Bosch Dishwasher Error Codes

A dishwasher today is not just a luxury item, but a household appliance necessary in any kitchen. In addition to performing their direct functions, these devices at the time of failure can independently diagnose the cause of the malfunction and send a signal to their owner through the display. Therefore, any user should be able to decrypt and understand the error codes of dishwashers.

Errors in problems with water heating

In this case, the following symbols may appear on the display, indicating the cause of the malfunction:

• E01 - most often signals a problem with the heater (heating element of the device). Specialists recommend checking the water flow sensor with this element, sometimes the reason is in it. Also, error E01 can signal a violation of the integrity of the contacts going to the heating element.
• E09 - a problem with a running heater. This code may not appear on all dishwashers, but only on those with a heating element in the circulation pump. When error E09 occurs, the masters usually check the heater for an open.

Errors in problems with discharge and filling of water

The most typical E21. An error that is displayed when the functions of the circulation or drain pump are disturbed. This can happen when:

• low pressure comes from the circulation pump;
• wear of the pump mechanism. In this case, a signal is received from the control unit to the drain pump, but the waste water is not pumped out;
• the impeller does not rotate; most likely, a foreign object became the cause.

Code E18 indicates a low water level. The reason is established in accordance with the stage of the cycle:

• if the error appeared at the beginning - it is necessary to check the sensor or the water supply valve;
• if at the end of the cycle there is no need to rush to turn off the program, perhaps the machine will merge water in time and complete the cycle correctly. See also - Heating elements in a Bosch dishwasher

Errors with clogging problems

If warnings about breakdowns associated with a heating element or a drain pump appear rather rarely, then error codes for Bosch dishwashers in the group under consideration are quite common, for example:

• E22 quite often appears alternately with the previously considered error E21. Also associated with the problem of pump malfunction. By issuing this code, the Bosch dishwasher indicates that the control module “does not see” the drain pump. This can be caused by a malfunction of the pump itself or the control unit. Also, the cause may be wiring in the device.
• E24 is the most common mistake for all dishwashers. The appearance of such a code on the display of the device most often indicates the appearance of blockage.Although many manufacturers in their instructions claim that E24 indicates a kink in the hose. But how could it have happened if the car was installed correctly and it was not moved from its place? As the practice of many dishwasher owners shows, E24 most often occurs when any part of the drainage system or filters becomes clogged. Therefore, the first step is to remove the filters and rinse them under running water. If this procedure does not give a positive result, it is worth considering other reasons why the E24 code may appear on the display:

1. The performance of one of the sensors is impaired. In this case, the master will have to figure out which one.
2. Drain pump malfunction.
3. Failed control program.

Although E24 most often indicates blockages, the statistics of specialists involved in the repair of dishwashers indicates that often the cause may be a breakdown of the component parts of the device.

• E25 - there is not enough drain pump power. Often appears alternately with E24, in cases where a blockage forms in the pipe or at the base of the drain hose. To fix the malfunction indicated by E25, it is usually sufficient to simply clean the pump nozzle or impellers.

Errors with problems with water sensors

For the proper operation of the dishwasher, water sensors are largely responsible. If their performance is interrupted, errors may appear:

• E4 - malfunction of the water flow switch that supplies water to the sprinkler. To eliminate the cause of E4, most often it is enough to clean the nozzles, which are clogged due to hard water;
• E15 - typical for devices with the additional Akvostop function. To eliminate the malfunction, it is necessary to establish the place of the water leak.

Errors with wiring problems

The most common E27. It indicates a reduced voltage in the mains. The E27 error is encountered by those owners of dishwashers who connected the device directly to the network. To fix the problem - you must install a voltage stabilizer. This not only ensures normal operation during the washing process, but also protects against power surges that can damage the control module of the device.

Any code indicates a particular malfunction, and if it is correctly decrypted, eliminating the source of the problem is often quite easy.