I tried to jump the heat switch and didn't do anything. I did learn to NOT stand barefoot on wet ground and grab a hot wire though
Peter I think said that if this didn't work then the problem was in the push button unit so I figured what the hell lets take a look at the guts of the thing. When I pulled it out it had a reman sticker dated 11/96 on the bottom. Inside all the copper traces had been gone over with solder. I just reflowed everything and hit all the pins where they came through the board. Not a hard job at all and took about 45 minutes start to finish. Best thing is the heat now works, fan blows when I want it to blow, and A/C is fine. I now get air flow in ways it has never worked before. It was kind of cool with heavy rain this AM and when I turned on the climate control it started mixing air going from floor to upper middle vents. Floor was warmer, centers were cooler. When it got to what I had set it to fan spun down to very low and cabin temp was perfect and stayed that way.
Credit this board with another $150.00 savings!