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Error code reference

Electrolux Dryer Error Code E97

Missing program on CTF error

Electrolux codesElectrolux dryer codes

Missing program on CTF error — discrepancy between programme configuration data and selector recognition data.

First step from the service manual

Check if correct Cycle Selector Board, User Interface Board, and Electronic Control Board are installed; replace if incorrect.

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

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  • Wiring diagram references and connector pinouts from the OEM service manual
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What E97 means on a Electrolux dryer

The E97 error code on an Electrolux dryer signals a configuration mismatch between the programme data stored or expected by the Electronic Control Board (ECB) and the selector recognition data being received from the Cycle Selector Board. This is a CTF (Cycle Translation File) error, meaning the control system cannot reconcile the cycle programme information with what the selector is communicating. The dryer's control architecture relies on all three boards, the Cycle Selector Board, the User Interface Board, and the Electronic Control Board, being correctly matched to one another. When any one of these components is incompatible with the others, the system flags this discrepancy as E97.

This type of error most commonly appears after a board replacement where an incorrect or incompatible part was installed. Each board carries specific configuration data that must align with the other boards in the system. If a technician installs a Cycle Selector Board or ECB intended for a different model or variant, the programme table on one board will not match the selector recognition data on another, triggering the fault. It can also occur if a board was replaced with a unit that has different firmware or hardware revision.

Because this is fundamentally a compatibility and configuration error rather than a wiring or sensor failure, the diagnostic path focuses on verifying that the correct board part numbers are installed across all three components. Physical damage or communication wiring faults can also contribute, but the primary suspect is always a board mismatch introduced during a prior repair or parts substitution.

Source: manufacturer service documentation.

Common causes of E97

  1. 01

    Incorrect Cycle Selector Board installed

    Part replacement

    If the Cycle Selector Board was previously replaced with a part intended for a different model or variant, its selector recognition data will not match the programme configuration stored on the Electronic Control Board. Verify the board part number matches the dryer's model specifications exactly.

  2. 02

    Incorrect Electronic Control Board installed

    Part replacement

    An ECB with a different firmware version or hardware revision will carry a programme table that does not align with the installed Cycle Selector Board. This mismatch directly causes the CTF error and requires replacing the ECB with the correct compatible unit.

  3. 03

    Incorrect User Interface Board installed

    Part replacement

    The User Interface Board also carries configuration data that must be consistent with the other boards. An incompatible UI board installed during a prior repair can contribute to the programme discrepancy flagged by E97.

  4. 04

    Mixed board set from different model variants

    Part replacement

    In some cases, a combination of boards sourced from different dryer variants or regional configurations are installed together. Even if each board is functional on its own, the collective mismatch across all three boards will trigger E97.

  5. 05

    Communication wiring fault between boards

    Wiring / connection

    A damaged or poorly seated connector between the Cycle Selector Board and the ECB can cause the selector recognition data to be corrupted or missing, which the control system interprets as a programme configuration error. Inspect all inter-board harness connectors for damage, corrosion, or loose seating.

See the test procedure for each cause

Frequently asked questions about E97

What does E97 mean on a Electrolux dryer?
E97 indicates a CTF error, meaning there is a discrepancy between the programme configuration data on the Electronic Control Board and the selector recognition data from the Cycle Selector Board. The dryer's control system requires the Cycle Selector Board, User Interface Board, and Electronic Control Board to all be compatible with one another. This error most commonly appears after a board replacement where an incorrect part was used. The dryer will not operate normally until the mismatch is resolved.
Can I fix the E97 error myself?
Resolving E97 requires identifying which of the three control boards, the Cycle Selector Board, User Interface Board, or Electronic Control Board, is incorrect for your model and replacing it with the right part. This involves cross-referencing part numbers against your specific dryer model, which can be done by a knowledgeable DIYer but requires careful research. If any boards were recently replaced by a technician, start by verifying the part numbers used. If no prior repair was done, a professional diagnostic is recommended.
Is it safe to use my Electrolux dryer when E97 is displayed?
When E97 is active, the dryer typically will not run normally because the control system cannot validate the cycle programme configuration. Attempting to force operation is not recommended, as the control boards cannot reliably coordinate cycle execution. The dryer should be left out of service until the board compatibility issue is diagnosed and corrected.
Will resetting the dryer clear the E97 error code?
A simple power reset will not permanently clear E97 because the error is caused by an underlying hardware incompatibility between the installed boards, not a temporary software glitch. The fault will return as soon as the control system checks the programme configuration against the selector data. The only way to resolve it is to ensure all three boards are the correct, compatible parts for the dryer model.
How much does it cost to repair an E97 error on an Electrolux dryer?
Repair costs depend on which board or boards need to be replaced. Individual control boards for Electrolux dryers typically range from around 50 to 250 dollars per part, depending on the specific component and supplier. Adding professional labor, total repair costs generally fall in the range of 150 to 450 dollars. Getting a diagnosis first to confirm exactly which board is incorrect can help avoid purchasing unnecessary parts.

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