Monogram Stuck Relay or Door Switch Miswiring

Microwave light, fan, and turntable run when the door is closed but no cook cycle is set, or continue running after the cycle ends.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Stuck relay on control board, welded relay contacts, misadjusted door switch bracket, shorted door switch

Safety: Unplug the microwave immediately; this is an unsafe condition.

Do not use: Do not operate the microwave until the issue is corrected; there is a risk of unintended microwave generation.
Inspect door switches: A technician should verify correct installation and operation of all door interlock switches and brackets.
Control board inspection: The electronic control board should be checked for stuck or welded relays and replaced if necessary.

Professional Required 5/5

Electronic Control Board

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