Freezer
F7
The F7 error code on an LG freezer indicates a fault with the freezer compartment fan motor — specifically that the control board is detecting the fan is not spinning correctly or at all. Left unresolved, your freezer will lose the ability to circulate cold air, and your food will begin to thaw.
What does this error mean?
Your LG freezer uses an evaporator fan motor to circulate cold air from the evaporator coils throughout the freezer compartment. The F7 code means the main control board has detected that this fan motor is running outside its expected parameters — either too slowly, erratically, or not at all. Without proper air circulation, the compressor may continue to run but temperatures will rise, making this fault time-sensitive.
Est. repair cost
DIY fan motor replacement: £25–£60 for the part. Professional repair (call-out + labour + parts): £100–£200.
🔍 Likely causes
🛠️ Step-by-step fix
Step 1 — Power off and defrost: Unplug the freezer from the mains. Remove all food to a cool box with ice packs. Leave the freezer door open for 24–48 hours to allow any ice build-up around the evaporator fan to fully melt. This alone resolves the fault if ice blockage is the cause.
Step 2 — Listen for the fan on restart: Once fully defrosted, plug the freezer back in. Open the freezer door, press and hold the door switch to trick the unit into thinking the door is closed, and listen or feel for airflow from the back panel vent. No airflow or a grinding/humming noise points directly to a faulty fan motor.
Step 3 — Inspect the door gasket: Check the rubber door seal all the way around for tears, gaps, or areas that don’t make firm contact with the cabinet. A poor seal lets in warm air, causing rapid frost build-up. Replace the gasket yourself if damaged — LG replacement gaskets cost £20–£45 online, and they clip or screw in without tools on most models.
Step 4 — Access and inspect the evaporator fan: Unplug the unit again. Remove the interior back panel of the freezer compartment (usually 4–6 screws). Check the fan blade for visible cracks or ice debris, and try spinning it by hand — it should turn freely with no grinding. If it’s stiff or won’t spin, the motor needs replacing.
Step 5 — Replace the evaporator fan motor: Source a genuine or compatible LG evaporator fan motor (search your full model number, found inside the door frame). Disconnect the wiring harness connector, unscrew the old motor, fit the new one, reconnect the harness, refit the back panel, and power on. The F7 code should clear within a few minutes of the fan running correctly.
Step 6 — Reset the error code: If the fan is running correctly after repair but the F7 code persists, perform a hard reset by unplugging the freezer for 5 minutes, then powering back on. If F7 returns immediately despite a working fan, the control board is likely faulty and will need professional diagnosis.
📞 When to call a professional
Call an appliance engineer if you’ve replaced the evaporator fan motor and the F7 code still appears, as the main control board (PCB) is likely at fault — PCB replacement and diagnosis should be handled by a qualified technician. Also call a professional if you’re uncomfortable removing the interior back panel or working near the refrigerant lines. When you call, tell the engineer: ‘My LG freezer is showing an F7 error code — I believe it’s the evaporator fan motor or the main control board.’
⚖️ Repair or replace?
A professional repair for an F7 fault — covering call-out, labour, and parts — typically costs £100–£200 in the UK. If your LG freezer is under 8 years old and was a mid-to-premium model (originally £400+), repair is almost always the better financial choice. If the unit is over 10 years old or was budget-priced, a replacement freezer from £250–£350 may be more cost-effective long-term.