Welcome,
I wanted to share my experiences
I also had an e-24 error (drain).
The dishwasher hummed as it washed, the voice tapping against the spokes of a bicycle

Thanks to the electrode people, I got into the pumps.
The smaller one had a seed in the gears, but that was not the reason.
The bigger one had a stuck toothpick and a big stone, they were tapping it.
dishwasher Siemens SN56M580EU.
if someone is struggling with removing the underside, I suggest:
- unscrew the bottom sheet metal panel - two screws (exactly below the door on the front)
- unscrew the side walls (two screws in the seal)
- put the dishwasher on the back (note, there may be some water)
- in the upper part of the bottom, on both sides, you will see one latch, you just need to move it with a screwdriver
- there is a bent soft plate in the lower part, you need to straighten it
- in the very center of the bottom there are two latches, loosen both and push them inside
- now we gently pull the bottom, looking if something is still holding
- watch out for snakes, water will fall when they fall
thank you to everyone who contributes here
I became a hero in my home

:D
-
Mariusz