Need help fixing my dishwasher

womble12345

I have a 3 year old Beko dishwasher, it has always been working very well up
until a few weeks ago. Now when I turn it on it just buzzes loudly, I expect
that it is the part of the cycle where it tries to fill with water so I
expect something is preventing water getting in, I disconnected the inlet
hose and cleaned the inlet filter. The problem was still there so I cleaned
the outlet filters and still a loud buzzing. The buzzing comes from the
bottom of the dishwasher so I turned the whole machine on its side and
looked underneath but nothing glaringly obvious, funny thing was when it was
upright again it worked OK for half the wash and then buzzed again, it was
as if tipping it on its side dislodged something. Anyway I tried tipping it
on its side again and it still just buzzes. Does anyone have any thoughts of
what to try next?

Thanks,
Simon