Bosch Washer Error Code dr:03

The dr:03 code indicates a damaged or faulty temperature sensor within the motor control system of your Bosch washer. The sensor is responsible for monitoring heat levels in the motor control electronics. When this sensor produces readings outside acceptable limits or fails entirely, the washer logs dr:03 and may stop operating to protect its components.

It is not advisable to continue using the washer while dr:03 is active. The temperature sensor is there to protect the motor control electronics from overheating, and operating the machine without a functioning sensor could allow undetected heat buildup that damages the control board or other components. Resolving the fault before resuming use is the safer approach.

Repair costs vary depending on whether the fault is in the wiring, the sensor, or the full motor control unit. A wiring repair or sensor-only replacement is generally less expensive, typically in the range of $100 to $250 including labor. If the entire motor control board requires replacement, costs can range from $250 to $500 or more depending on parts availability and local labor rates.

The recommended first step is to run diagnostic test program P4, which helps isolate whether the fault is in the temperature sensor, the wiring harness, or the motor control board itself. Inspect all connectors and wiring leading to the sensor for damage or corrosion. If the wiring is intact and P4 confirms a sensor fault, the temperature sensor or motor control unit will need to be replaced.

A power reset may temporarily clear the error from the display, but the code will return if the underlying sensor fault has not been repaired. Because the cause is a hardware failure rather than a transient software glitch, the sensor or related wiring needs to be inspected and corrected for the error to stay resolved.