Candy cdi1012

Hi Guys first time posting.
I’m an electrician to trade but could do with some pointers on my candy cdi 1012 dishwasher. Have had it for 7 years and it has been great. Now it is not working.
This is what happens.
I select program, shut the door, the inlet valve works and you can here the water entering. The drain pump definitely works because I can here water getting pumped out. so water is getting in and coming out. But no water enters the washer . The spray arms don’t move, I have checked this. So it must be the main circulation pump right?
I have checked the following:
inlet filter is clean
inlet valve seems to be functioning
drain pump seems to drain

The main circulation pump. I don’t see no capacitor so it must be a permanent magnet pump right? How do you test these?

would appreciate any pointers in getting my dishwasher working again

thanks

Scott