A dishwasher today is not just a luxury item, but an essential household appliance in any kitchen. In addition to performing their direct functions, at the time of a breakdown, these devices are able to independently diagnose the cause of the malfunction and send a signal to their owner through the display. Therefore, any user should be able to decipher and understand dishwasher error codes.
Errors in case of problems with water heating
In this case, the following symbols may appear on the device display, signaling the cause of the malfunction:
- E01 - most often signals a problem with the heating element (heating element of the device). Experts recommend checking the water flow sensor along 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 - problem with the flow heater. This code may not appear on all dishwashers, but only on those with a heating element in the circulation pump. When error E09 appears, the masters, as a rule, check the heating element for an open circuit.
Errors in case of problems with draining and filling water
The most typical E21. An error that is displayed when the functions of the circulation or drain pump are violated. This can happen when:
- low pressure comes from the circulation pump;
- wear of the pump mechanism. In this case, a signal is sent 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 has become the cause.
Code E18 indicates low water level. The cause is established according to the cycle stage:
- if the error appeared at the beginning, it is necessary to check the sensor or 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 drain the water after a while and correctly end the cycle.
See also - Heating elements in the Bosch dishwasher
Errors for blockage problems
If warnings about breakdowns associated with a heating element or a drain pump appear quite rarely, then error codes for Bosch dishwashers in the group in question 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 says that the control module "does not see" the drain pump. This can be caused both by a malfunction of the pump itself and the control unit. Also, the cause may be the 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 a 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 drain system or filters are clogged.Therefore, the first step is to remove the filters and rinse them under running water. If this procedure did not give a positive result, it is worth considering other reasons why the E24 code may appear on the display:
- The performance of one of the sensors is impaired. In this case, the master has to find out which one.
- Drain pump malfunction.
- Failed control program.
Although E24 most often indicates blockages, the statistics of specialists engaged in the repair of dishwashers indicate that often the reason may be in the 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. The fault indicated by E25 can usually be rectified by simply cleaning the pump nozzle or impellers.
Errors with problems with water sensors
Water sensors are responsible for the correct operation of the dishwasher. If their performance is broken, 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 that get 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 low voltage in the mains. The E27 error is encountered by those dishwasher owners who connected the appliance directly to the network. To fix the problem, you need to 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 you decode it correctly, it is often quite easy to eliminate the source of the problem.