Guys,

Yesterday I took a ride and my heat worked. Got home, parked the car. This morning, no heat. No blowing whatsoever. Just dead. Randomly while driving I was monkeying with the switches and it kicked on again. Then I clicked it on and off a couple more times and now it's dead again. Pulled the plug off the blower motor, turned the key to accessory position, and checked the voltage on the plug with a voltmeter with defroster button engaged. No voltage. Actually it blipped about 1/2 volt when I turned the defroster off/on, but otherwise nothing.

What's going on and where else should I be looking?

zc

Check the fuse.

__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

I had changed out the fuse. But you know what... After driving myself nuts I decided to remove the fuse and scrub the connections clean. Wouldn't you know it, the fuse was good but not making a solid connection. So yeah, check the fuse.