If your Siemens dishwasher has stopped and displayed a fault code on the display, do not panic. So the self-diagnosis system reports a possible breakdown. The value of the code will help you determine the exact reason for stopping the PMM.
Below in the table we have presented all the errors of Siemens dishwashers. You will learn their decryption, and you can also fix the problem yourself.
Error codes may appear due to serious damage to the dishwasher, or they may be due to a failure in the system. It’s easy to fix, just reboot the machine.
If the code is reset, then nothing serious has happened, you can continue to work in the usual mode. But if the error is highlighted again, then you will have to understand its causes.
Sometimes even minor problems can cause the dishwasher to stop. Therefore, before calling the master, understand the reasons: you may carry out repairs yourself.
1. The heating element does not function.
2. The control triac on the electronic board burned out.
3. Defective thermostat.
4. Incorrect operation of the pressure switch.
1. Check heater. To do this, the contacts of the heating element are called by a multimeter.
2. Diagnose the control board. Repair or replace the element.
3. Inspect the temperature sensor. Install a new part in case of failure.
5. Replacing the pressure switch.
E2 The NTC thermistor is not working. The thermistor located inside the heater is defective. Inspect and replace the thermal sensor. E3 There is not enough water in the Siemens PMM tank.
Why did it crash:
1. The filling system is clogged: hose, filter, valve.
2. The inlet valve is broken.
3. The drain pump does not pump out water. Maybe it’s blocked.
4. Breakdown of the pressure switch.
How to do the repair yourself:
1. Check and remove blockage in the inlet hose. Disconnect it from the housing and pull out the filter mesh. Clean the debris filter.
2. Diagnosis of the inlet valve.
3. Inspection of the pump impeller. Elimination of foreign elements.
4. Change of pressure switch.
E4 Flow switch defective.
What caused the crash:
1. The switch is clogged and therefore cannot direct the flow.
2. The motor driving the switch is not working.
How to fix the situation:
1. Inspect switch and remove blockage.
2. Repair or replacement of the Siemens dishwasher engine.
E5 Too much water in the tank.
What happened:
1. Incorrect data from the pressure switch.
2. The pressure switch tube is clogged.
3. Problems with the inlet valve.
1-2. Inspection of the pressure switch, cleaning the tube or installing a new tube.
3. Diagnosis of the intake valve. Its coils are checked with a multimeter. In case of problems, you need to install a new element.
E6 Turbidity sensor has failed. A sensor monitors how soiled the dishes are to save on extra rinsing. A serviceable part is required to continue washing in the Siemens PMM. E7 PMM drying does not work. The fan that is responsible for drying the dishes is not working. Fan diagnostics and repair are needed to resume the drying process. E8 Not enough water in the tank to start the heater. Due to the low pressure in the system, the circulation pump cannot properly drive water. The heater does not turn on. Perhaps the pressure switch has failed. Wait until normal pressure resumes. Install a new pressure switch. E9 Problems in the operation of the flow heater.
Why does the heating element fail:
1. As a result of a short circuit, the contacts of the heating element broke.
2. The heater itself burned out.
What you can do:
1. Inspect the heating element wiring. Replace burnt items.
2. Ring the contacts of the heating element to check the operability.
E10 The machine runs without heating. Drying integrity is compromised. The problem requires contacting a service center. E11 The dishwasher does not start the cycle without heating.
What happened:
1. Thermostat defective.
2. Sensor wiring is broken.
3. There were problems in the operation of the control module.
Self-repair:
1. Installing a working thermostat.
2. Wiring repair.
3. Diagnostics of the electronic module.
E13 Water temperature too high when entering the system. It is possible that the temperature exceeds the norm if the equipment is connected to hot water. Otherwise, the thermistor will not function.
How to proceed:
1. Check connection.
2. Install serviceable parts.
E14 Incorrect data from the flow sensor. Despite the fact that the operating pulses are sent to the circulation pump, the sensor does not see them. Parts need to be checked and replaced. E15 Aquastop leak protection has tripped. There is a leak in the dishwasher. The float floated up, signaling a leak.
It is necessary to find the place of the leak and block the leak. What to see:
1. Tank PMM.
2. The tightness of the inlet and drain hoses, as well as their connections.
4. Bunker door seals.
E16 Spontaneous set of water in the tank.
1. Mechanical failure of the inlet valve causes the diaphragm to not close.
Therefore, the flow does not stop.
2. The level sensor gives incorrect readings.
3. Foam level exceeded.
1. Install a working filling valve.
2. Change the level sensor.
3. Remove excess foam. Use a different detergent or use a smaller amount.
E17 Malfunctions when filling water. The flow control device is out of order, or there is a problem with the water pressure.
1. The sensor needs to be replaced.
2. Check pressure, wait until normal supply resumes.
E18 What does the code mean: do not turn off the machine from the network. The code tells the user that the cycle will end after draining, so there is no need to unplug the dishwasher. E21 Drain pump malfunction.
1. Blockage in the pump impeller.
2. Damage to the drain pump.
How to proceed:
1. To clear the blockage of the dishwasher, empty the hopper from the trays, pull out the filter. Open the pump cover and remove anything that interferes with normal operation.
2. Ring the pump contacts with a multimeter. Replace if defective.
E22 Error value: there is no contact between the pump and the main module.
What caused:
1. Failure in the electronic module of the dishwasher.
2. Broken wiring or contacts between the board and the pump.
3. The pump itself does not work.
1. Diagnostics of the control board.
2. Inspect contacts for damage. Repair.
3. Checking the pump.
E23 The drain pump is broken. As a result of a short circuit, the pump winding broke. It is recommended to contact the service center. E24 There is no drain in the Siemens dishwasher. The drain hose is clogged, bent, pinched. Restore the normal position of the hose. Carry out cleaning from blockage with special means. E27 Insufficient voltage for normal operation of the dishwasher. Install a stabilizer for the safe operation of the dishwasher. P0 Factory function test on assembly
These are the main causes of malfunctions in Siemens dishwashers. In order for them to serve for a long time, carry out preventive measures against blockages, clean the dishes from food residues with high quality. No less important is the correct installation of the dishwasher, the protection of its electronic part from power surges.