2007 Silverado NBS A/C not blowing air

[cs300823]

All of a sudden when I got back in my truck after going into the store the a/c would not blow any air is there a fuse I need to check or is it the resistor thank you in advance.

[Chevor]

I have had to replace the blower motor before.

[cs300823]

Update: Went out after about an hour started my truck and now the AC works fine but after driving around for about 30 minutes the AC would turn off and on after a mile or so from my house 2 times but never did it again ....maybe dust in the switch your thoughts....