Hummer h3 ac, heater quit blowing just overnight is there more than one fuse for the ac or what could it be?

Under the dash on the passenger side is a connector that is know to go out. It burns through the plastic mainly on the grounded side. Issue is mine has went out every six months or so. There is no recall either. Part cost about $20 for each coneector piece. Lucky mine only has need one side of the connector replaced. On the H3 its red and right under the dash on passengers side up by the door. Hope this helps. If not you will have to take it in to see if its the fan motor or something else.

Turn the fan on and hit the fan motor a tap with your hand .. if it starts up you know it needs replacing .