Which part is usually at fault for LG error F3?

The most commonly implicated component is the touch pad.

What is the first thing to try for LG error F3?

Cycle the circuit breaker (off thirty seconds, then on); request service if the key error returns.

Error F3 Degraded US market

F3 on a LG oven / range usually means: A touch pad sensor key error was detected. On a LG Oven / Range, code F3 points to the touch pad.

Fix it fast: Reset at the breaker. Full ranked steps below.

Manufacturer source Updated Oct 17, 2026 View source

Try these in order. Stop when the code clears.

1 Reset at the breaker
Easy
- Cycle the circuit breaker (off thirty seconds, then on); request service if the key error returns.
Source

Sabbath mode is active. On a LG Oven / Range, code 5B points to the control system.

The upper oven thermistor is reporting a fault. On a LG Oven / Range, code F1 points to the oven thermistor.

The upper oven door locking system failed. On a LG Oven / Range, code F10 points to the door lock.

An oven sensor fault was detected. On a LG Oven / Range, code F16 points to the oven sensor.

The upper oven thermistor is reporting a fault. On a LG Oven / Range, code F2 points to the oven thermistor.

The front induction burner temperature sensor is faulty. On a LG Oven / Range, code F33 points to the induction sensor.

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