LG Washer Error Code 7

Error code 7 on an LG washer indicates a heating error. Specifically, it means the washer either failed to fully drain within a 10-minute period or the thermistor on the tub has malfunctioned or come loose. The control board stops the cycle when it detects either of these conditions to prevent further damage.

No, you should not continue running the washer while error code 7 is active. The machine has halted the cycle because it detected a drain or thermistor problem, and continuing to operate it without resolving the fault could lead to water remaining in the drum, potential overheating, or further component damage. Diagnose and repair the underlying cause before resuming normal use.

A reset may temporarily clear the error code from the display, but it will not resolve the underlying problem. If the drain system is restricted or the thermistor is faulty, the code will return as soon as the washer attempts another cycle and encounters the same condition. The root cause must be identified and corrected for the error to stay clear permanently.

Start by checking the drain system: clean the pump filter, inspect the drain hose for kinks or blockages, and confirm the hose is installed at the correct height. Next, locate the thermistor on the tub, confirm it is properly seated, and test it for correct operation. If the thermistor is faulty, it will need to be replaced. Addressing whichever of these two root causes applies to your situation should clear the error.

Repair costs depend on which component has failed. If the issue is simply a clogged filter or kinked hose, there may be no parts cost at all. A replacement thermistor typically falls in the range of $15 to $50 for the part itself. A failed drain pump is more expensive, with parts generally ranging from $40 to $120, plus labor if a technician performs the repair.