Samsung Air Conditioner Error Code OUTDOOR_YELLOW_GREEN_RED_ALL_FLICKER

This LED pattern on the Samsung outdoor unit indicates a PFC OC (Power Factor Correction Overcurrent) error. The PFC circuit, which regulates and stabilizes power delivery to the compressor drive, has detected current exceeding safe operating limits. The unit shuts down automatically to prevent damage to internal components. Diagnosis typically begins with inspection and replacement of the outdoor control board.

No. The PFC OC error causes the outdoor unit to shut down as a protective measure, so the system will not operate normally while the fault is active. Attempting to repeatedly force the system to restart without resolving the underlying cause can cause additional damage to inverter components. Leave the unit powered off and contact a technician.

Repair costs vary based on the specific outdoor unit model and local labor rates. Outdoor control board replacement parts typically range from $150 to $450 depending on the unit, with labor adding $100 to $250 or more. If additional components such as the reactor coil or DC bus capacitor are also found to be damaged, total repair costs can be higher. A technician should diagnose the unit before parts are ordered.

This fault involves the high-voltage inverter section of the outdoor unit, which carries dangerous voltages even after power is disconnected due to stored charge in capacitors. Repair is strongly recommended to be performed by a qualified HVAC technician. A homeowner can check that the outdoor unit has clean power supply and that no wiring is visibly damaged, but board-level repair or replacement requires professional handling.

A power reset may temporarily clear the fault and allow the unit to attempt operation again, but if the underlying hardware fault persists, the error will return, often within minutes of restarting. This error is caused by a hardware failure in the PFC circuit, not a software or communication glitch, so a reset alone is not a repair. The root cause must be identified and corrected.