H97
Proline
Inverter High Voltage Output Failure
Inverter-type Proline microwave stops heating and displays H97; fan and light may still run.
Advertisements
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.
Advertisements
Possible Causes
Shorted magnetron, Failed inverter module, Loose or burnt connector between inverter and magnetron, Faulty current-sense circuit on inverter
How to Fix / Troubleshooting
Critical safety warning: Inverter microwaves operate at very high voltage and frequency. Do not attempt internal repairs unless you are a trained technician.
User-level checks:
- Confirm that the unit powers on and the turntable and fan operate.
- Test with a cup of water; if it does not heat and H97 appears, discontinue use.
- Unplug the microwave and arrange professional service. Continued operation can damage the inverter and magnetron further.
Technician actions (for reference):
- Test the magnetron for shorts and proper resistance.
- Inspect and test the inverter module and wiring harness.
Advertisements
Repair Difficulty
Professional Required
5/5
Required Part
Inverter Power Board
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements