heater is blowing out cold air instead of hot air?
 

well just last nite i have cold air blowin out instead of hot air. my A\C is dissconnected so dont tell me to turn my A\C off. freind told me its my thermostat but my tempeture is a little above C. what can be some possibilities ? also my vents to the floor and windshield do not work. i switch the buttons on the controls and i just get air blowin out of the main 4 vents across the dash. what can cause that problem?

Probably the Logicon has died.