In article ,
James Onslow wrote:

My 5 yr old Creda w/m works fine except when it's on the last
fast spin. Once it gets to this it makes an awful "clackety,
clackety" - knocking sound which probably everyone in the whole
block of flats can hear.
[snip]
The noise seems to start as the machine picks up to a very high
spin but occasionally it seems to 'knock itself out' and
sometimes stops and the spin finishes quietly. It does sound as
if there maybe something loose.

Our Hoover recently did something similar, a nasty
clackety noise at the back end of the spin. Turned
out to be curtain hooks inside the drain pump, no
noise at all whilst the pump had water to pump, but
rattling against the impellor during the last spin
when the pump was spinning dry.

--
Tony Williams.