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Error code reference

Electrolux Dryer Error Code E43

Incongruency of the sensing signal of the door interlock.

Electrolux codesElectrolux dryer codes

Incongruency of the sensing signal of the door interlock.

First step from the service manual

Check door interlock, wiring, and electronic board.

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

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What E43 means on a Electrolux dryer

The E43 error code on an Electrolux dryer indicates an incongruency in the sensing signal from the door interlock circuit. This means the control board is receiving a signal from the door interlock that contradicts the expected state, either the signal is absent when it should be present, or the board is detecting a conflicting input that does not match a valid locked or unlocked condition. The door interlock is a safety device that confirms the dryer door is properly closed and latched before the appliance is permitted to run a cycle.

The most likely sources of this fault are the door interlock component itself, the wiring harness connecting the interlock to the main electronic board, or the board's input circuitry for that signal. A failed or worn interlock switch may send an intermittent or incorrect voltage signal. Damaged wiring, including broken conductors, corroded terminals, or pinched harnesses near the door hinge area, can also disrupt signal integrity and trigger this code.

Diagnosing E43 starts with a physical inspection of the door latch and interlock mechanism for visible damage or wear, followed by continuity and resistance checks on the interlock switch and the associated wiring. If the interlock and wiring check out correctly, the electronic control board should be evaluated, as a faulty input on the board can misread a valid signal and generate this incongruency fault.

Source: manufacturer service documentation.

Common causes of E43

  1. 01

    Faulty door interlock switch

    Part replacement

    The interlock switch itself can wear out or fail, sending an inconsistent or incorrect signal to the control board. Testing the switch for proper continuity in both open and closed door positions will confirm if it has failed.

  2. 02

    Damaged or corroded wiring harness

    Part replacement

    Wires running between the door interlock and the control board can break, fray, or develop corroded terminals, especially near the door hinge area where repeated flexing occurs. Visually inspect the wiring and check for continuity along the circuit.

  3. 03

    Misaligned or worn door latch

    Wiring / connection

    If the door latch is worn or the door does not close with proper alignment, the interlock switch may not engage fully, causing an inconsistent signal. Check that the door closes firmly and that the latch mechanism seats correctly.

  4. 04

    Loose connector at the control board or interlock

    Wiring / connection

    Connector pins can loosen over time due to vibration, leading to intermittent signal loss that the board interprets as an incongruency. Reseat all connectors at both the door interlock and the main board and inspect for bent or pushed-back pins.

  5. 05

    Failed electronic control board

    Part replacement

    If the interlock, wiring, and connectors all check out correctly, the input circuitry on the control board may be defective and misreading a valid signal. Board failure is less common but should be considered after all other components are ruled out.

See the test procedure for each cause

Frequently asked questions about E43

What does E43 mean on a Electrolux dryer?
E43 indicates an incongruency in the door interlock sensing signal. The control board is receiving a signal from the door interlock that does not match a valid expected state, either locked or unlocked. This triggers a fault to prevent the dryer from operating unsafely. The fault can originate from the interlock switch, the wiring, or the control board.
Can I fix the E43 error myself?
Some causes of E43 are accessible to a knowledgeable DIYer, such as reseating loose connectors, inspecting wiring for visible damage, or checking the door latch alignment. Replacing the door interlock switch is a moderate repair that requires disassembly of the door panel. If the control board needs replacement, that is a more involved repair that some DIYers may prefer to leave to a technician.
Is it safe to use my Electrolux dryer when E43 is displayed?
You should not continue using the dryer while the E43 code is active. The door interlock is a safety circuit designed to ensure the door is securely closed before and during operation. An incongruency in this circuit means the dryer cannot confirm the door is properly secured, which presents a safety risk. Resolve the fault before running any cycles.
Will resetting my Electrolux dryer clear the E43 error?
A power reset, such as unplugging the dryer for a few minutes and restoring power, may temporarily clear the E43 code if the fault was caused by a transient signal issue. However, if the underlying problem is a worn interlock switch, damaged wiring, or a failing control board, the code will return. A reset should be seen as a diagnostic step, not a permanent fix.
How much does it cost to repair an E43 error on an Electrolux dryer?
Repair costs vary depending on the faulty component. A replacement door interlock switch typically costs between $15 and $50 for the part. If the control board is at fault, parts alone can range from $100 to $300 or more. Adding professional labor, total repair costs generally fall between $100 and $400 depending on the diagnosis and parts required.

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