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Error code reference

Miele Washer Error Code F4163

Maintenance interval for accident prevention legislation testing exceeded (1 year interval).

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Maintenance interval for accident prevention legislation testing exceeded (1 year interval).

First step from the service manual

Perform testing and reset counter in service mode.

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

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What F4163 means on a Miele washer

F4163 is a maintenance interval notification code on Miele washers. It indicates that the legally mandated inspection interval for accident prevention legislation testing, known in European markets as DGUV (Deutsche Gesetzliche Unfallversicherung) or VDE testing, has exceeded its required 12-month cycle. This type of testing verifies the electrical safety of the appliance, including insulation resistance, protective earth continuity, and leakage current values, to confirm the machine remains safe for continued operation.

The code is generated by an internal timer or counter within the washer's control board that tracks the elapsed time since the last compliant safety inspection was logged. Once the 12-month window expires without a documented reset, the machine triggers F4163 to alert technicians and operators that testing is overdue. This is particularly relevant for commercial or semi-commercial installations where appliance electrical safety documentation is a regulatory requirement.

Clearing this code requires access to the Miele service mode, where a qualified technician can perform the necessary electrical safety tests and then reset the internal maintenance counter. Simply cycling power to the unit will not clear F4163. The counter reset must be completed through the proper service menu sequence following successful completion of the required inspection procedures.

Source: manufacturer service documentation.

Common causes of F4163

  1. 01

    Elapsed 12-month inspection interval

    Wiring / connection

    The most common trigger is simply that 12 months have passed since the last accident prevention legislation test was performed and logged. The internal counter reaches its limit and activates the code automatically.

  2. 02

    Counter not reset after previous inspection

    Wiring / connection

    A safety inspection may have been physically completed but the technician did not reset the maintenance counter in service mode, leaving the timer to continue running until it triggers the fault.

  3. 03

    Control board replaced without counter reset

    Wiring / connection

    If the main control board was replaced during a prior repair, the maintenance interval counter may have been initialized incorrectly or the reset procedure was skipped during commissioning.

  4. 04

    Machine relocated or ownership transferred

    Wiring / connection

    When a machine is moved to a new facility or changes ownership, the inspection history may not transfer with it, and the existing counter may already be near or past its limit without the new operator being aware.

See the test procedure for each cause

Frequently asked questions about F4163

What does F4163 mean on a Miele washer?
F4163 means the washer's internal maintenance counter has detected that the required annual electrical safety inspection under accident prevention legislation has not been completed within the 12-month interval. This is a compliance reminder code, not a component failure. It requires a qualified technician to perform the inspection and reset the counter through the Miele service mode.
Can I reset F4163 myself without performing a safety test?
No, F4163 cannot be cleared by simply unplugging the machine or cycling the power. The reset must be performed through the service mode menu and should only follow successful completion of the required electrical safety inspection. Resetting without conducting the actual test would bypass a legally required safety check.
Is it safe to keep using my Miele washer while F4163 is displayed?
F4163 does not indicate an active electrical fault or imminent component failure, so the machine may continue to operate. However, the code signals that a required safety inspection is overdue, meaning the machine's electrical safety has not been formally verified within the required timeframe. Scheduling service promptly is strongly recommended, especially in commercial settings where regulatory compliance is a documented requirement.
How much does it cost to fix the F4163 error on a Miele washer?
Because F4163 requires only an inspection and a counter reset rather than parts replacement, the cost is primarily a service call and labor fee. Depending on your location and the technician, expect to pay somewhere in the range of $100 to $250 for the visit, testing, and reset procedure. No replacement parts are typically needed unless the inspection uncovers an underlying electrical issue.
Will clearing the counter in service mode permanently fix F4163?
Yes, resetting the maintenance counter through the service mode will clear the code and restart the 12-month interval timer. The code will not return until the next annual inspection period has elapsed. To avoid the code reappearing, ensure a qualified technician performs and logs the required electrical safety test each year and completes the counter reset at that time.

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