Thanks to all for your inputs, especially Chuck.

Chuck: I have voltage at fuse 7 and will now explore at the control unit this weekend. When fuse 7 failed last week, I did pull the pushbutton control and saw NO questionable solder joints but decided to re-heat ALL the joints. I don't know if I had just a fuse problem then or also a questionable joint since I stupidly did both before re-testing. My bad.

__________________
Jim