The dr:01 Code on a Bosch Washer: Inverter Power Switch Shorted

What dr:01 means

Vision front-loaders have a second set of codes starting with dr, and they come from the inverter that runs the motor instead of the main control. For dr:01, a power switch inside the inverter, an IGBT, has failed in the shorted state. Bosch attributes it to damage in the inverter's control section and prescribes a new inverter.

Common causes of dr:01

IGBT switching device in the inverter shorted
Damage in the inverter's control section
Motor trouble that took the inverter output stage with it

✓ One safe check you can try

1. Turn the washer off at the breaker. 2. Leave it off and do not reset it repeatedly. 3. If a breaker tripped when the code appeared, tell us. Bosch's answer for this code is a new inverter, not a repair, and a shorted switch is not something to probe.

! Why to stop there

A shorted power stage can draw heavy current, which can overheat wiring or trip the breaker.
The inverter is one of the costlier parts in the machine, so confirming the diagnosis first matters.
Repeated restarts can damage the motor on the other side of the failed device.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Washer codes

dr:19Bosch Washer dr:19 Shows That the Motor Phases Don't Match dr:20Bosch Washer dr:20 Signals a Shorted Inverter Output Stage dr:21Sustained High Voltage and Bosch Washer dr:21 dr:22Bosch Washer dr:22 Reports Failure of the Inverter's Own Temperature Sensor dr:15Bosch Washer dr:15 Gives an Early Warning From the Power Limiter Er:21Bosch Washer Er:21 Reports Too Much Foam Er:22Er:22 on a Bosch Washer That Can't Lock On to the Power Supply Er:24Bosch Washer Er:24 Names the Relay That Feeds the Motor Drive

dr:01dr:01 questions

Is the motor ruined if dr:01 appears?

Not necessarily. The failed device is in the inverter. We test the motor windings separately so you do not replace parts that are still good.

Why does Bosch say replace instead of repair?

The inverter is a sealed module with switching devices that are not serviced separately. Replacing the module is the documented fix for this code. Spare parts for it are sold as complete units.

Can I keep using the washer on a different cycle?

No. The inverter drives every motor movement, including tumbling and spinning, so the machine cannot operate normally while this code is active. Leave it switched off until a technician has checked the inverter and the motor.