Hamilton Beach Intermittent Power or Control Board Fault

Microwave clock and settings reset randomly or the unit restarts during cooking.

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

Loose power cord connection, Failing control board power supply, Faulty outlet or wiring, Internal overheating of control board

Safety: Use caution when working with electrical outlets.

Steps:

Test the microwave on a different, known-good outlet.
Avoid using extension cords or power strips.
If resets continue, the control board power supply may be unstable.
Inspect the control board (qualified DIYers) for bulging capacitors or burnt components and replace the board if necessary.

Note: Frequent resets can also be caused by voltage fluctuations in the home; consider having an electrician check the circuit.

Medium 3/5

Electronic Control Board

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