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3-13
© 1997 Whirlpool Corporation
Cooking Products Service Manual
Original March, 1997 4322167
Page 3-13
TEST PROCEDURE
OR CORRECTION
1. Blower motor.
2. Control board.
3. Open or loose wiring in
circuit to blower motor.
Blower motor will not oper-
ate.
1. Check blower motor.
2. Check control board.
3. Use ohmmeter to check
continuity, and repair
wiring.
1. Bulb burned out.
2. Control board.
3. Lamp sockets.
4. Open wiring between the
above components.
1. Check bulb.
2. Check control board.
3. Check lamp sockets.
4. Use ohmmeter to check
continuity, and repair
wiring.
Cooktop lamps do not come
on.
Oven heats too fast. 1. Line voltage is too high
(should be between 108-
and 132-volts AC).
2. Control board.
1. Use separate 15- to 20-
ampere circuit.
PROBLEM
POSSIBLE CAUSE
Oven cooks too slowly.
1. Line voltage is too low
(should be between 108-
and 132-volts AC).
2. User error.
1. Use separate 15- to 20-
ampere circuit.
2. Instruct user regarding
proper cooking times.
3. Check magnetron.
2. Check control board.
1. Shorted relay.
2. Control board.
Oven cooks on “HIGH” when
a lower cook power is se-
lected.
1. Check the control board.
2. Check control board.
3. Magnetron.
1. Open connection or
failed speaker.
2. Tones are programmed
out.
Speaker does not sound at
conclusion of cooking se-
quences, or after elapsed time
in Minute Timer.
1. Replace board.
2. Program tones back in.
(Touch and hold key #1
for 4-seconds).
1. Secondary interlock
switch.
2. Relay 2 is open.
3. High voltage compo-
nents.
1. Check secondary inter-
lock switch.
2. Check control board.
3. Check high voltage com-
ponents.
Oven runs but will not cook.