ASKO Washer Error Code Wash motor fault

This fault means the washer's motor control unit is not receiving a valid speed signal from the wash motor's tachometer, or the MCU itself is not producing an output signal to the motor. The machine cannot confirm the motor is operating correctly and shuts down to prevent damage. Diagnosis focuses on the wiring between the motor and MCU, the tacho generator, and the MCU itself.

No, you should not continue operating the washer while this fault is active. The machine has stopped as a protective measure because it cannot confirm the motor is running correctly. Running the washer without resolving the fault could potentially cause further damage to the motor or control electronics.

A reset may clear the fault code temporarily, but if the underlying problem with the tacho signal or MCU output is still present, the fault will return as soon as the machine attempts to run the wash motor again. Resetting is a reasonable first step to check whether the fault was a one-time glitch, but persistent errors require hands-on diagnosis of the wiring and components.

Basic steps like checking for loose connectors or visually inspecting the wiring harness for obvious damage are within reach for a confident DIYer. However, testing the MCU output signal and evaluating the tacho generator requires a multimeter and some familiarity with reading wiring diagrams. If the MCU or motor needs replacement, a qualified technician is recommended to ensure correct component installation.

Repair costs vary depending on the failed component. Wiring repairs or connector replacement are typically on the lower end, ranging from around $75 to $200 including labor. A replacement tacho generator or motor can push costs to $200 to $500 or more, and an MCU replacement can range from $300 to $600 or higher depending on parts availability and labor rates in your area.