LG Washer Error Code HE1

HE1 on an LG washer indicates a heater error caused by the water level sensor detecting no water while the bottom temperature sensor detects overheating. The washer interprets this as the heating element running dry and shuts off input power to prevent damage. On USA models, it can also be triggered by a PBA relay malfunction even if the heater itself is functioning correctly.

No, you should not continue running the washer while HE1 is active. The code indicates the machine detected a potentially dangerous overheating condition and has cut power to protect itself. Running it again without addressing the root cause risks damaging the heating element, the control board, or in a worst case, creating a fire or burn hazard.

Repair costs vary depending on the failed component. Replacing a temperature sensor or water level sensor typically falls in the range of $50 to $150 including parts and labor. A PBA relay repair or full control board replacement can range from $150 to $350 or more depending on parts availability and labor rates in your area.

Start by checking whether the machine or its water lines have been exposed to freezing temperatures, since frozen water is the most common trigger. If ice is present, allow the machine to thaw completely before restarting. If the error persists in normal temperature conditions, the water level sensor, bottom temperature sensor, heating element, and the main PBA relay should each be tested for proper operation.

A reset may temporarily clear the HE1 display, but the error will return if the underlying condition is not resolved. If the cause is frozen water, clearing the ice and allowing the machine to return to room temperature may allow it to run normally. If the cause is a failed sensor, relay, or heating element, a reset alone will not fix the problem.