Tech Sheet

8
Function
Code
Problem
Code
Causes What to Check
6-
Inlet
Water
(cont.)
4-
Float
Switch
Open
(cont.)
5. Too many suds. 1. Allow unit to ll and wash
for 1 minute. Open door and
check for excessive sudsing.
2. Conrm using proper
dishwasher detergent, not
hand detergent.
3. Disconnect power and replace
dispenser if excessive rinse
aid leakage is seen.
6. Open fuse F1 to
ll valve and other
triac loads.
Refer to “Fuse Service Check”
in “Meter Check of Loads and
Fuses” section.
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. Fix/
replace open connection/part.
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
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/x
loose connections or replace
drain motor.
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.
9-
Diverter
1-
Can’t
Find
Position
1. Corroded or
loose connection
in diverter sensor/
motor circuit, or
open/shorted
sensor/motor.
1. Check operation in Service
Diagnostics cycle. Listen for
cam clicking as it rotates or
inspect shaft with mirror to see if
rotating during diverter interval.
If rotating, it is likely the Sensor
circuit.
2. Unplug dishwasher or
disconnect power and check
connections in Diverter Sensor/
Motor circuit with meter. Fix/
replace open connections/parts.
3. Inspect diverter sensor
for evidence of water or
contaminants. If yes, replace.
Function
Code
Problem
Code
Causes What to Check
9-
Diverter
(cont.)
1-
Can’t Find
Position
(cont.)
2. Mechanical
binding of diverter
shaft/disc.
Check operation of
diverter motor during
diagnostics. Inspect
diverter shaft with mirror.
If motor appears to be
on (vibrates, hums), but
you see limited rotation,
replace diverter and seal.
3. Open fuse on
control to diverter
motor.
Refer to “Fuse Service
Check” in “Meter
Check of Loads and
Fuses” section.
4. Diverter Motor
Drive circuit on
the control.
Unplug dishwasher or
disconnect power and
replace control.
2-
Stuck On
Diverter Drive
circuit on the
control.
1. Unplug dishwasher or
disconnect power and
replace control.
2. Inspect diverter motor
and connections for
overheating/shorting. If
evidence of overheating/
shorting exists, replace.
3-
Disc
Missing
Control detected
diverter disc in
sump is missing.
Remove lower spray arm,
TurboZone assembly, rear
feed tube and outlet cover.
Verify the round diverter
disc is installed.
10-
Other
1-
Dispenser
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.
3-
Drying
Fan Error
1. Loose
connection in Fan
circuit, and/or
open fan motor.
Unplug dishwasher or
disconnect power and
check resistances of fan
motor and all connections
in the fan circuit. Fix/
replace open connections
or fan.
2. Fan Drive
circuit on the
control.
Unplug dishwasher or
disconnect power and
replace control.
FOR SERVICE TECHNICIAN’S USE ONLY