I've searched the forums here about this problem, and I just want to make sure I've done all I can before I call a pro.
The A/C works fine, then the insulated pipe that connects to the furnace freezes up after a while and I have to shut the a/c off and let it thaw.
I've cleaned the outside units fins as best as I could (with the hose) and I've made sure that the furnace filter is fresh. When the AC is on, it's blowing thru the vents properly, so I don't think its the blower motor.
Is there anything else I should try myself before calling a tech?
P.S. - I did notice that the old furnace filter had been facing the wrong way. I'm not sure if this could have messed something up.