LG HVAC Error Code CE

CE stands for Compressor Phase Current Error on an LG HVAC system. It means the system has detected abnormal current in one or more phases of the compressor motor circuit. The unit shuts down automatically to protect the compressor from damage. Diagnosis should follow the procedure outlined under error code 14.

No. The CE error indicates a potentially serious electrical fault in the compressor circuit, and the system has shut down as a protective measure. Attempting to bypass or ignore this fault could result in permanent compressor damage or an electrical hazard. The unit should remain off until the fault is properly diagnosed and repaired.

A power reset may temporarily clear the CE fault display, but the error will return if the underlying cause has not been corrected. Because this error is tied to a measured electrical condition in the compressor circuit, the fault logic will re-trigger as soon as the system attempts to run the compressor again under the same conditions. A proper diagnosis should be completed before relying on any reset.

Some basic checks, such as inspecting wiring connections and verifying the power supply voltage, can be performed by a knowledgeable DIYer. However, diagnosing phase current faults typically requires measuring live electrical values at the compressor and inverter board, which involves high-voltage AC and DC circuits. Most of the repair work involved, including compressor or PCB replacement, should be handled by a certified HVAC technician.

Repair costs vary depending on the root cause. A wiring repair or refrigerant charge correction might cost in the range of $150 to $400 including labor. An inverter PCB replacement can run $300 to $700 or more depending on the model. Compressor replacement is the most expensive outcome, typically ranging from $800 to $2,000 or higher including parts and labor.