Electrolux Washer Error Code 42

Error code 42 on an Electrolux washer indicates a door lock device failure. The door lock, also called the door latch assembly or door interlock, is an electromechanical component that secures the washer door during operation and signals the main control board that the door is safely closed. When the control board cannot confirm proper door lock engagement or receives an unexpected signal from the lock mechanism, it triggers error code 42 and halts the cycle to prevent the door from opening during spin or wash.

The diagnostic process centers on test (6), which involves checking the door lock assembly itself along with all associated wiring between the lock and the main control board. Common failure points include a faulty door lock solenoid or switch assembly, damaged or corroded wiring harness connections, a broken door strike that prevents full engagement, or a failed control board that cannot correctly send or receive lock signals. The lock assembly contains internal switches that communicate lock status to the board, and any break in that signal path will trigger this code.

Before replacing components, technicians should inspect the wiring harness for pinched, burnt, or corroded wires and verify that all connectors at both the door lock and the main control board are fully seated. Resistance across the lock solenoid coil should be within the specification listed for that model. If wiring and connections check out, the door lock assembly is the most frequent hardware culprit. A failed main control board is possible but less common and should only be suspected after the lock and wiring have been ruled out.