H98
Maytag
Magnetron / Inverter Protection Error
Microwave displays H98 and does not heat; may stop shortly after starting.
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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
Shorted magnetron, Failed inverter board, Overcurrent condition in high-voltage circuit, Loose or burnt high-voltage wiring
How to Fix / Troubleshooting
Critical safety warning: High-voltage microwave repairs are hazardous. Do not attempt to service the magnetron or inverter unless you are qualified.
Basic steps:
- Unplug the microwave and leave it disconnected. H98 indicates a serious fault in the high-voltage system.
- Do not attempt to run the microwave repeatedly with this error; it can cause further damage.
Professional repair:
- A technician will test the magnetron, inverter board, and associated wiring for shorts or opens.
- Typically, either the magnetron or inverter is replaced as a complete assembly.
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Repair Difficulty
Professional Required
5/5
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