I noticed about 2 days when I turn on the Air condition the number 1 and 2 positions on the switch does'nt work. When I turn it to number 3 or 4 it works. This happens with AC or heat. Has anyone experienced this before?

 

Blower motor resistor most likely, replace it.

Before you ask what or where it is, search.

 

+1, very common problem.

cheap fix, about 30-40 bux new from dealership for the resistor. takes a few minutes to swap it out.

 

Thanks for the info Guys. Oh by the way I did do a search. Anyway your suggestions led me to the source of the problem. Thanks again.