Which part is usually at fault for LG error GF?

The most commonly implicated component is the flow sensor.

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

If the ice maker overfills the flow sensor may have failed; if household water pressure is low, raise it. Otherwise request service.

Error GF Degraded US market

GF on a LG refrigerator usually means: The water flow sensor is faulty or the supply pressure is low.

Fix it fast: Check flow and pressure. Full ranked steps below.

Manufacturer source Updated Oct 17, 2026 View source

Try these in order. Stop when the code clears.

1 Check flow and pressure
Moderate
- If the ice maker overfills the flow sensor may have failed; if household water pressure is low, raise it.
- Otherwise request service.
Source

A fault was detected in the compressor relay. On a LG Refrigerator, code 22 points to the compressor relay.

A door is ajar or an object is preventing it from closing. On a LG Refrigerator, code 67 points to the door seal.

The condenser discharge-fan feedback signal fell below its threshold.

A high-side refrigerant leak or restriction was detected. On a LG Refrigerator, code CHE points to the condenser and refrigerant line.

A low-side refrigerant leak was detected. On a LG Refrigerator, code CLE points to the evaporator and refrigerant line.

A communication fault occurred between the main board and the display.

Have a different code? Look it up instantly.