Maytag ACM0720AB - Page 19

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Troubleshooting Procedures
Trouble 3: Display shows all digits programmed, but does not start cooking when the
START pad is pressed.
Time does not
count down after
START pad is
pressed.
Check continuity
of secondary
switch with
door closed.
No
Continuity
Malfunction
of secondary
switch.
Replace the
fuse primary,
secondary
monitor
switches and
printed circuit
board.
Continuity
Check connection
between CN1
connector and
printed circuit board.
Continuity
No
Continuity
Failed
printed circuit
board.
Replace
printed circuit
board.
Loose
connection.
Connect
tightly.
Abnormal
Abnormal
Failed
fan motor.
Replace
fan motor.
Failed
oven light.
Replace
oven light.
Fan motor
or oven light
do not operate.
Check fan
motor.
Check oven
light.
Normal