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Error code reference

Miele Washer Error Code F4260

EFU fault excess drive motor current; peak motor current at M5 >38A for time t >1.5s.

Miele codesMiele washer codes

EFU fault excess drive motor current; peak motor current at M5 >38A for time t >1.5s.

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What F4260 means on a Miele washer

Error code F4260 on a Miele washer indicates an EFU (Electronic Frequency Unit) fault caused by excess drive motor current at motor M5. Specifically, the control system has detected that peak motor current has exceeded 38 amperes for a sustained period greater than 1.5 seconds. This threshold is a protective cutoff designed to prevent thermal and electrical damage to the drive motor, motor control electronics, and associated wiring. The EFU monitors motor current continuously during operation, and when this overcurrent condition persists beyond the defined time window, the machine halts and stores the fault code.

The drive motor M5 is the main drum motor responsible for rotating the wash drum during all cycle phases. Overcurrent conditions at this motor typically arise from one of two broad categories: a mechanical load problem or an electrical/component failure. Mechanical causes include a seized drum bearing, a worn or locked motor shaft, a foreign object jamming the drum, or a drive system component such as a belt or pulley creating excessive resistance. Electrical causes include a short circuit within the motor windings, degraded motor brushes (if applicable to the motor type), or a failing motor control board that is delivering incorrect voltage or current waveforms to the motor.

Diagnosing F4260 requires checking the drum for free manual rotation, inspecting the motor and its wiring harness for signs of heat damage or shorts, and measuring motor winding resistance to identify internal motor faults. The motor control electronics should also be evaluated, as a defective control board can drive excessive current even into an otherwise healthy motor. This fault should not be ignored, as continued operation under overcurrent conditions can cause permanent motor failure or create a fire risk.

Source: manufacturer service documentation.

Common causes of F4260

  1. 01

    Seized or worn drum bearings

    Part replacement

    Failed drum bearings create extreme mechanical resistance, forcing the motor to draw excessive current to turn the drum. Try rotating the drum by hand with the machine unplugged. Heavy resistance or grinding indicates bearing failure.

  2. 02

    Foreign object jamming the drum

    Wiring / connection

    Coins, bra underwires, or other items can become lodged between the drum and the tub, causing a sudden mechanical lock that spikes motor current. Inspect the drum interior and the gap between the drum and tub seal.

  3. 03

    Drive motor M5 internal fault

    Part replacement

    A short circuit in the motor windings or severely worn motor components can cause the motor itself to draw current above the 38A threshold. Motor winding resistance measurements will reveal an internal short or open circuit.

  4. 04

    Faulty motor control board or EFU

    Part replacement

    A defective motor control board can deliver incorrect current or voltage to motor M5, triggering an overcurrent condition even when the motor and mechanical load are normal. This requires evaluation of the control electronics.

  5. 05

    Damaged motor wiring harness

    Part replacement

    Chafed, pinched, or partially shorted wiring between the control board and motor M5 can cause abnormal current flow detected by the EFU. Inspect the full length of the motor wiring harness for visible damage or heat discoloration.

See the test procedure for each cause

Frequently asked questions about F4260

What does F4260 mean on a Miele washer?
F4260 indicates an EFU fault caused by excess current in the drive motor M5. The control system detected that peak motor current exceeded 38 amperes for more than 1.5 seconds, which triggered a protective shutdown. This protects the motor and electronics from damage caused by a sustained overcurrent condition. The root cause is typically a mechanical jam, bearing failure, motor fault, or a problem with the motor control electronics.
Can I fix F4260 myself on a Miele washer?
Some basic checks are possible without special tools, such as unplugging the machine and manually rotating the drum to check for physical obstructions or heavy bearing resistance. Removing a visible foreign object from the drum may resolve the fault. However, diagnosing motor winding resistance, inspecting internal drive components, or replacing the motor or control board requires technical experience and the correct tools, so professional service is recommended for most situations.
Is it safe to keep using my Miele washer when F4260 is displayed?
No, you should not continue operating the washer while F4260 is active. Sustained overcurrent conditions at the drive motor can cause permanent motor failure, damage the motor control electronics, and in serious cases create a risk of overheating. Keep the machine powered off until the fault has been properly diagnosed and resolved.
Will resetting my Miele washer clear the F4260 error?
A reset may clear the fault code temporarily, but if the underlying cause of the overcurrent condition is still present, the error will return quickly, often within the same wash cycle. Simply resetting the machine without fixing the root cause can accelerate damage to the motor and associated components. The fault should be fully diagnosed before returning the machine to regular use.
How much does it cost to repair a Miele washer with error code F4260?
Repair costs vary depending on the specific cause. If a foreign object is simply jamming the drum, a service call fee may be the only expense. Drum bearing replacement on a Miele washer typically falls in the range of $250 to $500 or more including labor. Drive motor replacement can range from $300 to $700 depending on parts and labor. Motor control board replacement is often in a similar range. Getting a diagnostic assessment from a qualified Miele technician before committing to repairs is advisable.

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