F96
LG
Power Relay or Triac Failure
LG oven shows F96 and may not heat or may shut off unexpectedly.
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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 power relay on main control board, Shorted triac controlling elements, Power surge damage to PCB
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker. High voltage is present on the control board.
- Visual inspection: Remove the rear panel and inspect the control board for burnt relays, cracked components, or discoloration.
- Check element circuits: Ensure elements are not shorted to ground, which can damage relays. Test each element with a multimeter.
- Replace control board: If relays or triacs are visibly damaged or F96 persists after verifying elements, replace the main control board with an LG-approved part.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Oven Control Board (ERC/PCB)
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