LG · Refrigerator (Side-by-Side)

LG Refrigerator (Side-by-Side) FS error code

Difficulty: Hard · Cost: $80–$200 · Duration: Requires professional service

The FS error means your LG refrigerator has detected a fault with the freezer sensor — the component that monitors the temperature inside the freezer compartment. A short circuit or disconnection in the sensor means the refrigerator cannot accurately read the freezer temperature and stops operating normally to prevent food spoilage or damage to the cooling system. This error requires a professional technician to inspect and replace the faulty sensor.

Common causes

Freezer temperature sensor has developed a short circuit
Sensor wiring has become disconnected or damaged
Freezer sensor has malfunctioned or failed completely

How to fix it

1

Unplug the refrigerator from the outlet and wait 5 minutes
2

Plug it back in and check if the error has cleared
3

If FS returns after resetting the freezer sensor or its wiring needs inspection and replacement by a technician