What the LG fridge codes mean
LG fridges show the code with "Er" in front on some models, for example Er FF. The list below is from LG's own support page. A technician can tell you what an unlisted code means.
FF, rF: Freezer or fridge fan
What it means: The fan in the freezer (FF) or in the fridge section (rF) is not running.
What you can check: There is no home check. A technician needs to test the fan and look for ice around it.
Read our guide: Fridge Not Cooling but Freezer Works: Causes and Fixes
CF: Condenser fan
What it means: The fan at the back that cools the compressor area is not running.
What you can check: Make sure nothing blocks the back of the fridge. A technician needs to test the fan.
dH, FdH, dHF: Defrost fault
What it means: The defrost heater is not warming up, so the cooling plate may be iced over.
What you can check: There is no home check. The defrost heater, fuse or drain needs a technician.
FS, rS, r2, dS, rT: Temperature sensor
What it means: One of the temperature sensors has failed: freezer (FS), fridge (rS, r2), defrost (dS) or room (rT).
What you can check: There is no home check. A technician tests the sensor and its wiring.
FU: Freezer not cold enough
What it means: The freezer is not reaching its temperature.
What you can check: Unplug for 60 seconds and plug straight into a wall socket. Set the freezer to minus 18 degrees, open the doors less often, keep food away from the air vents and check the door seals with a sheet of paper.
CH, CL: Refrigerant leak
What it means: The fridge has detected a refrigerant leak.
What you can check: There is no home check. This needs a technician.
IF, IS, It: Ice maker
What it means: A fault in the ice maker fan (IF), sensor (IS) or motor (It).
What you can check: There is no home check. A technician needs to test the ice maker.
gF: Water flow
What it means: The water flow sensor reports a problem.
What you can check: Check that the water tap is fully open and the hose is not kinked. Unplug for 60 seconds and wait up to five minutes after switching on.
tt: Water tank
What it means: The water tank is missing or not seated properly.
What you can check: Check that the water tank is fitted correctly.
CO, C1: Communication
What it means: The display and the main board are not communicating.
What you can check: There is no home check. A technician needs to test the wiring and boards.
Lo, HI: Room temperature warning
What it means: The room around the fridge is very cold or very hot. This is not a fault.
What you can check: Move the fridge away from heat or out of an unheated room if you can. Cooling may be weaker until the room temperature is normal.
When to stop and call a technician
The display shows CH or CL, the fridge is getting warm, the same code comes back, you hear clicking every few minutes or there is a burning smell. Unplug the fridge before you defrost it, and do not chip ice off with a sharp tool.
Still having trouble with your lg error codes?
Our technician comes to your home, usually the same day. The R450 call-out falls away if you go ahead, and you get a fixed price in writing before any work starts.
How a technician deals with the code
- Read the codeThe technician confirms the code and checks which faults the appliance has stored.
- Test the partThe part behind the code is tested, for example the fans, defrost heater, sensors, ice maker or the sealed system.
- Fixed priceYou get a fixed price in writing before any part is replaced.
Code meanings on this page come from LG support: refrigerator error codes. See also our LG fridge repairs page.