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Error code reference

Electrolux Dryer Error Code 42

Door closed sensing error.

Electrolux codesElectrolux dryer codes

Door closed sensing error.

First step from the service manual

Check door switch or wiring or sensing circuit on main board.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What 42 means on a Electrolux dryer

Error code 42 on an Electrolux dryer indicates a door closed sensing error. This means the dryer's control system is receiving an unexpected or inconsistent signal from the door sensing circuit. The door switch assembly is responsible for communicating the door's open or closed status to the main control board. When the board cannot confirm a valid door-closed state, it triggers this fault to prevent operation under potentially unsafe or undefined conditions.

The door switch is typically a mechanical or magnetic switch mounted near the door frame. When the door closes, the switch should complete a circuit that sends a clear signal to the main board. A failure can occur at the switch itself, in the wiring harness that connects the switch to the board, or within the sensing circuit on the main board. Wiring issues such as frayed insulation, loose connector pins, or broken wires are common contributors, especially in machines that see heavy use and frequent door cycling.

The main control board's sensing circuit interprets the voltage or continuity signal from the door switch. If the board receives a signal that is out of range, intermittent, or absent entirely, it logs error code 42. Diagnosing this fault requires checking the door switch for proper mechanical actuation and continuity, inspecting all wiring and connectors in the door switch circuit, and if those components test within spec, evaluating the sensing circuit on the main board for component failure.

Source: manufacturer service documentation.

Common causes of 42

  1. 01

    Faulty door switch

    Part replacement

    The door switch may have worn contacts or a broken actuator that prevents it from completing the circuit when the door is closed. Testing the switch for continuity with a multimeter while manually pressing the actuator will confirm whether it is functioning correctly.

  2. 02

    Loose or damaged wiring

    Wiring / connection

    The wiring harness between the door switch and the main board can develop loose connector pins, corrosion, or breaks from repeated door use. Visually inspect the connectors and wiring for any obvious damage and check for continuity through the harness.

  3. 03

    Misaligned door or door strike

    Part replacement

    If the door is misaligned or the strike tab is bent or worn, the door switch may not be physically actuated even when the door appears closed. Inspect the door alignment and the strike or latch tab for physical damage or improper positioning.

  4. 04

    Failed sensing circuit on the main control board

    Part replacement

    If the door switch and wiring both test correctly, the sensing circuit on the main board itself may have a failed component that is misreading or not registering the door switch signal. This typically requires board replacement.

See the test procedure for each cause

Frequently asked questions about 42

What does 42 mean on a Electrolux dryer?
Error code 42 on an Electrolux dryer indicates a door closed sensing error. The dryer's control board is unable to confirm a valid door-closed signal from the door switch circuit. This can be caused by a defective door switch, wiring issues, or a fault in the main board's sensing circuit. The dryer will not operate until the fault is resolved.
How do I fix error code 42 on my Electrolux dryer?
Start by inspecting the door switch and its wiring harness for damage, loose connectors, or broken wires. Use a multimeter to test the door switch for continuity when the actuator is pressed. If the switch and wiring check out, examine the door alignment and strike tab to ensure the switch is being physically actuated. If all these components appear functional, the main control board may need to be replaced.
Is it safe to use my Electrolux dryer while error code 42 is showing?
No, you should not attempt to bypass or continue using the dryer while error code 42 is active. The error indicates the dryer cannot confirm the door is securely closed, which is a safety interlock condition. Operating a dryer with an unresolved door sensing fault could pose a safety risk.
Will resetting my Electrolux dryer clear error code 42?
A power reset may temporarily clear the error code, but it will return if the underlying fault in the door switch, wiring, or sensing circuit is not repaired. Resetting the dryer is a useful first step to rule out a transient signal glitch, but a persistent code 42 requires hands-on diagnosis of the door switch circuit.
How much does it cost to repair error code 42 on an Electrolux dryer?
Repair costs depend on which component has failed. A replacement door switch is generally an inexpensive part, typically in the range of $15 to $40 for the part alone. If the main control board is the cause, parts can range from $100 to $250 or more depending on the model. Adding professional labor charges can bring the total repair cost to anywhere from $75 to $350 or higher.

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