LG · Refrigerator
LG Refrigerator CL Error Code
Child lock on—display not a fault
What this error means
CL is Control Lock—not a cooling fault. It disables dispenser and temperature buttons to prevent accidental changes, especially on door-through models.
How CL is detected
When CL appears on a LG refrigerator, the control board has confirmed that water did not leave the machine within the programmed drain window. On LG LFXS26973S, 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 CL calls are resolved without parts: press and hold the lock button three seconds until cl disappears. 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 CL 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
- Lock button held during cleaning
- SmartThinQ lock enabled from app
- Power outage restoring lock default on some firmware
- Guest mode lock on display models
Step-by-step fixes
- 1Press and hold the Lock button three seconds until CL disappears
- 2Check the ThinQ app for active lock settings
- 3Refer to the door UI icon map for models using a combo lock
- 4Dispense water once lock clears to confirm buttons respond
When to call a technician
Only if buttons stay dead after CL clears—then suspect UI board, not lock.
Affected models
- LG LFXS26973S
- LG LFXS28968S
- LG LRFXC2416S
Prevention & maintenance
- Clean drain filters and hose terminations monthly on high-use refrigerators to prevent CL from lint and food debris buildup.
- Record when CL 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 CL; LG uses multiple revisions with different harness lengths and board firmware.
- Photograph wiring connector orientation before disconnecting any component while troubleshooting CL; reversed plugs on pumps and valves cause immediate repeat faults.