H97
Kenmore Inverter-Magnetron Communication or Power Fault

Microwave displays H97 and will not heat; fan and light may still operate.

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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

Failed inverter board, Shorted magnetron, Loose high-voltage wiring between inverter and magnetron, Overcurrent detected by inverter circuitry

How to Fix / Troubleshooting

Critical Safety Warning: H97 indicates a high-voltage/inverter issue. These components are extremely dangerous to service without proper training.

  • Do not attempt internal repair: Unplug the microwave and do not use it until serviced.
  • Check installation: Ensure the unit is properly ventilated and not exposed to excessive grease or moisture, which can contribute to failures.
  • Professional service: A technician will test the inverter and magnetron and replace the defective component(s).

Because of the risk of electric shock, H97 repairs should be left to professionals.

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Repair Difficulty

Professional Required 5/5

Required Part

Inverter Board
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