Microwave runs but does not heat food; turntable, light, and fan operate normally with no error code.
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 warning: The high-voltage section is extremely dangerous. If you are not trained, limit yourself to external checks and call a professional for internal diagnosis.
User-level confirmation:
- Place a cup of water in the oven and run on HIGH for 1–2 minutes. If the water remains cold, there is a heating failure.
- Listen for the normal hum of the magnetron/transformer. A noticeably quieter operation may indicate the high-voltage system is not engaging.
Technician-level checks:
- Unplug the unit and remove the outer cabinet.
- Discharge the high-voltage capacitor using proper procedures.
- Test the magnetron, diode, capacitor, and transformer with a multimeter according to service manual specifications.
Corrective actions:
- Replace the failed component (magnetron, diode, capacitor, or transformer) with Magic Chef-approved parts.
- Inspect and repair any heat-damaged wiring or connectors.
Note: After repair, perform a heating test with water and check for abnormal noises or smells.