LG Refrigerator er-gf error code
The water flow sensor (flow meter) is not reading correctly. It measures water flowing to the dispenser and ice maker.
Also shown as: er-gf, ER-GF, Er gF, er gf
Last updated: October 6, 2026
What causes the er-gf error?
- Failed flow sensor
- Low household water pressure
- Clogged water filter
- Kinked water supply line
- Wiring fault to the sensor
How to fix LG er-gf — step by step
Work through these in order, from simplest and safest first. Stop as soon as the code clears.
- Power reset the fridge
Unplug the fridge for 10 minutes, then plug it back in to clear a temporary sensor error. - Check the water supply
Make sure the water valve behind the fridge is fully open and the supply line is not kinked or crushed. - Replace the water filter
A clogged filter chokes water flow and can confuse the flow sensor. Replace it if it is old, then run the dispenser for a minute to purge air.
When to call a technician
- No water or ice after checking supply and filter
- The code returns with good water pressure
- You see leaking around the sensor area
- The dispenser behaves erratically
Frequently asked questions
Will Er gF stop my ice maker?
It can. The fridge may halt dispensing and ice making when it cannot measure water flow.
I just changed the filter and now see Er gF. Why?
Air trapped in the line after a filter change can confuse the sensor. Run the dispenser for a minute or two to purge it.
Is low water pressure enough to cause this?
Yes. Weak flow looks like a sensor problem to the fridge, so check pressure before replacing parts.
Sources
Every meaning and fix above was checked against official manufacturer documentation:
FixCode provides general troubleshooting information only — not professional repair advice. If you are unsure about any step, stop and call a qualified technician. Repairs done incorrectly can be dangerous and may void your warranty.