Got a 2003 civic and the ac just stopped blowing air in all settings. Anyone know where I can start tackling this problem?

 

check for leaks

 

You can refer http://www.wikihow.com/Fix-Your-Car's-Air-Conditioner to make the Air Conditioning work again.

 

Do you mean the blower has stopped working, [no air from vents with heat or A/C? 94

 

correct.

 

So the first thing to do is test for power at the blower motor, [ign. switch on] should be a blue/white lead, if that is good, [you have power] use a jumper lead to supply a ground directly to the other lead, should be a blue/black lead, if that works, replace the blower resistor. 94

 

Ended up being the blower motor and resistor. Thanks