Which part is usually at fault for LG error F51?

The most commonly implicated component is the griddle sensor.

What is the first thing to try for LG error F51?

Cycle the circuit breaker; request service if the griddle sensor error returns.

Error F51 Degraded US market

F51 on a LG oven / range usually means: The griddle sensor is reporting a fault. On a LG Oven / Range, code F51 points to the griddle sensor.

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; request service if the griddle sensor error returns.
Source

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

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.

The lower oven thermistor is reporting a fault. On a LG Oven / Range, code F4 points to the oven thermistor.

The oven meat probe is reporting a fault. On a LG Oven / Range, code F8 points to the meat probe.

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