Heat Help
 

Morning guys,
Woke up to 31* this morning and went to turn the heat on.... passenger has heat, just the driver side wont heat up and the vent is always on no matter even if the fan is off... So the vents are shut. No fuses are blown that I can see, Checked quite a few. Any idea on what this may be??? Its gettin CHILLY up here in MN quickly so trying to fix it b4 we get snow.......