usually some foreign object is blocking your pump,ie a penny a cotton bud etc.
john, December 2011
uneven load,not draining properly,motor brushes worn.
remove clothes from the drum.put them back and select spin.if it spins OK keep an eye on it.If your machine has a filter check it
ck, December 2011
edit
I can answer this question...
i have just done a wash and its not spinning properly?