged
nozzles. If plugged, clean
nozzles and confirm filters
are installed properly.
2. Motor
problems force
cycle to start
and stop
repeatedly.
Refer to “Service
Error Codes Table.”
4-3
3. No or low
water.
Refer to “Service
Error Codes Table.”
6-1
6-2
6-3
6-4
Leaks or
Drips On
Cabinet or
Floor
1. Too many
suds.
1. Allow unit to fill and wash
for 1 minute. Open door and
check for excessing sudsing.
2. Confirm using proper
dishwasher detergent,
not hand detergent.
3. Check for excessive
rinse aid leakage.
6-3
6-4
2. Leaking
dishwasher.
Check door/tub gasket and
all water connections under
dishwasher. If leak triggers
low water error, then leak
is probably not from water
inlet connection.
Refer to “Service
Error Codes Table.”
6-1
6-3
3. Unit not level
(leaning
forward) and
water surges
over front lip
during cycle.
Check error history for float
error 6-4. Error 6-4 is likely
to occur if unit is significantly
unlevel and leaning forward.
Refer to “Service
Error Codes Table.”
6-4
4. Air pressure
surge when
open door and
immediately re-
close it while
dishwasher is
hot can force
droplets out the
vent duct.
Instruct customer to leave
door open a few minutes
before re-closing if opened
door while dishwasher is hot.
Customer
Description
Potential
Causes
Check Related
Error
Code
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