I have just moved into a new house and the kitchen has an intergrated Whirlpool dishwasher, I haven't got any instructions/user manual for it. I have used it twice since I have been there but wouldn't start today when I went to use it. The control panel works fine when the door is open, you can choose the cycle and press start but as soon as you start closing the door the panel lights go off and the cycle won't start? Any ideas as to what the problem could be?