If there is the E17 fault code on the display, there must be too much water in your machine.
Please, follow some steps to remedy the problem. It can happen for various reasons.
Not unlikely, the door seal lets water through.
The flood function and, consequently, the pump are activated when excess water raises the float in the float chamber. It happens when the pipe that leads from the float chamber gets clogged or constricted. If you see the error on the display, please, do the following:
Disconnect the dishwasher from the mains.
Check the pipe for blockages or kinks. Clean the pipe and run a test wash cycle.
If this does not work, check the float switch. If they are not operating correctly, most likely, they need to be replaced.