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FU — Cycle Error (Freezer Compartment Fault)
warning
The freezer compartment temperature failed to drop below 3.5°C within 10 minutes of startup, or rose above 3.5°C during operation.
Common causes
- Compressor not running correctly
- Freezer temperature not set correctly
- Door opened too frequently or left open too long
- Air vents blocked by food items
- Door gasket not sealing properly
How to fix it
- Unplug the refrigerator, wait 60 seconds, then reconnect to a direct outlet
- Verify compressor is running and temperatures are normal
- Set freezer temperature to -18°C
- Reduce frequency and duration of door openings
- Remove any food blocking air vents
- Check door closes properly and gaskets seal using the paper test
- Inspect door insulation if bins show extreme temperature impact
Parts you might need
- Door gasket
- Compressor
Compiled from Lg's public support resources — original page. Recalled.co is not affiliated with Lg. Report incorrect information at hello@recalled.co.