LG Washer Error Code HC

HC stands for heater check error on an LG washer. It indicates the control board has detected a problem in the washing heater circuit, which could include a short circuit, a wire disconnection, a faulty heater contact, or a sensor malfunction. The machine also triggers this code as a safety measure if the temperature sensor reads between 100 and 150 degrees Celsius while the water level sensor detects no water in the drum, causing the unit to power off the heater automatically.

No, you should not attempt to run the washer while the HC error is active. The code indicates a fault in the heating circuit, and the machine may have already shut down the heater as a protective measure due to a potential dry-heating condition. Continuing to operate the unit without resolving the fault could cause damage to internal components or pose a safety risk.

Repair costs depend on which component has failed. If only a wire connection needs to be reseated, the cost may be minimal or limited to a service call fee, typically in the range of 75 to 150 dollars. Replacing a heater element or temperature sensor generally costs between 100 and 300 dollars including parts and labor, while a water level sensor replacement tends to fall in a similar range depending on the technician and region.

Some causes of the HC error are accessible to a knowledgeable DIYer. Start by unplugging the washer and inspecting the wiring connections at the heater element for looseness, corrosion, or disconnection, since a simple reconnection may resolve the code. Testing the heater element and sensors with a multimeter requires basic electrical knowledge. If the heater element or a sensor has failed, replacing those parts is a moderate-difficulty repair.

A reset may temporarily clear the HC code from the display, but it will not resolve the underlying problem. If the wiring fault, heater failure, or sensor issue is still present, the code will return once the machine attempts to use the heater again. The root cause must be diagnosed and corrected before the error will stay clear.