How to act if error E04 appears on the Bosch dishwasher’s display? It is necessary to understand the meaning of the code – it says that for some reason (for example, because of a clog) the flow sensor has failed.
What does the error mean?
The dishwasher can display error E 04 when the water flow sensor breaks down and if the sprayers fail. Due to clogging or hardness of water, water jets do not pass through the holes of the sprinkler well enough, which leads to the malfunction.
Water does not go in well, but such situation is not critical, so you can try to eliminate the damage yourself.
What should we do? You need to clean the sprinkler:
- Remove the spray arm from the seat.
- Rinse it under running water.
- Clean the nozzles (holes) with a toothpick.
Use a special salt for dishwashers. It enables to reduce the hardness of water and prevents the formation of calcareous deposits on the parts.
The parts are cleaned, but the error code appeared again? In this case, you will need to replace the flow sensor. It is designed to control the amount of water that passes through the nozzles. The part is installed in some models of Bosch dishwashers instead of the usual pressure switch. The stop signal is sent to the control module from the sensor and it instructs the machine to stop the water intake.