Microwave displays H98 and does not heat; fan and light may still run.
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
Critical Safety Warning: High-voltage microwave components (inverter, magnetron, capacitor) can store and generate lethal voltages. Do not attempt to service these parts unless you are a trained appliance technician with proper tools and procedures.
User-level actions:
- Power reset: Unplug the microwave for 10 minutes, then plug back in and test. If H98 returns, internal high-voltage components are likely faulty.
- Ventilation: Ensure vents are not blocked and that the unit is not overheating.
Service-level actions (for technicians):
- Test the Frigidaire magnetron, inverter board, and thermal cutouts for continuity and shorts.
- Replace the defective component(s) and verify proper operation.
Recommendation: Due to the danger involved, contact a qualified technician for H98 errors.
Repair Difficulty
Required Part
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