LG Refrigerator FF Error Code: What It Means and How to Fix It

By Dan Mercer · Published October 5, 2026 · Updated October 6, 2026 · Codes covered: FF, Er FF, E FF, F · Sources

Verify in your manual: Display format (Er FF, E FF or F) varies by model; check your owner's manual

An FF code on an LG refrigerator means the freezer fan motor isn't turning properly. Almost always, ice or frost has built up around the fan and locked it in place. LG's own fix is a full defrost, which you can do yourself with no tools. It takes a day or more, though, so plan for your food first.

Depending on your model, the display may show Er FF, E FF, or just F. They all point to the same freezer fan problem.

This 3-minute fix saved 0 homeowners a technician visit this month.

What the FF code means

LG calls this a Freezer Fan Motor Error. LG says it appears "when ice or frost buildup prevents the freezer fan motor from turning." The fan pushes cold air around the freezer, and in most models it also feeds cold air to the fridge section. When it stops, both compartments can start to warm up.

LG says this often happens when the freezer is too full or the door isn't fully closed, which lets warm, humid outside air in. That moisture freezes onto the fan area.

LG notes that codes look slightly different by model. Some displays show it as lit temperature LEDs instead of letters, so check your manual.

Look-alike codes that mean something else:

• Er rF / E rF is the fan in the refrigerator compartment, not the freezer.
• Er CF / E CF (or just C) is the condenser fan at the back of the fridge, near the compressor.
• Er dH is a defrost system fault.

Likely causes (most common first)

1. Freezer door not fully closed. Even a small gap lets in moist air that turns to frost on the fan.
2. Freezer packed too full. Food can block the door or the air vents.
3. Torn, twisted, or dirty door gasket. A poor seal has the same effect as a door left ajar.
4. Fridge not level or doors out of alignment. LG links frost buildup to leveling and door alignment.
5. Freezer set very cold. LG says that below 0°F, frost may not fully melt during the automatic defrost.
6. Failed fan motor, wiring, or defrost problem. If the code comes back after a full defrost, a part has likely failed.

How to fix it, step by step

Work through these in order.

1. Protect your food first. Move it to another refrigerator or an insulated cooler with ice. FoodSafety.gov says a full freezer holds a safe temperature for about 48 hours (24 hours if half full) with the door closed. A refrigerator keeps food safe for up to 4 hours without power.
2. Empty the ice bin. LG's manual-defrost steps say to remove all food and ice.
3. Put dry towels down. Lay them on the floor around the fridge and on the shelves to catch meltwater.
4. Unplug the refrigerator. Pull the plug from the outlet. Don't just change the temperature setting.
5. Leave both doors fully open. LG's FF article says at least 24 hours. LG adds that it can take about a day in summer and up to three days in winter, depending on how much ice there is.
6. Don't speed it up with heat. LG specifically says not to use a hair dryer, because heat can warp plastic parts or create a fire hazard. Never chip at ice with a knife or other sharp tool.
7. Dry the inside. Once all the ice has melted, wipe away any water with dry towels.
8. Plug it back in and close the doors. LG says to allow 24 to 48 hours for both compartments to get back to normal temperature. Wait until they're cold before you reload food.
9. Fix the cause so it doesn't come back.
   • Don't overfill the freezer, and keep food away from the air vents.
   • Clean the gasket with warm water and mild detergent. LG says to pull out any compressed part of the gasket.
   • On drawer freezers, LG suggests pulling the drawer slightly off its rails, then opening and closing it fully three times to reset the rails.
   • Check the fridge is level. LG has leveling instructions for your model on its support site.
10. Watch for a few days. If FF comes back after a full defrost, a part has likely failed. See "Test the part" or call for service.

Test the part

LG treats a returning FF code as a service call, so this is optional: only if you're out of warranty and comfortable removing an interior panel.

1. Unplug the refrigerator. Pull the plug, and keep food in a cooler while you work.
2. Empty the freezer and take out the shelves or drawers so you can see the back wall.
3. Find the fan cover. The freezer fan sits behind a panel at the back of the freezer. How that panel comes off varies by model, so check your manual or your model's tech sheet. Watch for sharp edges.
4. Look for ice. If the fan or the coil behind the panel is still packed with ice, it isn't fully defrosted yet. Close the panel and give it more time.
5. Spin the fan blade gently by hand. It should turn freely. If it scrapes, wobbles, or is cracked, or if the motor shaft is stiff, the fan is the likely problem.
6. Check the wiring you can see. Look for a loose connector, or for melted or burnt wires. If you see burn marks, stop and call a pro.
7. Don't test it electrically. We couldn't find a public LG resistance value for this fan motor, so there's no reading to compare against. Leave electrical tests to a technician.

If the fan spins freely, there's no ice, and FF still returns, stop there. The remaining suspects (control board and defrost system) are a technician's job.

Safety notes

When to call a pro

Request LG service (through LG's chatbot or a technician visit on LG's support site) or call a qualified appliance technician if:

• FF comes back after a full 24-hour-plus defrost with the doors and gasket checked. That's LG's own point to request service.
• You'd need to remove panels and test parts and you don't have a multimeter or aren't comfortable with interior wiring.
• The freezer keeps icing up quickly, or you see a sheet of ice on the freezer floor. LG says that points to a blocked drain line, which needs disassembly by a trained technician.
• You find a damaged fan, a stiff motor, or burnt wiring.
• The fridge is under warranty. LG notes service fees may apply when the product is out of warranty, so check your coverage first.

FAQ

Related

• FF in the LG refrigerator error codes table
• Er rF – fridge fan (look-alike code)
• Er CF – condenser fan (look-alike code)
• Er dH – defrost (look-alike code)
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• Haier Refrigerator Ed Error Code
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