No heat in my 03 Grand am GT, advise please!

i have a 03 grand am gt with the 3.4, this morning i needed my heat to get the due off of the window and there was no heat! all the way down the highway this morning i was thinking on what it could possibly be, i switch the dial from hot to cold and there is no difference at all, so first thing i thought of is there is a vacuum problem, so when i got to work i checked the hoses going into and out of the heater core and they are super hot, so i know the heater core is not plugged. I am stumped on this and any help will be greatly appreciated!

Also the heat worked fine roughly 3 weeks ago.

Thank you guys in advance for the help

hmmm, sorry all, i did a search before posting and must have over looked a post already here! just searched again and found what i am looking for i think.

could it be the actuator like stated in this post? it changes from defrost to floor or vent so would not be a vacuum correct?

http://www.automotiveforums.com/vbulletin/showthread.php?t=1073752&highlight=no+heat

I believe the actuator for temp is electrical, not vacuum.....

So you either have an actuator, control head, or wiring problem, since both heater hoses are hot....

yeah when i get out of work, im gonna pull the glove box door off and check the actuator

ok got home and removed glove box and i could already smell something burned up, removed the A/C Heater Blend Door Actuator and sure enough, it is burned up, i will be getting a new one tomorrow and be all fixed.

By the way, this is the easiest thing in the world to remove :) took me longer to remove the screws from the glove box lol

Thanx for the help guys :)