H95
Panasonic
High-Voltage System Protection Error
Microwave will not heat and shows H95 on the display, sometimes after a brief humming sound.
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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
Defective inverter board, Shorted or open magnetron, Faulty high-voltage transformer (on non-inverter models)
How to Fix / Troubleshooting
Safety Warning: The high-voltage section of a microwave is extremely dangerous. Do not remove the cover or attempt internal repairs unless you are properly trained.
What you can do:
- Reset the unit: Unplug for 5–10 minutes, then plug back in and test with a cup of water.
- Check ventilation: Ensure the microwave is not built into a tight space without proper airflow. Overheating can trigger protection codes.
- Listen for abnormal sounds: If you hear loud buzzing or arcing before H95 appears, stop using the microwave immediately.
When to seek service:
- If H95 returns after a reset, the inverter, magnetron, or transformer is likely faulty.
- Contact a professional technician; these components require specialized tools and safety procedures to replace.
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Repair Difficulty
Professional Required
5/5
Required Part
High-Voltage Transformer or Inverter Board
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