Amana Control Board Power Supply Instability

Microwave clock loses time or resets intermittently without showing PF; unit otherwise works.

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 capacitor, Loose neutral or ground connection, Intermittent line filter connection, Failing main control board

Safety First: Unplug the microwave before accessing internal components.

Check outlet stability: Ensure the outlet is not controlled by a wall switch and that there are no frequent power dips.
Inspect power cord and plug: Make sure the plug fits snugly in the outlet.
Internal inspection: A technician can inspect the control board for failing capacitors or loose connections and replace the board if necessary.

Hard 4/5

Main Control Board

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