Heater/AC blower fan switch?

[scottydale79]

Hey guys was wondering if you think my fan is going bad or the fan switch.
The fan switch is the basic LOW, LOW/MED, MED/HI, HI.
It works in all positions except HI. It actually turns the fan off or very very slow.
I am no electrician, so hoping you will know!

Thanks guys!

 

[89Suburban]

Very possible. You can pull it out and take a look at it for burning before you spend the money. I had to replace mine on the '89 Burb. I think I got pics here somewhere.

Here is a write up on it and a description of the failure:

http://www.gmsquarebody.com/forum/showthread.php?t=403&highlight=heater+switch