Maytag ACO1520AB Service Manual page 14

Troubleshooting Procedures
Check:
1. Touch Keypad.
Display does not
count down when
START is pressed.
continuity
indicated.
Unit operates.
No buzzer sound when
pressing control pad
between stages or at
the end of cooking.
16021668 Rev. 0
Is
YES
NO
Adjust or
replace door
sensing
switch.
Replace
circuit
board.
Measure resistance of
CN2 between pin 1 and
pin 3 with door closed.
Verify proper
connection of
ribbon
connector.
NO
Reconnect
ribbon connector
for proper
connection.
Verify normal
operation of
circuit board.
Unit operates.
14
Does ribbon
connector have
proper
connection.
YES
Replace
circuit
board.
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