Samsung Air Conditioner Error Code YEL_ON_RED_FLICKER_GRN_ON

This LED indicator pattern signals that the Overload Protector (OLP) sensor has tripped due to an over-temperature condition at or near the compressor. The OLP is a safety device that shuts down the compressor when temperatures exceed safe operating limits. The fault typically points to problems with ventilation, refrigerant charge, the condenser fan motor, or the compressor itself. The system will not resume normal cooling until the underlying cause is identified and corrected.

No. The OLP has already interrupted compressor operation as a protective measure, and the unit should not be forced back into service without identifying the root cause. Repeatedly resetting the unit and running it under the fault condition can cause permanent compressor damage, which is the most costly component to replace. Address the underlying problem before restoring normal operation.

Repair costs vary widely depending on the root cause. Cleaning the condenser and improving airflow is generally low cost, in the range of $75 to $200 for a service call. Refrigerant leak repair and recharge typically runs $200 to $600 or more depending on the refrigerant type and leak location. Condenser fan motor replacement generally falls in the $150 to $400 range, while compressor replacement is the most expensive outcome, often ranging from $800 to $2,000 or higher including labor.

Some causes, such as clearing debris from around the outdoor unit or removing obstructions blocking airflow, can be addressed without professional tools. However, diagnosing refrigerant charge issues requires certified HVAC equipment and a licensed technician. Compressor and fan motor testing also requires electrical knowledge and proper safety precautions, so those steps are best handled by a qualified technician.

Powering the unit off and allowing the compressor to cool may temporarily clear the OLP trip and allow the system to restart. However, if the underlying cause such as blocked airflow, low refrigerant, or a failing fan motor is not resolved, the OLP will trip again, often within a short period. A reset is only useful as part of a diagnostic process, not as a permanent fix.