LG · Refrigerator
LG Refrigerator CF Error Code
Condenser fan at compressor not running
What this error means
CF is a Condenser Fan error—the motor that cools the compressor at the bottom rear stopped reporting speed. LG may clear CF briefly after power reset but the code often returns within three hours until the fan is repaired.
How CF is detected
When CF appears on a LG refrigerator, the control board has confirmed that water did not leave the machine within the programmed drain window. On LG LMXS28626S, LG LFXS28968S, and similar variants, the drain pump runs for a fixed interval—often three to seven minutes on washers and dishwashers—while a pressure switch or turbidity sensor verifies the tub or sump is empty. If water remains, the cycle stops to prevent spin with a full tub or overflow on the next fill.
Most CF calls are resolved without parts: pull fridge forward safely and unplug. Restricted drain paths mimic pump failure because the impeller spins against a blocked hose or filter. Document whether the pump hums audibly during the drain step; a humming pump with no water movement points to a clogged filter or kinked hose, while silence may indicate a failed pump motor or loose wiring at the harness.
After clearing blockages, run a short cycle and listen at the drain hose for steady water flow. If CF returns on the next load with a clean filter and straight hose, measure resistance at the pump motor connector per the service manual for your model before ordering a replacement pump assembly.
Common causes
- Fan motor bearing seized from dust and pet hair
- Wire harness unplugged during moving the fridge
- Object blocking the fan blade under the machine
- Main board fan driver failure
Step-by-step fixes
- 1Pull fridge forward safely and unplug
- 2Vacuum condenser coils and the fan grille at the bottom rear
- 3Spin the fan blade by hand—it should rotate without grinding
- 4Restore power and listen for condenser fan within two minutes of startup
When to call a technician
CF that returns on schedule after coil cleaning needs condenser fan motor or board service.
Affected models
- LG LMXS28626S
- LG LFXS28968S
- LG LRFXC2416S
Prevention & maintenance
- Clean drain filters and hose terminations monthly on high-use refrigerators to prevent CF from lint and food debris buildup.
- Record when CF appears in the cycle and whether it clears after a 60-second power reset on your LG refrigerator—that detail speeds diagnosis if you call service.
- Keep the model and serial number from the rating plate when ordering parts for CF; LG uses multiple revisions with different harness lengths and board firmware.
- Photograph wiring connector orientation before disconnecting any component while troubleshooting CF; reversed plugs on pumps and valves cause immediate repeat faults.