Bosch  Dishwasher  Error Codes

These error code explanations can help you diagnose a problem with your Bosch dishwasher. For repair how-to help, visit the PartsDirect repair help section, which includes repair help for dishwashers, other major appliances, lawn and garden equipment, garage door openers, vacuum cleaners and more. You can also search for owner’s manuals and find dishwasher replacement parts.

Check out our dishwasher error code charts for information on a different brand of dishwasher.

Error Code Condition Check/Repair Shop Parts
E0 No fault codes are recorded No component problems were detected. When you enter the diagnostic test mode and retrieve saved fault codes from the control memory, this E0 code is displayed when no fault code is recorded.
E1 Heating problem Check the water fill level. If water level is too low, the heater won’t turn on. If the water level is okay, the flow switch or the heater could be defective. A service technician usually needs to diagnose and repair a heating failure because accessing the heater requires removing the dishwasher tub.
Heater, Flow switch
E2 Temperature sensor defective A service technician usually needs to diagnose and repair a temperature sensor problem because accessing the sensor requires removing the dishwasher tub.
Temperature sensor (also called negative temperature coefficient, or NTC)
E3 Not filling If the water supply cut-off valve for the dishwasher is fully open and the dishwasher still won’t fill, shut off the water supply, unplug the dishwasher, disconnect the fill line and check whether the screen in the water inlet valve is clogged. If it’s clogged, replace the water valve—don’t just clean the screen, because debris could fall into the valve body, prevent the valve from closing, and cause flooding. If the dishwasher still won’t fill, have a service technician diagnose and repair the dishwasher.
See the repair guide to fix it yourself
Water inlet valve
E4 Water switch defective A service technician usually needs to diagnose and repair a water switch problem because accessing the sensor requires removing the dishwasher tub.
Water switch
E5 Overfilled Unplug the dishwasher or shut off the house circuit breaker to disconnect electrical power. If the dishwasher continues to fill, replace the water inlet valve assembly.
See the repair guide to fix it yourself
Water inlet valve assembly
E6 Aqua sensor defective The aqua sensor detects how dirty the water in the dishwasher is. A service technician usually needs to diagnose and repair an aqua sensor problem because accessing the sensor requires removing the dishwasher tub.
Aqua sensor