Bosch Washer Error Code Er:10

Er:10 indicates that the flow meter is sending incorrect or no signal to the washer's control board. The flow meter is a pulse-generating sensor that tracks how much water enters the drum during a fill cycle. This error points to either a defective flow meter or a problem with the wire harness connecting it to the control board.

It is not recommended to continue running the washer with this error active. Because the flow meter controls water measurement, a faulty reading could cause the machine to overfill or behave unpredictably during fill cycles. Stop using the washer until the fault is diagnosed and resolved.

Repair costs vary depending on the failed component. If only the wire harness needs repair or a connector needs reseating, costs may be minimal, primarily covering labor time. A replacement flow meter part typically ranges from $20 to $80 depending on the model, while a main control board replacement is significantly more expensive, often between $150 and $350 for parts alone, plus labor if a technician is used.

A knowledgeable DIYer can inspect the wire harness for visible damage, check connectors for corrosion, and clean a debris-clogged flow meter without professional help. However, running the P11 diagnostic test and accurately interpreting sensor output typically requires familiarity with appliance service modes. If parts need to be replaced, a technician can ensure the correct component is identified before purchasing.

A reset may temporarily clear the error code from the display, but it will not resolve the underlying hardware fault. If the flow meter or wiring is defective, the error will return as soon as the washer attempts a fill cycle and the control board detects invalid sensor data again. A proper diagnostic using test P11 is needed to identify and fix the root cause.