LG · Washing Machine
LG Washing Machine UE Error Code
Load unbalanced before high-speed spin
What this error means
UE is an Unbalanced Error. Before reaching full spin speed, LG washers measure drum movement; if weight is piled on one side, the machine pauses and displays UE rather than shake violently. Single heavy items like bath mats are a frequent trigger.
How UE is detected
When UE appears on a LG washing machine, the control board has confirmed that water did not leave the machine within the programmed drain window. On LG WM8100HVA, LG WM4000HWA, 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 UE calls are resolved without parts: pause the cycle, open the door, and spread clothes around the entire drum perimeter. 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 UE 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
- One heavy garment clumped against the drum wall
- Washer not level—front legs uneven or nut not locked
- Worn shock absorbers allowing excessive tub movement
- Small load with insufficient items to balance the drum
Step-by-step fixes
- 1Pause the cycle, open the door, and spread clothes around the entire drum perimeter
- 2Add one or two towels when washing a single heavy item alone
- 3Place a level on the washer top and adjust front legs until the bubble centers, then tighten lock nuts
- 4Retry on Spin Only at 800 RPM before attempting a full wash cycle
When to call a technician
If UE appears on balanced full loads after leveling, worn suspension rods or shock absorbers inside the tub assembly likely need replacement.
Affected models
- LG WM8100HVA
- LG WM4000HWA
- LG WT7300CW
Prevention & maintenance
- Clean drain filters and hose terminations monthly on high-use washing machines to prevent UE from lint and food debris buildup.
- Record when UE appears in the cycle and whether it clears after a 60-second power reset on your LG washing machine—that detail speeds diagnosis if you call service.
- Keep the model and serial number from the rating plate when ordering parts for UE; LG uses multiple revisions with different harness lengths and board firmware.
- Photograph wiring connector orientation before disconnecting any component while troubleshooting UE; reversed plugs on pumps and valves cause immediate repeat faults.