Daewoo Air Conditioner Error Code LED 1 time blink

The LED 1 time blink error code on a Daewoo air conditioner indicates that a refrigerant gas leak has been detected by the system. The unit continues to run rather than shutting off, but cooling capacity will be reduced. A technician should inspect all refrigerant piping, joints, and coils to locate and repair the leak source before recharging the system.

Continuing to run the unit while a refrigerant leak is present is not recommended for extended periods. Low refrigerant levels cause the compressor to operate under increased stress, which can lead to compressor overheating or premature failure. It is best to limit use and schedule a service call promptly to avoid more costly secondary damage.

Resetting the unit may temporarily clear the error display, but the underlying refrigerant leak will remain. The error will return once the system re-evaluates its operating conditions. A reset is not a repair, and the leak must be physically found, fixed, and the system properly recharged before the error will clear permanently.

Locating the leak by visually inspecting lines for oil staining is something a knowledgeable DIYer can attempt, but repairing the leak and recharging the refrigerant requires EPA 608 certification and specialized equipment. Attempting to add refrigerant without finding and repairing the leak first will only delay the problem. A licensed HVAC technician should handle the repair and recharge.

Repair costs vary depending on the leak location and the amount of refrigerant needed. A minor joint repair combined with a refrigerant recharge typically ranges from $150 to $450. If a coil or line set needs replacement, costs can rise to $400 to $1,200 or more depending on parts availability and labor rates in your area.