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Reduced Heating Efficiency
Microwave light, fan, and turntable work but food heats unevenly or slowly
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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
Weak magnetron, Failing high-voltage capacitor, Faulty stirrer motor or stirrer fan, Turntable not rotating properly
How to Fix / Troubleshooting
Safety: Unplug the microwave before internal inspection.
User-level checks:
- Ensure the turntable rotates smoothly and is correctly seated on the coupler and roller ring.
- Avoid overloading the cavity; heat smaller portions and stir halfway through.
- Use microwave-safe containers and cover food to retain steam.
Technical checks:
- Inspect the stirrer fan or mode stirrer (if equipped) for obstruction or failure.
- Test the magnetron and HV capacitor for proper operation.
If heating remains weak, the magnetron or high-voltage components may need replacement by a professional.
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Repair Difficulty
Hard
4/5
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