air conditioning blows hot on 2001 Nissan Altima

occasionally, the air conditioning will start blowing hot air instead of cold air. why is this? Had a/c charged but situation did not change. Blows air fine, just not cold all the time.

by in Pinellas Park, FL on March 09, 2011
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer
ANSWER by , March 09, 2011
you need to have this checked by a qualified Japanese specialty shop. could possibly be a evap temp sensor, but this is just a guess.