I don't know if it's a fan switch or fan motor? I can feel the cool air in vent. on 2008 Mercury Mariner

No air blows out.

Asked by for the 2008 Mercury Mariner
Check ALL fuses!
I'll check the fuses. One more thing that I noticed later on last night was, as I turned the key in the ignition the fan came on. Could the ignition just be loose and somehow make the fun come on and sometimes not make it come on. Hope not a short in the wireing. What do you think?
If the fan is the only affected circuit,i dont think it's the ignition switch.
However if other things aren't working as well,it is pos..
Thanks for your quick response..