MasterChef Intermittent Power or Control Reset

Microwave randomly resets, clock clears, or display turns off and back on during use.

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 noise filter board, Cracked solder joints on control board, Overheating control transformer

Safety first: Unplug the microwave before internal inspection.

Steps:

1. Check plug fit: Ensure the power plug fits snugly in the outlet and is not loose.
2. Avoid shared circuits: Do not run other heavy appliances on the same circuit while using the microwave.
3. Internal inspection (experienced DIYers): Inspect the noise filter board and control board for loose connectors or signs of overheating. Reseat all harnesses.

Next steps: If resets continue, the control board or noise filter may need replacement.

Medium 3/5

Noise Filter Board

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