hotpoint ultima wt746 say on a 30 min wash it counts down to 1 min then stays on this with the drum turning intermittently with dirty water still in the machine, until machine is switched off. Select rinse and spin turn the machine on and press start button, 30 mins is displayed and the machine goes through the rinse nad spin program and when finished the door lock is taken off and washing can be retrieved. Have checked the hoses are not trapped or blocked can you suggest anything else