how to fix indesit dg6100 w dishwasher?

hi all
today we tried to use our dishwasher and when you close the door it trips all the electrics in the house. i have taken the panel off and it seems the door closing mechanism, (which seems to have a little switch on it has a problem) there are 2 prongs which attach to a brown wire at the bottom and 2 wires that attach to the top prong. i have cleaned these connectors but the problem still persists, any advise would be greatly appreciated