F26
LG
Oven relay drive error
LG range shows F26 and oven may not heat or may shut off.
Advertisements
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.
Advertisements
Possible Causes
Failed relay on main control board, Shorted heating element causing overcurrent, Damaged wiring to element, Control board logic fault
How to Fix / Troubleshooting
Safety first: Disconnect power at the breaker. High voltage is present at the relays.
- Inspect elements: Check bake and broil elements for visible damage or shorts to chassis. Replace any damaged elements.
- Check wiring: Inspect wires from control board to elements for burns or melted insulation. Repair or replace damaged wiring.
- Control board inspection: Remove the control board and inspect the relay area for burnt spots or cracked solder joints. Any damage indicates the board must be replaced.
- Replace control: Install a new LG main control board if the relay is defective or F26 persists after verifying elements and wiring.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
Main Control Board (Relay Board)
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements