Electrolux Washer Error Code ED3

The ED3 error code on an Electrolux washer-dryer indicates a fault detected in the drying heating element relay circuit, specifically relay 2. This relay is controlled through the WD (washer-dryer) board and is responsible for energizing the drying heating element during drying cycles. When the control system detects an anomaly in this relay circuit, whether due to a signal that falls outside expected parameters or a failure to respond correctly, it logs ED3 and typically halts the drying function to prevent unsafe operation.

The most common sources of this fault fall into four categories: wiring faults between the WD board and the thermostats, failed or out-of-specification thermostats, a faulty WD board, or a defective main PCB. The wiring harness connecting these components can suffer from heat damage, corrosion at connectors, or physical breaks that interrupt the relay control circuit. The thermostats themselves can fail open or closed, sending incorrect feedback to the control system about heating element status.

Diagnosis should begin with a thorough inspection of all wiring and connectors between the WD board and the thermostats, checking for continuity and secure connections. If wiring checks out, each thermostat should be tested for correct resistance and continuity at ambient temperature. If both wiring and thermostats pass inspection, the WD board and main PCB become the likely culprits and should be evaluated or replaced in sequence to isolate the fault.