LG Heat Pump Error Code 32

Error code 32 means the inverter compressor shut down three times within one hour because the discharge temperature exceeded safe limits. This is a protective fault designed to prevent compressor damage from overheating. The code points to a problem with either the discharge temperature sensor itself or a real overheating condition caused by refrigerant, airflow, or compressor issues. The system will not resume normal operation until the underlying cause is resolved.

No, continuing to operate the system while this fault is active risks serious and potentially irreversible compressor damage. The unit has already cycled off three times as a self-protection measure, and running it further under the same conditions can damage the compressor windings, degrade the lubricating oil, and lead to a full compressor failure. The system should remain off until the fault is diagnosed and corrected.

Repair costs vary widely depending on the root cause. Replacing a discharge temperature sensor is typically a lower-cost repair, generally in the range of $100 to $300 including labor. Refrigerant recharge or leak repair can range from $200 to $600 or more depending on the amount needed and whether a leak is present. Compressor replacement is the most expensive scenario, with costs commonly ranging from $1,200 to $2,500 or higher depending on the unit size and labor rates in your area.

Some contributing factors, like dirty coils or a clogged air filter, can be checked and corrected by a knowledgeable homeowner. However, diagnosing a faulty discharge temperature sensor, checking refrigerant charge, or evaluating compressor condition requires specialized tools and in the case of refrigerant, EPA certification. For most situations beyond basic airflow checks, a qualified HVAC technician should be contacted.

A power reset may temporarily clear the fault and allow the unit to restart, but if the underlying cause is not addressed, the system will accumulate three more high-temperature shutdowns and the code will return. Resetting without repair is not a solution and increases the risk of compressor damage over time. The fault should be properly diagnosed before resetting and restarting the unit.