Miele Washer Error Code F4106

F4106 is a checksum fault related to the monitoring program allocation list stored within the washer's main control unit. A checksum is a calculated value used to verify the integrity of data stored in memory. When the control unit reads the program allocation list, it recalculates the checksum and compares it against the stored reference value. If these two values do not match, the control flags a F4106 fault, indicating that the stored data has become corrupted or cannot be verified as accurate.

The monitoring program allocation list is a critical data structure that the control unit uses to coordinate and supervise wash cycle operations. Corruption of this list can occur due to power surges, voltage irregularities during a cycle, or degradation of the non-volatile memory (EEPROM or flash memory) chips on the control board. A failed or intermittently failing control board is the most direct hardware cause of this fault, as the memory components responsible for storing the allocation list are integrated into the control unit itself.

Because the fault originates inside the control unit's memory architecture, external components such as sensors or wiring harnesses are generally not the root cause. Clearing the fault with a power cycle may temporarily reset the error, but if the underlying memory integrity issue persists, the fault will return. Resolving F4106 typically requires inspection and likely replacement of the main control unit.