Goodman Air Conditioner Error Code LC

The LC code means the outdoor coil thermistor has detected a high temperature at the condenser coil. This is a protective fault that prevents the system from running under conditions that could damage the compressor. It is most often triggered by dirty condenser coils or a condenser fan problem. The code will reset after the underlying cause is corrected.

Yes, according to Goodman diagnostic information, the LC code is designed to reset automatically after the cause of the high coil temperature is addressed. Simply cleaning the condenser coils and confirming the fan is operating correctly is typically enough to allow the system to reset and resume normal operation. If the code returns after cleaning, a deeper fault such as a failed thermistor or low refrigerant charge needs investigation.

If the fix is a coil cleaning, costs are generally in the range of $75 to $200 for a professional service call and cleaning. A condenser fan motor replacement typically runs between $150 and $400 depending on the motor and labor rates in your area. If the outdoor coil thermistor needs replacement, parts and labor usually fall in the $100 to $250 range. Refrigerant-related repairs vary widely based on the refrigerant type and the extent of any leak.

Start by turning off the unit and cleaning the condenser coils using a coil cleaner and a gentle water rinse to remove dirt and debris from the fins. Then confirm the condenser fan spins freely, runs when the system is powered, and moves air upward out of the top of the unit. If the coils are clean and the fan is working correctly but the code returns, have a technician test the outdoor coil thermistor and check refrigerant pressure.

No, you should not continue operating the system while the LC fault is active. The code exists to protect the compressor and refrigerant components from heat-related damage. Running the system through repeated fault cycles without addressing the cause can lead to compressor failure, which is a much more expensive repair than fixing the original problem.