Maytag ACM0720AB - Page 20

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Troubleshooting Procedures
Trouble 4: Oven operates with little or no heat when operating.
Output
performance
is low.
Check the
power source
voltage.
Lower than
90% of rated
voltage.
Decrease in
power supply
voltage under
load.
Customer must
contact local
power company
or qualified
electrician.
Normal
Disconnect wire
leads from relay
RY2 and verify
on and off times.
Abnormal
Normal
Failed
printed circuit
board.
Replace
printed circuit
board.
Abnormal
Failed
magnetron.
Replace
magnetron.
Measure the
output power.