If your Siemens dishwasher is displaying the error code E04, it is indicating that there is an issue with the water-level sensor. These sensors regulate the flow of water that passes through the nozzles.
This error can also be caused due to the clogging of the nozzles, which results in opposing the flow of water.
Siemens Dishwasher Error Code E04
To fix error code E04 on your Siemens dishwashers, follow the below-mentioned steps:
Start by rebooting the dishwasher and run it after almost 10 minutes.
If this doesn’t fix the issue, then you need to locate the nozzles and clean them.
To clean the nozzles of your Siemens dishwasher, disassemble them first. Cleaning the nozzles with a toothpick is very effective.
Once you have cleaned the nozzles, connect them back and run the machine again.
Check Flow Sensor
If you are still getting the error after cleaning the nozzles, then you need to check the flow sensor. Once you have located it, clean the wires and the contacts surrounding it.