Microwave completely dead – no display, no lights, no response.
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.
Possible Causes
How to Fix / Troubleshooting
Safety First: Unplug the microwave. Internal fuses and thermal cutouts are near high-voltage components; exercise extreme caution.
User-level checks:
- Outlet test: Plug another appliance into the same outlet to confirm power. Check the home breaker or GFCI.
- Power cord: Inspect the Frigidaire microwave power cord for cuts or burns.
Advanced checks (technician recommended):
- Remove cabinet: Access the internal line fuse (usually near the power cord entry or noise filter board).
- Check fuse: Test the Frigidaire line fuse for continuity. If blown, investigate door switches and high-voltage components before replacing.
- Inspect thermal cutouts: Test cavity and magnetron thermal cutouts for continuity.
Note: Simply replacing a blown fuse without finding the cause can lead to repeat failures. Professional diagnosis is strongly advised.