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Error code reference

Electrolux Dryer Error Code EAF

Microcontroller has been reset by internal Watchdog timer (Watch Dog Reset).

Electrolux codesElectrolux dryer codes

Microcontroller has been reset by internal Watchdog timer (Watch Dog Reset).

First step from the service manual

Clear code, exit mode and start dryer. If problem persists, replace electronic control.

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

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What EAF means on a Electrolux dryer

The EAF error code on an Electrolux dryer indicates that the microcontroller on the electronic control board has been forcibly reset by its internal watchdog timer. A watchdog timer is a supervisory circuit built into the microcontroller that monitors normal program execution. If the main program loop fails to respond within a defined time window, the watchdog assumes the processor has locked up or entered an invalid state and triggers an automatic reset to attempt recovery. This is a protective mechanism, not a normal operating condition.

When EAF appears, it means the microcontroller experienced at least one unrecoverable software halt or processing fault during operation. This can result from corrupted firmware, unstable power supply voltage to the control board, electrical noise on the control circuit, or a hardware fault within the microcontroller itself. The watchdog reset may have temporarily resolved the lockup, but the error code is stored to alert a technician that the condition occurred.

Diagnosis begins by clearing the code, exiting diagnostic mode, and running the dryer through a normal cycle to see if the condition repeats. A one-time occurrence may point to a transient power fluctuation or electrical noise event. If the code returns consistently, the electronic control board is likely faulty and will need replacement. There are no intermediate component-level repairs for a failed microcontroller; the entire control board assembly must be replaced.

Source: manufacturer service documentation.

Common causes of EAF

  1. 01

    Faulty electronic control board

    Part replacement

    The microcontroller on the control board may have a hardware defect causing repeated processor lockups. If the EAF code returns after clearing, this is the most likely cause and the board will need replacement.

  2. 02

    Unstable or low supply voltage

    Wiring / connection

    Voltage fluctuations or drops in the power supply reaching the control board can cause the microcontroller to malfunction and trigger the watchdog reset. Check that the dryer is on a dedicated circuit with stable voltage within the rated specification.

  3. 03

    Electrical noise or interference on the control circuit

    Wiring / connection

    High-frequency electrical noise from other components or external sources can disrupt microcontroller operation. Inspect wiring harnesses for damage, loose connectors, or proximity to high-current components.

  4. 04

    Transient power event

    Wiring / connection

    A brief power surge, brownout, or interruption during a cycle can cause a one-time watchdog reset. If the code clears and does not return, this is likely the cause and no repair is needed.

  5. 05

    Corrupted control board firmware

    Part replacement

    In rare cases, the firmware stored in the microcontroller can become corrupted, causing the program to halt unexpectedly and repeatedly trigger the watchdog. This is not field-recoverable and requires control board replacement.

See the test procedure for each cause

Frequently asked questions about EAF

What does EAF mean on a Electrolux dryer?
The EAF code means the microcontroller on the electronic control board was reset by its internal watchdog timer. The watchdog timer is a protective circuit that restarts the processor when it detects a freeze or software lockup. This code is stored to alert you that the event occurred, even if the dryer appeared to recover on its own. If the code returns after being cleared, the control board is likely defective.
Will resetting the dryer clear the EAF error code?
You can clear the EAF code by entering diagnostic mode, clearing the stored code, and exiting. If the underlying cause was a one-time power fluctuation or transient event, the code should not return. However, if the control board has a hardware or firmware fault, the code will reappear during normal operation and resetting alone will not resolve the issue.
How do I fix the EAF error on my Electrolux dryer?
Start by clearing the code and running the dryer through a normal cycle. If the error does not return, no further action is needed. If EAF appears again, inspect the power supply for voltage issues and check all wiring harness connections to the control board. If those checks do not reveal a problem, the electronic control board will need to be replaced.
Is it safe to use my Electrolux dryer when the EAF code is showing?
The EAF code indicates a control board fault, which means the dryer may not operate reliably or may shut down unexpectedly. It is advisable to avoid using the dryer until the issue is diagnosed and resolved. Continued use with a faulty control board could result in incomplete cycles or unpredictable behavior.
How much does it cost to repair an EAF error on an Electrolux dryer?
If the issue requires replacing the electronic control board, parts alone typically range from roughly 100 to 300 dollars depending on the specific dryer model. Adding professional labor, total repair costs generally fall between 150 and 400 dollars. If the EAF code was caused by a one-time transient event and does not return after clearing, no parts or service cost is involved.

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