About a month ago my thermal fuse blew in the dishwasher and I replaced it and it worked fine. last week the door switch went on the machine. I replaced it and now the thermal fuse blows everytime the dishwasher goes into the last cycle. The white wire and the white and violet wire going to the door switch have a little darkness to them. Is it because I didnt change the wires on the door switch or is it something else.