OK
Intermittent Power Loss or Control Reset
Microwave clock resets or unit restarts randomly during 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 line filter board, Cracked solder joints on control PCB, Overheating control transformer
How to Fix / Troubleshooting
Safety: Unplug the microwave before internal inspection.
- 1. Check power cord and outlet: Ensure the plug fits snugly and the cord is not loose in the outlet.
- 2. Avoid shared high-load circuits: Do not run the microwave on the same circuit as heavy appliances.
- 3. Inspect internal connections: Remove the cover and check the line filter board and control PCB connectors for looseness or discoloration.
- 4. Reflow or replace: If you see cracked solder joints on the control PCB, reflow them or replace the board.
- 5. If resets occur only when hot: The control transformer or regulator may be overheating and require replacement.
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Repair Difficulty
Medium
3/5
Required Part
Line Filter Board
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