Bosch Dishwasher Error Code D

Error code D on a Bosch dishwasher means the main control board has lost BUS communication with the SIBRUSYM circulation pump motor. The SIBRUSYM is a brushless DC motor that communicates digitally with the control board during operation. When that communication link is broken, the dishwasher halts the cycle and displays this code. The cause is typically a wiring fault or a failed motor.

No, you should not attempt to run the dishwasher while error code D is active. The control board cannot confirm whether the circulation motor is operating correctly, meaning the appliance may not wash or drain properly. Continuing to force cycles could also mask a wiring fault that may worsen over time.

Repair costs vary depending on the root cause. If only a connector needs reseating or a short wiring repair is required, costs may be minimal beyond a service call fee, typically in the range of $75 to $150. If the SIBRUSYM motor needs to be replaced, parts and labor combined can range from $200 to $450 or more depending on the specific model and local labor rates.

If you are comfortable working with appliance wiring, you can start by inspecting and reseating the connectors between the control board and the circulation motor. Check for visible wire damage or corrosion at the terminals. However, if the motor itself has failed, replacement requires disassembling the lower portion of the dishwasher and is best handled by a qualified technician.

A reset may temporarily clear the error code display, but the code will return as soon as the control board attempts to communicate with the SIBRUSYM motor and fails again. The underlying cause, whether a loose connector, damaged wiring, or a faulty motor, must be identified and corrected for the error to stay cleared.