My dishwasher has suddenly stopped working. On its last use the cycle was still going after 3 hours, I cant remember if the plates were hot and there was water in the bottom. I have emptied the water out and cleaned the filters, checked the arms,salt,rinse aid which all seem fine. So I put it on the eco wash and its jumped from 23 mins to 86mins and isn't beeping when I opened the door ! HELP !