LG Oven/Range Error Code F6 — Broil Element Circuit Open / Relay Failure
What this means
The F6 error code on LG ovens indicates the control board has detected an issue with the broil element circuit. This can mean the broil element has burned out (open circuit), the relay that controls power to the broil element has failed, or the wiring between the relay board and the broil element is broken. The oven may still bake but will not broil, or it may display F6 and refuse to operate entirely.
Step-by-step fix
4 stepsPower cycle the oven
Turn off the breaker for two minutes. Restore power and try running both bake and broil modes. If only broil triggers F6, the issue is isolated to the broil circuit.
If both bake and broil trigger errors, the control board relay section is likely the problem rather than an individual element.
Visually inspect the broil element
Open the oven door and look at the broil element mounted at the top of the cavity. Look for visible breaks, blistering, holes, or spots where the element has sagged and is touching the oven wall.
A broken broil element sometimes shows a spot that's darker or swollen compared to the rest of the coil.
Test the broil element with a multimeter
Turn off the breaker. Remove the rear panel to access the broil element wiring. Disconnect the element wires and measure resistance. A good broil element typically reads 15–50 ohms. An OL (open line) reading means it has burned out.
Also test from each element terminal to the metal oven chassis — any reading indicates a grounded element that must be replaced.
Replace the broil element or check the relay
If the element is open or grounded, remove the two to four mounting screws holding it to the rear oven wall. Pull the old element forward, disconnect the wires, and install the new element. If the element tests good, the relay on the control board may have failed — visually inspect the relay and consider board replacement.
When installing the new element, ensure it's seated flat and the wires are not pinched behind the mounting bracket.
When to call a professional
If the broil element tests good but the error persists, the issue is likely a failed relay on the main control board. A technician can test the relay outputs and replace the board if needed.
Related error codes
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
Learn more about our sourcesParts you may need
Main Relay Control Board
Part #EBR74164805 · $150–$300
If the broil element is good but the relay has failed
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