Daewoo Washer Error Code E4

The E4 code on a Daewoo washer indicates a load sensing error. After the washer runs its 7-second load sensing routine, it cannot get a valid reading from the water level sensor, so the code appears briefly and the machine locks into the high water level setting. The root cause is typically a defective water level sensor or a faulty connection between the sensor and the main control board.

The washer will continue to operate with the E4 code active, but it will default to using the high water level for every cycle, regardless of load size. This wastes water and can stress the pump and motor over repeated cycles. It is best to diagnose and repair the fault promptly rather than running the machine indefinitely in this condition.

Repair costs vary based on which component is at fault. A water level sensor replacement typically runs in the range of $15 to $60 for the part alone, while a full PCB assembly can range from $80 to $200 or more depending on availability. Adding professional labor costs, a technician visit can bring the total to anywhere from $100 to $300 or higher depending on your location and the parts required.

Some aspects of this repair are DIY-friendly. Start by unplugging the washer and locating the water level sensor and its connector, then check for corrosion, loose pins, or disconnected wiring. Reseating the connector and cleaning the terminals may resolve the error. If the sensor itself is bad or the PCB needs replacement, those repairs typically require sourcing the correct parts and basic appliance repair skills.

A reset may temporarily clear the displayed code, but the underlying fault in the water level sensing circuit will remain. As soon as the washer attempts the load sensing routine again, the E4 code will return. A permanent fix requires repairing or replacing the water level sensor, the connector, or the PCB assembly depending on what the diagnosis reveals.