Heater not working

[fzunited]

I have a 2006 Yukon. When I turn on the heater or defroster, no air blows from the vents. Is this just a fuse problem?

 

[Thumper8302]

first check all of ur fuses, if they are good then id start by checking and seeing if u have a bad fan speed switch (resistor) or need to replace the blower.... try using the search option... there are a few threads on heating and air related problems and they might be able to give u a lil more info on ur problem...... i had a 1990 suburban last year during the summer decide to cook my blower but i changed the transistor as well and all was good after that...