I have a 2007 Caravan that is having air conditioner problems. I believe it is all electrical, but do not know where to start. The blower motor will not turn on, previously it would work in all modes except full power. Is there a simple relay that needs to be replaced? I found a few posts about the resistor fixing the problem, could that be it? Any information or further instruction on disassembling the dash would be greatly appreciated.
Thanks!

 

yep, resistor most likely. It is located behind the glove box and is attached by 2 8mm screws.