Whirlpool DU800DWG Manual page 41

PRECAUTIONS TO BE OBSERVED WHILE TROUBLESHOOTING
Always check wiring harness and connectors before initiating any test procedures.
Disconnect electric power from the dishwasher before touching the printed circuit boards or re-seating wire connectors.
Voltage checks should be made by inserting meter probes beside the wires in the connector blocks with the electric power source on
and the connector block plugged in.
Resistance checks should be made on components with the electric power off and the connector blocks disconnected.
PROBLEM
Dishwasher does not run or
stops during a cycle
Dishwasher will not fill
Dishwasher will not drain
Dishwasher will not
dry dishes
TROUBLESHOOTING GUIDE
Models DP920PFG & DU920PFG
AND DIAGNOSING PROBLEMS
TROUBLESHOOTING GUIDE
POSSIBLE CAUSES
1. Door is not latching properly.
2. Child lock is "ON".
3. Wash Cycle not set properly.
4. Household fuse blown or circuit
breaker tripped.
5. Washer is not wired into a circuit with
proper voltage.
1. Overflow protection float is stuck in
"up" position.
2. Fill valve is inoperable.
3. Control board is inoperable.
1. Air gap (if installed) is clogged.
2. Pump motor is inoperable
3. Control board is inoperable.
1. Heater element burned out.
2. Hi-limit thermostat inoperable.
37
CORRECTION/TEST
1. Check to make sure handle link
is properly seated in door latch
assembly. Check that the door
switch is opening and closing
properly.
2. Turn child lock "OFF"
3. Review setting Wash Cycles in
the Use and Care Guide.
4. Have a qualified electrician check
the circuit breaker or fuse.
5. Have customer call a qualified
electrician.
1. Check that the overflow
protection float is free to move
"up" and "down". Check that the
overfill switch in opening and
closing properly.
2. Check for continuity between
contacts on fill valve.
3. Check for 110VAC between P2-5
and P12-3.
1. Follow air gap manufacturer's
direction for cleaning.
2. Disconnect pump motor from
wiring harness and check for
continuity between V & BU, V &
GY and V & Y.
3. Check for 110VAC between P10
and P3, P10 and P5 and P10
and P4.
1. Check for continuity between the
terminals of the heater element.
Check for 110VAC between P6
and P8.
2. Check for continuity between
terminals of the hi-limit
thermostat.