E10
Tristar
EEPROM / Control Memory Error
Microwave shows E10 and beeps; clock and basic display work but cooking functions are disabled.
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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
Corrupted EEPROM on control PCB, Voltage spike damage, Defective control PCB, Poor grounding of the appliance
How to Fix / Troubleshooting
Safety: Unplug the microwave before accessing internal components.
Steps to address E10:
- 1. Hard reset: Unplug the microwave for at least 10 minutes. Plug back in and reprogram the clock. Attempt a short cook cycle. If E10 reappears, the memory is likely corrupted.
- 2. Check power quality: Avoid using the microwave on circuits shared with heavy loads (air conditioners, compressors). Use a properly grounded outlet. Consider using a surge protector rated for microwaves.
- 3. Inspect control board connections: Remove the control panel and verify all connectors to the control PCB are secure. Reseat them to ensure good contact.
- 4. Replace control PCB: If E10 persists, the EEPROM or microcontroller on the control board is defective. Replace the control PCB with the correct Tristar part number. This repair is moderate difficulty and may be best handled by a technician.
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Repair Difficulty
Hard
4/5
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