Hotpoint
Intermittent Power Loss to Control Board
Microwave clock and settings reset randomly or after using high-power cooking.
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Safety Warning
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.
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Possible Causes
Loose power cord connection, Failing internal line fuse or fuse holder, Weak control board power supply, Overheating control board, Loose neutral or live connection on terminal block
How to Fix / Troubleshooting
Safety first: Unplug the microwave before internal inspection.
- Check outlet and plug: Ensure the plug fits snugly and the outlet is not loose.
- Inspect cord and strain relief: Verify the power cord is not being pulled or twisted at the entry point.
- Internal inspection: Remove the outer cabinet and check the line fuse, fuse holder, and wiring connections to the control board for looseness or discoloration.
- Control board: If connections are solid but resets continue, the main control board power supply may be failing and should be replaced.
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Repair Difficulty
Medium
3/5
Required Part
Main Control Board (PCB)
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