The blower motor stopped working in my 1990 F250. I can feel the switch catching when moving the switch from position 2 to position 3...and, the 3 lowest settings never really did work, only the highest setting. Now the blower motor won't even come on at all??? Anyone know where to start looking to diagnosing the problem? Also, is there an under-hood fuse box that holds the fuse that powers the blower motor?

Thanks for the help guys,
Hunter

ps-I also posted this in the HVAC forum.

 

The resistors going on the blower motors is pretty common(it only works on hi). I'm pretty sure there is a seperate fuse for the blower motor, but I can't remember which one it is. Check your manual.

If the fuse is fine, the the motor crapped out. That means you get to tear apart the dashboard. Hooray!