Bosch Dishwasher Error Code E:0106

E:0106 indicates that the dishwasher's control board has detected a ground fault in the water heater circuit. The machine disables the heater as a safety measure and continues running without it. This means wash water will not reach proper temperature, and drying performance will also be reduced. The heating pump assembly is the most likely component responsible for this fault.

The dishwasher is designed to disable the heater and continue operating when E:0106 is active, which reduces immediate risk. However, a ground fault in the heater circuit is an electrical issue that should be addressed promptly. Running the appliance in this state long-term is not recommended, and the underlying fault should be diagnosed and corrected as soon as possible.

A power reset may temporarily clear the error code from the display, but if the ground fault condition still exists in the heating pump or wiring, the code will return once the dishwasher runs a cycle and the control board detects the fault again. A reset does not repair the underlying electrical issue. The fault will persist until the defective component is repaired or replaced.

A technician or experienced DIYer can start by inspecting the wiring harness and connectors leading to the heating pump for visible damage or corrosion. If the wiring is intact, the heating pump assembly will need to be replaced. This repair involves working with the electrical and water systems of the appliance, so it is recommended only for those comfortable with appliance disassembly and basic electrical safety practices.

If only a wiring repair or connector replacement is needed, costs are typically lower, generally in the range of $50 to $150 including labor. If the heating pump assembly requires full replacement, parts and labor combined can range from $200 to $450 depending on the specific model and service rates in your area. Obtaining a diagnostic quote before authorizing repairs is advisable.