Bosch Washer Error Code dr:02

The dr:02 code means the washer has detected a motor control interruption, indicating a fault in the motor control unit (MCU). The MCU regulates how the drive motor operates during each cycle, and when communication or function is disrupted, the machine stops and displays this code. It is a hardware-level fault that requires diagnostic testing using test program P4. In most cases, the motor control unit will need to be replaced.

A power reset may temporarily clear the code, but it will return as soon as the washer attempts a cycle phase that requires motor control. The dr:02 fault reflects a hardware issue that a reset cannot resolve. Permanent correction requires diagnosing and repairing or replacing the faulty motor control unit.

Repair costs vary depending on whether the fix involves a wiring correction or a full MCU replacement. If only a connector or harness repair is needed, costs are generally lower, typically in the range of $75 to $150 for a service call. If the motor control unit itself requires replacement, parts and labor combined can range from $200 to $450 or more depending on the specific model and local labor rates.

A knowledgeable DIYer can start by inspecting the wiring harness and connectors leading to the motor control unit for any loose, corroded, or damaged connections. However, running the required P4 diagnostic test and safely replacing the MCU typically requires familiarity with appliance electronics and disassembly procedures. If you are not comfortable working with internal electronic components, a qualified technician is recommended.

No, you should not continue using the washer with an active dr:02 fault. The motor control interruption means the machine cannot reliably manage drum operation, which could result in incomplete cycles or further damage to components. The washer should remain out of service until the fault is diagnosed and repaired.