April 19, 2023

Bosch dishwasher error codes

Bosch

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. Search for your model number to find a complete list of replacement parts for your dishwasher.

Error Code
Condition
DIY advice
E0

No fault codes are recorded

Check/Repair

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.

Possible parts
E1

Heating problem

Check/Repair

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.

Possible parts
Heater, Flow switch
E2

Temperature sensor defective

Check/Repair

A service technician usually needs to diagnose and repair a temperature sensor problem because accessing the sensor requires removing the dishwasher tub.

Possible parts
Temperature sensor (also called negative temperature coefficient, or NTC)
E3

Not filling

Check/Repair

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.

Possible parts
Water inlet valve
E4

Water switch defective

Check/Repair

A service technician usually needs to diagnose and repair a water switch problem because accessing the sensor requires removing the dishwasher tub.

Possible parts
Water switch
E5

Overfilled

Check/Repair

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.

How-to help
Possible parts
Water inlet valve assembly
E6

Aqua sensor defective

Check/Repair

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.

Possible parts
Aqua sensor

Most common symptoms to help you fix your dishwashers

Choose a symptom to see related dishwasher repairs.

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