LG Air Conditioner Error Code 32

Error code 32 on an LG air conditioner indicates that the outdoor unit's inverter compressor has exceeded its safe discharge temperature limit. The discharge temperature sensor has detected abnormally high heat levels at the compressor outlet. The system shuts down to prevent compressor damage until the fault is diagnosed and corrected.

No, you should not attempt to keep operating the unit while error code 32 is active. This fault indicates the compressor is reaching dangerously high temperatures, and continued operation could cause permanent compressor damage or a complete system failure. Allow the unit to cool down and have the fault diagnosed before restarting.

Repair costs vary widely depending on the cause. Replacing a discharge temperature sensor typically falls in the range of $75 to $200 including labor. A refrigerant recharge after leak repair can range from $150 to $400 or more. Compressor replacement, if required, is significantly more expensive, often ranging from $600 to $1,500 or higher depending on the unit size and labor rates in your area.

Some basic checks, such as clearing debris from around the outdoor unit and ensuring the condenser coil is clean, can be done without professional help. However, diagnosing a faulty discharge temperature sensor, checking refrigerant charge, or inspecting the condenser fan motor typically requires proper tools and technical knowledge. Refrigerant work must be performed by a certified technician.

A reset may temporarily clear the error and allow the unit to restart, but if the underlying cause is not addressed, the error will return quickly. Resetting without fixing the root problem, such as low refrigerant, a blocked coil, or a bad sensor, risks damaging the compressor. The fault should be properly diagnosed before relying on a reset.