My dishwasher has started shorting out. Basically, it has been showing a leak warning sign for a long time, but the floor underneath and behind hasn't been wet and so I assumed that maybe it's a false report. However, recently, the machine shorted out and tripped a switch in the fusebox. Basically, the machine starts, loads some water, and shorts at that moment, or a minute later when it tries to wash. I hear a bang, and it trips a switch for the kitchen sockets. The bang appears to be coming from the floor of the unit, at the back corner right hand side if we're looking at the dishwashers front. The exact model of the dishwasher is Hotpoint Ultima super silent SDW85. Any suggestions? Thanks.