Help! heating problem

[ronp1943@q.com]

I have a 98 c5 and no matter where I set the climate control, floor, vent, or defrost, it does not flow to the floor. is this a fuse issue or control issue?
Thanks Ron

 

[dadaroo]

You have not told us what kind of system you have. Also, you have not posted whether or not you have any codes.