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Error code reference

Electrolux Washer Error Code E23

Drain pump triac failure

Electrolux codesElectrolux washer codes

Drain pump triac failure - incongruence between drain pump triac sensing and triac output from microprocessor.

First step from the service manual

Check drain pump, wiring, or main board.

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

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What E23 means on a Electrolux washer

The E23 error code on an Electrolux washer indicates a drain pump triac failure, specifically an incongruence detected between the drain pump triac sensing signal and the triac output command issued by the microprocessor. A triac is a bidirectional semiconductor switch on the main control board that regulates power delivery to the drain pump motor. When the microprocessor sends a command to activate or deactivate the pump, it simultaneously monitors feedback from the triac sensing circuit to confirm the switch is operating correctly. If the sensed state does not match the commanded output, the board registers this mismatch and triggers E23.

This fault can originate from three primary areas: the drain pump itself, the wiring harness connecting the pump to the control board, or the main control board. A failed or seized drain pump can draw abnormal current, causing the triac to behave erratically or fail outright. Damaged wiring, corroded connectors, or a broken harness between the pump and board can disrupt the sensing signal, producing false incongruence readings. In some cases, the triac component on the main board burns out or shorts, making the board unable to accurately switch or sense pump operation.

Diagnosis should begin with a visual inspection of the drain pump for blockages, physical damage, or signs of burning. The wiring harness between the pump and main board should be checked for continuity, chafing, and secure connections at both ends. If the pump and wiring pass inspection, the main control board is likely the source of the fault and will typically need replacement.

Source: manufacturer service documentation.

Common causes of E23

  1. 01

    Failed or seized drain pump

    Part replacement

    A drain pump motor that has seized, burned out, or is drawing irregular current can cause the triac to malfunction and produce a sensing mismatch. Inspect the pump for blockages, listen for unusual humming, and check the motor windings for continuity.

  2. 02

    Burned or shorted triac on main control board

    Part replacement

    The triac semiconductor on the main board can fail due to voltage spikes, overheating, or pump overcurrent events. A burned triac will prevent the board from properly switching or sensing pump operation, triggering E23 even when the pump and wiring are intact.

  3. 03

    Damaged or corroded wiring harness

    Wiring / connection

    Chafed wires, broken connectors, or corrosion in the harness between the drain pump and main board can interrupt the sensing signal and create an apparent incongruence. Inspect the full length of the harness and check connector terminals for oxidation or looseness.

  4. 04

    Loose or disconnected pump connector

    Wiring / connection

    A connector that has partially separated at the pump or board end can intermittently break the circuit, causing sensing errors. Unplug and firmly reseat all connectors related to the drain pump circuit.

  5. 05

    Main control board failure

    Part replacement

    If the pump, wiring, and connectors all check out correctly, the main control board itself may have internal damage beyond the triac, requiring full board replacement to resolve the fault.

See the test procedure for each cause

Frequently asked questions about E23

What does E23 mean on a Electrolux washer?
E23 indicates a drain pump triac failure caused by an incongruence between the drain pump triac sensing signal and the triac output from the microprocessor. Essentially, the control board sent a command to the drain pump but the feedback it received did not match what it expected. This points to a problem with the drain pump, the wiring harness, or the main control board.
Can I fix the E23 error myself?
Some steps are DIY-friendly, such as inspecting the drain pump for blockages, checking wiring connectors for looseness or corrosion, and reseating harness plugs. However, if the triac on the main board has failed or the pump motor is burned out, those repairs typically require replacing components and are better suited to technicians with electrical testing experience.
Will resetting the washer clear the E23 error?
A reset may temporarily clear the code, but if the underlying fault in the pump, wiring, or control board has not been corrected, the error will return as soon as the washer attempts to drain again. A reset is useful for confirming whether the fault is intermittent, but it is not a repair.
Is it safe to use my washer when E23 is displayed?
It is not recommended to continue running the washer with an active E23 code. A faulty drain pump triac means the machine may be unable to drain properly, and running cycles with a compromised control circuit can cause water to remain in the drum or potentially worsen damage to the board or pump.
How much does it cost to repair an E23 error on an Electrolux washer?
Repair costs vary depending on the failed component. A replacement drain pump typically ranges from $30 to $100 for the part, while a main control board can range from $100 to $300 or more. Adding professional labor, total repair costs generally fall between $150 and $450 depending on which component is at fault and local service rates.

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