Help, 1969 300 Convert. Blower fan works in all the A/C modes but will not work in Defrost or heat modes....HELP ! I can hear all the doors opening and closing and feel heat through the vents but no fan...Thanks
I actually had something very similar to this happen to me years ago. If the switch in a 69 is made in a similar fashion to a 68. I believe the buttons on my switch are laid out from left to right off/heat/ac/max ac/def. Mine would also work in the ac modes, but not heat and def. The back of the switch came loose so when I would push the buttons the only ones that would activate the electrical part of the switch were the ac modes. It drove me nuts for sometime.
From this picture that I grabbed from ebay it looks to be the exact same type of construction.
The darker piece came loose and would let there be a good electrical connection.
I hope this helps.
Thanks for the warning...I bought an extra assembly a while back for a knob...Hope the switch is still good..Be very careful that old plastic is pretty brittle, but of course if it's already broke you'll need a new one.
41 Indian... is this referring to a motorcycle?
Coincidence... I was looking for another thread and I found this.
A/C / Heater Vacuum Switch Rebuild
Thanks for digging that up. I recommend a rebuild of yours with new parts versus an overpriced NOS unit with brittle, old plastic that will fail in short time.