7
FOR SERVICE TECHNICIAN’S USE ONLY
2-
User
Interface
(cont.)
1-
Stuck Key
(cont.)
Control detected
stuck key(s) in
keypad or keypad
connection.
NOTE:
If any keys
are stuck, the
stuck key(s) will be
ignored and an
error recorded to
service history, but
no alert to
customer. (cont.)
B. If control is not OK (still
sees stuck keys with keypad
unplugged), it will not turn on
drain motor. Wait for at least
10 seconds. If still no drain
response, then replace control
or LCD display module
(whichever one the keypad
was connected to).
2. If all keys appear OK or
intermittent, and keypad is
capacitive touch type, then:
- Verify tub brackets are screwed to
underside of countertop and not
hanging over keys (if screw head
too close, relocate screw to
alternate hole).
- Check for evidence of moisture or
debris on the surface of the keys.
If evident, clean and instruct
customer about keeping surface
clean.
- Check error code history for Fan
Error 10-3 as potential cause of
condensation on user interface.
- Verify presence of vent current if
model has a vent wax motor. Refer
to “Leaks or Drips On Cabinet or
Floor” in the “Troubleshooting
Guide” section.
2-
No
Response
from UI
User interface
cannot
communicate with
main control.
Loose user
interface
connection.
1. Unplug dishwasher or disconnect
power.
2. Check the connection between
the UI and the control P1C
connector. If the connection(s) are
loose or if wires are loose or
damaged, reconnect, repair, or
replace as needed.
3. Refer to “Service Error Codes”
table for stuck key (2-1). Run the
diagnostic check, item (1).
- If drain motor turns on, replace the
console.
- If drain motor does not turn on,
replace the control.
3-
Thermistor
/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. Fix/
replace open connection/part.
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. Fix/
replace shorted connection/part.
(See OWI Sensor strip circuit.)
3-
Failed
Calibration
1. OWI failure.
1. Run Service Diagnostics to
check OWI operation. OWI should
see low soil with clear water.
2. Check OWI lens surface. Clean if
needed.
3. Unplug dishwasher or disconnect
power.
4. Check all connections in Soil
Sensing circuit with meter. Fix/
replace bad connection/part.
NOTE:
Run diagnostics after
replacing new OWI to force
calibration on next wash cycle.
Function
Code
Problem
Code
Causes
What to Check
3-
Thermistor
/OWI
(cont.)
3-
Failed
Calibration
(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 counter top 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 for 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.
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 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 with meter 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.
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. If it works
now, 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
(Mechanical
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.
Function
Code
Problem
Code
Causes
What to Check
