Fault: Filter is blocked. An E22 error code indicates that the dishwasher filter is blocked. The filter is the area where food particles get caught and it needs to be cleaned regularly. Remove the filter to make sure it is not clogged. Review your owner’s manual to learn how to remove the filter, which is located at the bottom of your dishwasher. Once it’s removed, you will need to clean the filter. Wash it under running water with mild soap and a soft brush to remove debris then reinstall.
For Bosch freestanding, under bench, semi-integrated and fully-integrated dishwashers (including Serie 2, Serie 4, Serie 6, Serie 8).