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Error code reference

Electrolux Washer Error Code EDC

WDM heating element opened

Electrolux codesElectrolux washer codes

WDM heating element opened - incongruence between sensing of heater_relay1 and heater_relay2 when both switched off.

First step from the service manual

Check drying heating elements for open circuit or unplugged wiring.

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

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What EDC means on a Electrolux washer

The EDC error code on an Electrolux washer indicates that the WDM (Washer Dryer Module) drying heating element has developed an open circuit condition. Specifically, the control board detects an incongruence between the feedback signals from heater_relay1 and heater_relay2 when both relays are commanded to the off position. Under normal operation, these two relay sensing circuits should report consistent states. When the board sees a mismatch between the two relay feedback signals during the off cycle, it interprets this as a failed or disconnected heating element and throws the EDC fault.

The heating element itself is the most common root cause. An open circuit in the element means the resistive heating wire has physically broken, interrupting the circuit completely. This is a failure that develops over time due to thermal cycling, mineral buildup, or manufacturing defects. Beyond the element itself, the wiring harness connecting the element to the relay board can develop faults including broken wires, corroded terminals, or connectors that have vibrated loose during spin cycles. Either condition would prevent the control board from seeing a coherent signal across both relay feedback circuits.

Diagnostic work should begin with a visual inspection of the drying heating element and its associated wiring. Check all connectors for secure seating and inspect wires for visible damage or corrosion. The element itself can be tested for continuity using a multimeter. An open reading across the element terminals confirms the element has failed and requires replacement. If the element tests good, trace the wiring harness back to the relay board looking for breaks or poor connections.

Source: manufacturer service documentation.

Common causes of EDC

  1. 01

    Failed drying heating element (open circuit)

    Part replacement

    The resistive heating wire inside the drying element has broken, creating an open circuit. Confirm this by testing continuity across the element terminals with a multimeter. No continuity indicates the element must be replaced.

  2. 02

    Unplugged or disconnected wiring harness

    Wiring / connection

    Vibration from spin cycles can loosen the connectors that attach the heating element to the control circuit. Inspect all connectors at the element and at the relay board for secure seating.

  3. 03

    Corroded or damaged wiring terminals

    Wiring / connection

    Moisture inside the cabinet can cause terminal corrosion that increases resistance or breaks continuity in the heater circuit. Look for greenish or white buildup on connector pins and wiring ends near the element.

  4. 04

    Broken wire in the heater harness

    Wiring / connection

    A wire in the harness connecting the element to the relay board may have chafed, pinched, or broken internally. Carefully flex the harness along its length while monitoring for continuity changes to locate the fault.

  5. 05

    Faulty relay board

    Part replacement

    If the heating element and all wiring test good, one of the heater relay circuits on the control board may have failed, causing the incongruence between heater_relay1 and heater_relay2 feedback. This is the least common cause but requires board replacement if confirmed.

See the test procedure for each cause

Frequently asked questions about EDC

What does EDC mean on a Electrolux washer?
The EDC code indicates the control board has detected an open circuit condition in the WDM drying heating element. More precisely, it means the feedback signals from the two heater relay circuits are inconsistent with each other when both relays are switched off. This typically points to a burned-out heating element or a wiring fault in the heater circuit. The machine will not complete the drying portion of a wash-dry cycle until the fault is corrected.
Can I fix the EDC error myself?
Some causes of the EDC code are DIY-friendly. Start by checking all wiring connectors at the drying heating element and along the harness to the relay board, reseating any that are loose. Use a multimeter to test the heating element for continuity. A reading showing no continuity means the element is open and needs replacement, which is a moderate difficulty repair that requires disassembling part of the machine. If wiring and the element both test good, the relay board may be the issue, which is a more advanced repair.
Is it safe to keep using my Electrolux washer with the EDC error?
The washer's wash functions may still operate with the EDC fault present, but the drying cycle will not work correctly. Running the appliance repeatedly while the fault exists is not recommended because an open or damaged heater circuit can indicate underlying wiring issues that could worsen over time. Address the fault before relying on the drying function again.
Will resetting the washer clear the EDC error code?
A power reset may temporarily clear the EDC code from the display, but it will return as soon as the control board re-checks the heater relay circuits and detects the same incongruence. Because the code reflects a real hardware condition, it will not go away until the underlying fault, either a failed element or a wiring problem, is actually repaired.
How much does it cost to repair the EDC error on an Electrolux washer?
If the repair only requires reseating a loose connector, the cost is essentially nothing beyond your time. Replacing the drying heating element typically costs between $40 and $120 for the part, plus labor if you hire a technician, which can bring the total to $150 to $350 depending on your area and the specific model. Relay board replacement is generally more expensive, with parts alone ranging from $80 to $200 or more.

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