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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.
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.
SYMPTOM
CHECK FOR THE
FOLLOWING
REMEDY
1. A blown fuse or tripped circuit
breaker.
1. Replace the fuse or reset
the breaker.
2. Damaged or defective wiring.
2. Repair the wiring.
3. Defective timer contacts.
3. Replace the timer.
4. Improper motor resistances.
4. Replace the motor.
5. Defective door switch contacts.
5. Replace the door switch.
Dishwasher will not
operate when turned
ON.
6. Defective door latch.
6. Replace the door latch.
1. Defective heat selector switch.
1. Replace the heat selector
switch.
2. Heater element is open.
2. Replace the heater
element.
3. Defective timer contacts.
3. Replace the timer.
Dishwasher runs but
will not heat.
4. Damaged or defective wiring.
4. Repair the wiring.
1. Timer motor inoperative.
1. Replace the timer.
2. Damaged or defective wiring.
2. Repair the wiring.
Dishwasher runs but
will not stop.
3. Defective timer.
3. Replace the timer.
Dishwasher runs with
door open.
1. Defective door safety switch.
1. Replace the door safety
switch.
1. Defective motor bearings.
1. Replace the motor.
2. Knob position advanced beyond
fill.
2. Advance the knob to the
next wash cycle.
Motor hums but will
not start or run.
3. Defective motor capacitor.
3. Replace the motor
capacitor.
1. Improper motor voltage.
1. Replace the motor.
2. Motor shaft binding.
2. Replace the motor.
Motor trips out on
internal thermal
overload protector.
3. Motor windings shorted.
3. Replace the motor.
Repeated dishwasher
cycles.
1. Defective timer.
1. Replace the timer.
1. Timer motor is stalled or open.
1. Replace the timer.
2. Timer not providing power to timer
motor.
2. Replace the timer.
Timer does not
advance automatically.
3. Timer shaft binding or knob
interference to escutcheon.
3. Repair or adjust timer shaft
or knob.
Etching on glassware.
1. Soft water condition (Natural or
artificial).
Have a sample of the water
analyzed by the local water
department.
Dishwasher continues
to fill even though
there is no voltage to
the fill valve (flooding
condition).
1. Defective water fill valve.
1. Replace the water fill valve.
2. Debris buildup under the
diaphragm in the water fill valve.
2. Clean out the debris or
replace the water fill valve.
Summary of Contents for Monogram ZBD1800K Series
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