Dishwasher bosch classicxx

[Anthony peck]

I had a bloked drainage pipe . And the wife didnt know at the time. She used washer it stopped of course i cleared blokage in pipes .
But now i can hear motor pump trying to work.
I went i diy site checked the anuatter i think thats what they called it think teeth missing all there
If drainage pipe blocked due back flow would this stop watdr intake as well so i cant check .
If drainage pipe blocked.
Would it stop other functions