I had some problems with the blower not working. I needed to wiggle the switch to get it working again. The rest of the HVAC controls are full of Arizona desert dust and where hard to move.
So it was time for some cleanup and lubrication of the HVAC control unit:
The dusty HVAC Controls:
Dried out grease and a lot of dust:
Carefully cleaned the face plate and pay attention not to rub off the printing:
The blower fan switch:
Not in the best condition. I decided to replace the switch for a new one. This one was still giving me problems after cleaning: