Originally Posted by imidazol97
If it does not blow at all, most likely it'* the blower motor. Try hittiing the end cap while key is on to see if it makes contact and starts.
This is _exactly_ the case in my '96 Trans Sport, in which the blower motor starts refusing to turn unless it'* tapped with a stick or something, and this happens about every 18 months to 2 years or so.
When it does, I pull the blower out, blast the armature, brushes and everyplace else I can reach with brake cleaner (just stick the spray nozzle in the side port where the rubber duct plugs in), let dry, add a few drops of oil to the right places, and stick it all back together. An hour of labor is less than a new blower motor and it works fine for a long time after that.