Troubleshooting Checklist - GE Monogram ZBD1800K Series Technical Service Manual

Troubleshooting Checklist

The troubleshooting checklist is common for all
dishwasher models. They use different parts to
accomplish the same thing and diagnosis will
remain similar.
When a problem arises, and a possible cause is
listed, follow the test and remove or replace
procedures as outlined in this Technical Service
Manual.
SYMPTOM
Dishwasher will not
operate when turned
ON.
Dishwasher runs but
will not heat.
Dishwasher runs but
will not stop.
Dishwasher runs with
door open.
Motor hums but will
not start or run.
Motor trips out on
internal thermal
overload protector.
Repeated dishwasher
cycles.
Timer does not
advance automatically.
Etching on glassware.
Dishwasher continues
to fill even though
there is no voltage to
the fill valve (flooding
condition).
The wiring diagram, schematic, and timer cycle
chart are a necessity when making electrical
checks. In most cases, an ohmmeter will handle
all the tests necessary.
To verify the setup of any particular cycle of
operation, refer to the Owner's Manual.
CHECK FOR THE
FOLLOWING
1. A blown fuse or tripped circuit
breaker.
2. Damaged or defective wiring.
3. Defective timer contacts.
4. Improper motor resistances.
5. Defective door switch contacts.
6. Defective door latch.
1. Defective heat selector switch.
2. Heater element is open.
3. Defective timer contacts.
4. Damaged or defective wiring.
1. Timer motor inoperative.
2. Damaged or defective wiring.
3. Defective timer.
1. Defective door safety switch.
1. Defective motor bearings.
2. Knob position advanced beyond
fill.
3. Defective motor capacitor.
1. Improper motor voltage.
2. Motor shaft binding.
3. Motor windings shorted.
1. Defective timer.
1. Timer motor is stalled or open.
2. Timer not providing power to timer
motor.
3. Timer shaft binding or knob
interference to escutcheon.
1. Soft water condition (Natural or
artificial).
1. Defective water fill valve.
2. Debris buildup under the
diaphragm in the water fill valve.
– 34 –
REMEDY
1. Replace the fuse or reset
the breaker.
2. Repair the wiring.
3. Replace the timer.
4. Replace the motor.
5. Replace the door switch.
6. Replace the door latch.
1. Replace the heat selector
switch.
2. Replace the heater
element.
3. Replace the timer.
4. Repair the wiring.
1. Replace the timer.
2. Repair the wiring.
3. Replace the timer.
1. Replace the door safety
switch.
1. Replace the motor.
2. Advance the knob to the
next wash cycle.
3. Replace the motor
capacitor.
1. Replace the motor.
2. Replace the motor.
3. Replace the motor.
1. Replace the timer.
1. Replace the timer.
2. Replace the timer.
3. Repair or adjust timer shaft
or knob.
Have a sample of the water
analyzed by the local water
department.
1. Replace the water fill valve.
2. Clean out the debris or
replace the water fill valve.