One switch terminal overheated and lost tension (poor connection). Switch terminal burned. It was more cost effective to buy the switches mounted on the mounting bracket. Replaced the burned terminal and the switch assembly. Removing the control panel makes it easier to do the work. When re assembling the control panel caution in installing the wire connectors. The relay contacts can be incorrectly install, so mark them. All the other connectors are unique to their receptacles, make sure they are locked in place..