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16 16026795 ©2006 Maytag Services
Trouble 5: No microwave oscillation even when oven light and fan motor operate.
Troubleshooting Procedures (Electronic Models)
No microwave
oscillation.
Disconnect wire
leads from relay
RY2 and verify
continuity of the
relay.
No
Continuity
Failed
controller.
Replace
controller.
Continuity
Check high
voltage
transformer.
Abnormal
Normal
Failed high
voltage
transformer.
Replace high
voltage
transformer.
Check high
voltage capacitor.
Abnormal
Normal
Failed high
voltage
capacitor.
Replace high
voltage capacitor.
Check high voltage
diode.
Abnormal
Normal
Failed high
voltage
diode.
Replace high
voltage diode.
Operates at
full power
when
programmed
for lower
power.
Abnormal
Failed
controller.
Replace
controller.
Check magnetron.
Abnormal Failed
magnetron.
Replace
magnetron.
Disconnect wire
leads from relay
RY2 and verify
continuity of the
relay.