Air-conditioning fan control knob

Lately when I start my truck my air conditioning fan control knob will not work from zero to the mid levels. The air conditioning only turn on when I turn on full blast. Also after turning on full blast and I turn back down to a lower fan speed it does not work. That being said when I'm on full blast and start driving I can adjust it to a lower level and it tends to work. Ideas?

 

Maybe need a new switch?

 

Idea on part nber?

 

Yes, mine too. I took it apart and used contact cleaner on each of the contact points, cleaned off the small "bb" that slips into each of the low/med/high detents and put some dielelectric lube on it. Still the same response. Works only on High Speed.

 

found this... hope it helps. I haven't replaced mine become it came back, magically!

http://www.tacomaworld.com/forum/2nd-gen-tacomas/70275-fan-speed-switch-not-working.html