Error code · Refrigerator

LG Refrigerator Code gF: Water Flow Sensor

gF appears on LG refrigerators with an LED or LCD temperature display and a water line for the dispenser or ice maker. It reports a flow sensor error or low water pressure, and an ice maker…

Medium · inspection needed

(713) 597-5662

Code: gF
Appliance: Refrigerator
Brand: LG
Warranty: 30-day workmanship

What gF means

gF appears on LG refrigerators with an LED or LCD temperature display and a water line for the dispenser or ice maker. It reports a flow sensor error or low water pressure, and an ice maker that overfills may point to a flow sensor that reads incorrectly. The owner sees gF, and the dispenser may deliver slowly or not at all, while ice production may fall off or run too long.

Common causes of gF

Household water supply pressure
Kinked or pinched water line
Flow sensor in the water inlet path

✓ One safe check you can try

1. Unplug the refrigerator for 60 seconds, then plug it back in. 2. Make sure the water tap feeding the refrigerator is fully open. 3. Check that the hose behind the refrigerator is not kinked. 4. Confirm the home's water pressure is normal at another tap. 5. If the code returns, request service.

! Why to stop there

Low pressure and a failing flow sensor look alike from the display.
We test the supply and the sensor, then give a written price before work.
We also check for overfilling at the ice maker.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Refrigerator codes

iTLG Refrigerator Code iT: Ice Maker Motor OdLG Refrigerator Code Od: Wi-Fi Module Link OFFMessage "OFF" on LG Refrigerators r2LG Refrigerator Code r2: Lower Compartment Sensor rFLG Refrigerator Code rF: Fresh-Food Fan Motor rSLG Refrigerator Code rS: Upper Sensor Open or Shorted rTLG Refrigerator Code rT: Room Temperature Sensor SbLG Refrigerator Code Sb: Sabbath Mode On

gFgF questions

Can low water pressure alone cause gF?

Yes. The code is tied to low pressure or a flow sensor problem, so checking the tap and the hose first rules out the easy causes before anyone looks at parts.

Why is my ice maker overfilling?

That can point to a flow sensor that is not reading correctly. We test the sensor and the fill valve and tell you what we find, with a written price before any repair.

Is it safe to leave gF alone?

For cooling, usually yes. If you see any leaking around the refrigerator, turn off the water supply to it and call us so we can check the line and connections.

Book a visit

Still seeing gF?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 597-5662