Siemens dishwasher error codes

The self-diagnosis system of Siemens dishwasher assumes that the device stops when a malfunction occurs. Along with this, the error code appears on the display. But do not panic! You should understand the code meaning. Perhaps, you will fix the malfunction by yourself.

Siemens dishwasher error codes

Specialists divide all the error codes of Siemens dishwashers into two groups. The first one includes the mistakes that a user can solve at home, without the help of specialists. As a rule, these faults refer to water draining and gaining.

Water draining and gaining problems


E3 is the error code informing that water doesn’t reach a certain level in the time, established by the program. In such situation, old devices of this brand stop. Water is gained until it reaches a certain level. In newer dishwasher models, water can drain. The reasons for this problem are as follows:

  • Aquastop system failure;
  • rain pump does not work;
  • liquid valve damage;
  • water level sensor does not operate;
  • there is a clog in the filter on the water supply.

The first thing to check is the filter, located behind the filling hose at the entrance to the dishwasher and intake valve. Then check the Aquastop hose, and replace it if necessary. The pressostat and the pump break in the rarest cases, and its replacement requires certain skills.


E5 is the error code that occurs in case of the water overflowing. In this situation, the cause is a blockage in the water sensor tube or the sensor breakdown. In addition, water can enter the dishwasher without interruption if the water supply valve is jammed in the open position. The only solution is to replace the valve.


E8 is the error code indicating a small amount of collected water. At the same time, the dishwasher’s heating element doesn’t receive a signal to turn on. In addition, the circulation pump can not “run out” water due to the reduced pressure. As a result, the washing process doesn’t start. A common failure is the low pressure of water filling. Perhaps there is a failure in the pressure switch work.


E15 is the error code, shown when the Aquastop protection system triggers. Most likely, water has got into the device tray. To eliminate the E15 error, you need to drain water and find a leakage place. For example, a leaking connection of hoses and nozzles. Sometimes the Aquastop float gets stuck. In order to fix it, you need to tilt the dishwasher, and then the e15 error will disappear.


E16 error code appears on the screen during spontaneously water gaining. The reasons for this include:

  • increased foaming due to an overdose of detergent or its use for not on purpose;
  • malfunction of the pressure switch or the priming valve.


E17 is the error that occurs when water is collected in the dishwasher reservoir. This error code informs about the water flow sensor incorrect operation. The water pressure is exceeded. First of all, check the water pressure in the tap, and change the flow sensor if necessary.


E21 is the fault code for a dishwasher. The drain pump of the dishwasher is blocked, water doesn’t drain. It relates to the pump clogging or its wear and tear.

For your information! Some Siemens dishwashers models show the E22, sometimes intermittent with the E24 error. In 80% of cases, the E22 relates to the filter clog. The filter is located at the cleaning chamber bottom. It very rarely appears along with pump failure.


E24 is the error code informing that there is no water draining. This can happen for one of the next reasons:

  • drain hose benting;
  • drainage filter or drain hose clogging;
  • sewerage obstruction.

Error codes related to water heating and sensors

Some Siemens dishwashers error codes inform about more complex malfunctions.


E1 is the error code that occurs during water overheating. In most cases, the cause is a malfunction of the heating element. Also, the triac thermistor on the control module may fail. The least frequent error of water heating occurs when the pressure switch or the priming valve fails.


E2 fault signals that the temperature sensor (NTC sensor) does not work. In Siemens dishwashers, this sensor is located inside the fan. It is not so difficult to replace this part if you know how to disassemble the dishwasher.


E4 is the error code informing about the malfunction of the stream switch. You can find this switch under the heating element. Its task is to distribute water to the rocker arms. The cause of the error is switch clogging or a motor failure. The last one controls the operation of the switch.


E6 is the error code of turbidity sensor failure (Aquasensor). Aquasensor controls the turbidity of water during the first rinse of dishes. Due to this sensor, the number of rinsing cycles can be reduced. You can find it next to the heating element.


E9 is the fault code of the heating element. This error is typical for the dishwashers with a flowing heating element. Using a multimeter, check the node. If necessary, replace the heating element with a new one.


E11 is the error code that occurs when the dishwasher operates without water. This indicates that you need to check the thermal sensor, wiring, or an electronic board.


E14 is the error code connected with the incorrect operation of the water flow sensor. The dishwasher can function with this fault. In this case, the dishwasher requires professional diagnostics.


The E18 error code is the only one that does not require any action. On the contrary, you have to wait until the dishwasher completes the work. With that, do not turn off the power supply.


E27 is the error code informing the user about the voltage drop in the electrical network. Most often, this error occurs during the network overloading in the evening. In this situation, you need to check the voltage in the network. Also, consider installing the voltage regulator to guarantee uninterrupted operation. Actually, it can save the appliance from repair.

So, there are not so many codes for faults in Siemens dishwasher. The reasons for some of them are similar. Therefore it is necessary to be attentive at revealing the malfunction. If you have some difficulties, address to an expert.

Author: David Hoover