Samsung Air Conditioner Error Code OUTDOOR_YELLOW_FLICKER

OUTDOOR_YELLOW_FLICKER signals that the discharge temperature sensor detected refrigerant gas leaving the compressor at an unsafe temperature, causing the system to shut down as a protective measure. The outdoor unit uses a yellow LED flicker pattern to communicate this specific fault. The most common triggers are low refrigerant charge, blocked airflow around the outdoor unit, or a failing compressor.

No, you should not attempt to force the unit to continue running while this fault is active. The system shuts down specifically to protect the compressor from heat damage, and bypassing or repeatedly resetting through a high discharge temperature condition can cause permanent compressor failure. Leave the unit off until the underlying cause has been identified and corrected.

A power cycle or reset may temporarily clear the fault and allow the unit to restart, but if the underlying cause such as low refrigerant or blocked airflow is not addressed, the discharge temperature will trip the fault again quickly. Repeated resets without fixing the root problem increase the risk of compressor damage. A reset should only be used as part of a diagnostic process, not as a long-term solution.

Homeowners can check and clear any debris or obstructions around the outdoor unit and clean visible dirt from the condenser coil fins, which may resolve an airflow-related trip. However, diagnosing and correcting a refrigerant undercharge requires EPA 608 certification to handle refrigerants legally, and compressor testing requires specialized tools. Most causes of this error will need a certified technician to properly diagnose and repair.

Repair costs depend heavily on the root cause. A coil cleaning service typically runs in the range of $100 to $250. Refrigerant recharge, including leak detection, can cost between $200 and $600 depending on the refrigerant type and amount required. Compressor replacement is the most expensive outcome, generally ranging from $800 to $2,000 or more including labor, parts, and refrigerant.