Bosch Dishwasher Error Code dr:06

Error code dr:06 on a Bosch dishwasher signals an NTC thermistor and relay fault. The control board has detected that the NTC temperature sensor is reading an excessively high temperature, or the heating relay has failed in a stuck-closed position. The dishwasher stops operation to prevent potential overheating damage. Both the NTC sensor and the relay need to be tested to identify the faulty component.

No, you should not continue running the dishwasher while dr:06 is active. This code can indicate a relay stuck in the closed position, meaning the heating element may not shut off at the correct time. Continued operation under this condition risks overheating the appliance or damaging internal components.

A reset may temporarily clear the code, but if the underlying NTC thermistor or relay fault is still present, the code will return during the next wash cycle. A reset is not a fix. The root cause must be diagnosed and the faulty component repaired or replaced before the dishwasher will operate reliably.

Some parts of the diagnosis are approachable for experienced DIYers, such as checking wiring connections and inspecting the NTC thermistor circuit. However, testing and replacing the heating relay or NTC sensor requires basic electrical knowledge and a multimeter. Running Bosch test program P4 can help isolate the fault before any parts are ordered.

Repair costs depend on which component has failed. An NTC thermistor is generally an inexpensive part, with the repair typically ranging from $75 to $175 including labor. A heating relay or control board replacement will cost more, often falling in the $150 to $400 range depending on the specific board and local labor rates.