Samsung Air Conditioner Error Code RED_ON_GRN_ON

RED_ON_GRN_ON indicates the compressor peak current protection circuit has activated, meaning the compressor was drawing more electrical current than the safe operating limit allows. The system shuts down the compressor automatically to prevent motor or component damage. This fault requires diagnosis of airflow, refrigerant charge, and compressor condition before the unit can safely return to operation.

No. The overcurrent protection is designed to prevent serious damage, and repeatedly attempting to run the unit while the underlying cause is unresolved risks burning out the compressor motor or causing electrical faults. The system should remain off until a technician has diagnosed and corrected the problem.

Repair costs vary widely depending on the cause. Cleaning the condenser coil and improving ventilation is relatively inexpensive, typically in the range of $75 to $200 for a service call. Refrigerant adjustment or leak repair can range from $150 to $500 or more depending on the refrigerant type and amount needed. Compressor replacement is the most expensive outcome, generally ranging from $600 to $1,500 or higher depending on the unit size and labor rates in your area.

Some contributing factors, such as clearing debris from around the outdoor unit or improving ventilation clearance, can be addressed by a homeowner. However, checking refrigerant pressures, measuring compressor winding resistance, and diagnosing electrical faults requires certified HVAC technician tools and, in the case of refrigerant work, EPA 608 certification. Attempting refrigerant or compressor repairs without proper training can be dangerous and may void your warranty.

A power reset may clear the fault code temporarily and allow the unit to restart, but if the root cause has not been corrected, the overcurrent protection will trigger again. Repeated resets without addressing the underlying issue can accelerate compressor wear. A reset should only be performed after the contributing condition has been identified and resolved.