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Error code reference

Electrolux Oven Error Code PFAC

Memorized parameters corrupted

Electrolux codesElectrolux oven codes

Memorized parameters corrupted - stops machine. Issue with the SW or HW.

First step from the service manual

Default all parameters / reload software.

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

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What PFAC means on a Electrolux oven

The PFAC error code on an Electrolux oven indicates that the memorized parameters stored in the control board's non-volatile memory have become corrupted. This corruption causes the oven to halt operation entirely as a protective measure, preventing the appliance from running with invalid configuration data. The parameters affected typically govern core operational settings such as temperature calibration values, cycle configurations, and hardware initialization data that the control board relies on at startup and during normal operation.

The root cause is classified as either a software (SW) or hardware (HW) issue. On the software side, corruption can occur due to a failed firmware update, an unexpected power interruption during a write cycle to memory, or a spontaneous bit-level error in the onboard EEPROM or flash memory. On the hardware side, the control board itself may have developed a fault, such as a failing memory chip or degraded solder connections, that prevents reliable data retention or retrieval.

The first diagnostic step is to attempt a parameter reset or software reload, which restores the default factory configuration values and clears the corrupted data. If the oven returns to normal operation after this procedure, the cause was likely a software-level corruption event. If the PFAC code returns shortly after the reset, this strongly points to a hardware fault on the control board, and board replacement should be considered.

Source: manufacturer service documentation.

Common causes of PFAC

  1. 01

    Power interruption during memory write

    Wiring / connection

    A sudden power outage or voltage fluctuation while the control board was saving data can corrupt the stored parameters. This is the most common trigger and is often a one-time event that a parameter reset will resolve.

  2. 02

    Failed or incomplete firmware update

    Wiring / connection

    If a software update to the control board was interrupted or loaded incorrectly, the parameter memory may be left in a corrupted state. Reloading the correct firmware version is the appropriate fix.

  3. 03

    Failing EEPROM or onboard memory chip

    Part replacement

    The non-volatile memory component on the control board can degrade over time, causing repeated parameter corruption even after resets. If the PFAC code returns after a successful reload, this hardware failure is likely the cause.

  4. 04

    Faulty control board

    Part replacement

    General hardware failure on the main control board, including degraded solder joints or a failed processor, can prevent reliable storage and retrieval of configuration data. Board replacement is required in this scenario.

  5. 05

    Electrical supply issues

    Wiring / connection

    Chronic low voltage or unstable power supply to the oven can stress the control board over time and lead to recurring memory corruption. Checking the supply voltage and circuit integrity is advisable if the error recurs.

See the test procedure for each cause

Frequently asked questions about PFAC

What does PFAC mean on a Electrolux oven?
PFAC indicates that the memorized configuration parameters stored on the oven's control board have become corrupted. When this happens, the oven stops operating as a safety precaution. The fault is attributed to either a software issue, such as a failed firmware write, or a hardware issue, such as a failing memory component on the control board.
Can I fix the PFAC error myself without a technician?
The first recommended step is to reset all parameters to their defaults or reload the software, which a qualified technician can perform using a service tool. If you are comfortable with appliance diagnostics and have access to the appropriate software interface, this step can sometimes resolve the issue without further repair. However, if the error returns after the reset, a control board replacement is likely needed and professional service is recommended.
Is it safe to use my Electrolux oven while the PFAC code is displayed?
No. The PFAC error causes the oven to stop operation entirely, meaning it will not function while the code is active. Do not attempt to bypass the error or force the oven to operate, as running the appliance with corrupted control parameters could produce unpredictable behavior. The oven should remain out of service until the fault is diagnosed and resolved.
Will resetting the oven clear the PFAC error code?
A standard power reset, such as unplugging the oven or cycling the circuit breaker, is unlikely to resolve PFAC because the corruption is stored in non-volatile memory that retains data without power. The correct procedure is a full parameter default or software reload performed through the service interface. If the reset clears the code and it does not return, the issue was a software-level corruption. If the code comes back, the control board hardware needs further evaluation.
How much does it cost to repair a PFAC error on an Electrolux oven?
If the issue is resolved through a parameter reset or firmware reload alone, repair costs are primarily labor-based and typically fall in the range of $75 to $150 depending on the service provider. If a control board replacement is required, total costs including parts and labor generally range from $200 to $500 or more, depending on the specific model and part availability. Getting a diagnostic visit first is advisable before committing to parts replacement.

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