Samsung Air Conditioner Error Code YEL_ON_RED_FLICKER_GRN_FLICKER

This LED pattern indicates an OPTION error related to the EEPROM memory chip on the outdoor control board. The EEPROM stores the unit's configuration and operating parameters, and when this data cannot be read or verified correctly, the system triggers this fault. The yellow LED stays on while the red and green LEDs flicker to signal the error. Resolving it typically requires inspecting or replacing the outdoor control board.

A power reset may temporarily clear the displayed fault, but if the EEPROM on the outdoor control board is genuinely corrupted or failed, the OPTION error will return as soon as the unit attempts to read the stored configuration data. A reset alone does not repair the underlying hardware problem and is not a reliable fix for this code.

Repair costs vary depending on the specific outdoor unit model and local labor rates. An outdoor control board replacement typically falls in the range of $150 to $600 or more, including parts and labor. Obtaining quotes from multiple certified technicians before authorizing the repair is advisable to ensure a fair price.

Basic visual inspection of the outdoor control board for obvious damage such as corrosion or burned components is something a knowledgeable DIYer can perform. However, replacing the outdoor control board involves working with high-voltage components and refrigerant system wiring, which carries serious safety risks. Most technicians recommend having a certified HVAC technician handle this repair.

An OPTION error typically prevents the unit from operating normally, so continued use is unlikely without resolving the fault first. Attempting to force operation with a corrupted EEPROM could result in the system running outside its intended parameters. It is best to shut the unit off and have it inspected promptly to avoid any further damage to the control board or other components.