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LG Refrigerator Error Codes

Find the code shown on your LG refrigerator and get a plain-English explanation with step-by-step fixes, easiest first. We cover 17 LG refrigerator codes, including OFF, Er FF, Er rF, Er dH.

All 17 LG refrigerator codes

• OFFFridge is in demo (display) mode
• Er FFFreezer fan is blocked or not running
• Er rFRefrigerator fan is not running properly
• Er dHDefrost cycle failed
• Er IFIce maker fan problem
• Er ISIce maker sensor fault
• Er ItIce maker motor or assembly fault
• Er gFWater flow sensor error
• Er COMain board and display are not communicating
• Er CFCondenser fan error
• Er FSTemperature sensor fault
• Er CHSealed system (refrigerant) fault
• Er 22Compressor relay problem
• FUCooling cycle error
• Er 67Door not closing fully
• ttWater tank not detected
• SbSabbath mode is on

About LG refrigerator error codes

LG Electronics is a South Korean manufacturer and one of the best-selling appliance brands in the US. LG appliances show short letter-and-number codes on the main control panel, and many recent models can also report them to the LG ThinQ app.

Of the 17 codes on this page, 4 usually have a simple fix you can do yourself, and 7 usually need a technician. Each guide tells you which is which, so you don't pay for a service call you don't need, and you don't attempt a repair that isn't safe.

Before you start

• Write down your model number. It's on a sticker, usually inside the door or lid, on the frame, or on the back or side panel. Parts and some code meanings depend on it.
• Try a reset. Unplug the refrigerator or switch off its breaker for 10 minutes. This clears many one-off glitches without tools.
• Check that the doors close fully and the vents inside aren't blocked by food. Give the fridge a few hours after any reset before judging the temperature.