how to get the radiator fan working

What is your question?

i'm no mechanic.. my fan isn't on in front of my radiator.. is this suppose to be always on? or just kick on when it reaches a certain temperature? My van was overheating yesterday.. trying to see what the problem is before I take it in. Can this possibly be a blown fuse problem?? or should I just take it in to get looked at?

How long has your 2004 Pontiac Montana had this problem?

one day