Monogram Control Board Power Supply Instability

Microwave clock loses time or resets intermittently without showing a PF code.

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

Weak internal power supply on control board, intermittent line voltage, loose power cord connection, failing line filter board

Safety: If you suspect wiring issues, consult an electrician.

Check outlet and plug: Ensure the plug fits tightly in the outlet and that there is no visible damage.
Monitor other devices: If other electronics in the home reset, there may be a broader power quality issue.
Control board: If only the microwave clock resets, the electronic control board or line filter board may be failing and should be replaced.

Medium 3/5

Electronic Control Board

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