E-50
Frigidaire
High-Voltage System Protection Error
Microwave displays E-50 and may not heat or may shut down.
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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
Overheated magnetron, Open thermal cutout, Shorted high-voltage diode, Failing high-voltage transformer
How to Fix / Troubleshooting
Critical Safety Warning: High-voltage components are extremely dangerous. Only trained technicians should service them.
User-level steps:
- Allow cooling: Let the microwave cool for at least 30 minutes, then try again. Ensure vents and filters are clean.
- Check installation: Verify that the microwave has proper clearance and is not installed in a confined space without ventilation.
Technician-level:
- Test the Frigidaire magnetron, high-voltage transformer, HV diode, and thermal cutouts.
- Replace any failed component and verify safe operation.
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Repair Difficulty
Professional Required
5/5
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