Daewoo Refrigerator Error Code Co

The Co code on a Daewoo refrigerator means the unit has entered short circuit operation mode. In this state, the compressor and both compartment fans run continuously as a protective measure. The code is designed to keep the refrigerator cooling even when a control fault is detected. It will automatically cancel after 30 hours of continuous operation once power is supplied.

In most cases, yes. The Co mode is a fallback state where the refrigerator continues to actively cool by running the compressor and fans nonstop. Your food should remain cold during this period. That said, continuous compressor operation increases energy consumption and wear, so it is worth investigating if the code reappears after the 30-hour window.

If the code resolves on its own within 30 hours, the cost is nothing. If a temperature sensor is faulty, parts and labor typically range from $75 to $200 depending on the specific sensor and service rates in your area. A control board replacement, if needed, is generally more expensive, often falling in the $150 to $400 range including parts and labor.

Yes, the Co error is designed to cancel automatically after 30 continuous hours of operation following a power restoration. You do not need to perform a manual reset. However, if the code returns after clearing, there is likely an underlying fault with a sensor, wiring, or the control board that needs further diagnosis.

Start by allowing the refrigerator to run uninterrupted for the full 30-hour auto-cancellation period. If the code clears and does not return, the cause was likely a temporary power event. If it returns, check the temperature sensors for shorts or incorrect resistance, inspect the wiring harness for damage, and examine connector terminals for moisture or corrosion. Persistent recurrence may point to a faulty control board requiring replacement.