Proline
No Power – Primary Supply Failure
Microwave does not start at all; the display is blank and there are no lights or sounds when the door is opened.
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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
Blown internal line fuse, faulty mains power cord, defective noise filter board, failed control PCB power supply
How to Fix / Troubleshooting
Safety first: Unplug the microwave before any inspection.
User-level checks:
- Verify the wall outlet by plugging in another appliance.
- Check the household circuit breaker or fuse for the microwave's circuit.
- Inspect the power cord for visible damage, cuts, or burn marks. Do not use the microwave if the cord is damaged.
If the outlet and breaker are fine:
- The internal line fuse or noise filter board may have failed. Accessing these requires cabinet removal and should be done by a technician.
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Repair Difficulty
Hard
4/5
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