i replaced my ac compressor and took it the shop to get it charged and everything. it was working and blowing cold air for about a day and half and then i heard a "crank" and then just started blowing HOT air. Now it only blows hot air. when i pop the hood and feel the ac lines, they get cold like they should be but something isnt letting the air threw. i was told might be my blend doors?

 

Change settings on your heater and see if you get air through the different ports. Also once the engine is hot check that the temp comming through the ducts change as you change the temp setting.

Massey