If central air conditioner turns on but is not blowing through the vents, check the filter. If it is dirty, change it. Change the thermostat into cool, this will defrost the air conditioner.
No power, no air! Simple
When there is a problem in the vent system it defaults to defrost setting. Check the doors & vac supply
Check for a vacuum leak -sounds like it is starving for vacuum and reverts to the default position
2003 crown vic air conditioning vent dont blow
perhaps because the engine running heats coolant that cycles through the heater core and has air blowing across the aluminum to exchange the heat into the air that is forced through the vents
Jammed blend door or blockage in the ducts if you mean to say air isn't blowing through at all.
If the air vents of the Chevy trailblazer 2004 are not blowing air, have the fuel pump checked.
The most common cause of an air conditioner not blowing air is a plugged filter. Be sure your filter is clean.
Sounds like vents are in open position where it passes through based on speed with or without fan on
Well, its a hard quiestion, but to be truthful, there is no cure haha
first thing to check is the fuse