LG HVAC Error Code 61

Error code 61 means the PCB has detected the condenser coil temperature exceeding 65°C (149°F). During cooling mode, this temperature is sensed at the outdoor unit. During heating mode, it is sensed at the indoor unit. The system shuts down to prevent damage to the compressor and refrigerant circuit.

No, you should not bypass or ignore this fault. The error indicates the coil is reaching dangerously high temperatures, and continued operation could cause compressor failure or refrigerant circuit damage. Allow the system to cool down and diagnose the root cause before restarting.

Repair costs vary widely depending on the cause. A coil cleaning or filter replacement is typically low cost, ranging from around $75 to $200 for a service call. A thermistor replacement generally falls in the $100 to $300 range including parts and labor. If the PCB needs replacement, costs can range from $300 to $700 or more depending on the model and technician rates.

Some steps are DIY-friendly, such as cleaning the filters, coil, and blower wheel, and checking that nothing is blocking airflow around the unit. However, checking refrigerant pressures for non-condensibles and testing thermistor resistance values requires gauges and a multimeter. Refrigerant work legally requires EPA 608 certification, so those steps should be handled by a licensed technician.

A reset may temporarily clear the fault and allow the unit to restart, but if the underlying cause is not resolved, the error will return. Cleaning blocked coils or filters may permanently resolve the code if restricted airflow was the cause. If a faulty thermistor or PCB is responsible, a reset will not prevent the fault from recurring.