Electrolux Washer Error Code ED5

The ED5 error code on an Electrolux washer indicates a relay sensing failure associated with the second wash/dry (WD) heating element circuit. Specifically, the control system has detected that the sensing signal from the relay controlling heating element 2 has fallen outside of its accepted operating limits. This is a feedback monitoring fault: the WD board continuously monitors the relay's output signal to confirm correct switching behavior, and when that signal is absent, erratic, or outside the expected voltage range, the ED5 code is triggered.

The WD board is the primary component responsible for managing heating element relay operations, including energizing and de-energizing the relays that power the heating elements during wash or drying cycles. A failure in the sensing circuit can result from a faulty relay on the WD board itself, a damaged sensing trace or component on the board, or a wiring issue between the board and the heating element circuit. Because the sensing signal is generated and read internally by the WD board, the board is the first and most critical point of inspection.

Common contributing factors include relay contact failure due to heat stress or age, cold solder joints on the relay legs of the WD board, or a complete board failure. Wiring harness issues such as loose connectors or damaged wires feeding the sensing circuit can also produce this fault. Since the error specifically references a sensing signal out of limits rather than a complete open or short circuit, intermittent connection problems or partially failed relay components are plausible causes that may not be immediately obvious during a visual inspection.