I was going to say has the water pressure changed but you checked that. Is the washing machine going into spin OK or is it having trouble and deliberating and keeps trying to balance the load? Has the water level in the drum changed? - have you seen through the glass door that the water is higher than it used to be when new (if so could need a new water level pressure switch) - Have you pulled out the drain pump filter and see if its nice and clean? - is the machine draining nice and fast as it used to? - could the drain pipe at the back of the machine be pinched?