I've been doing some work opn my AC. Had to replace the temperature control switch and plastic connector and recharged my system. Everything seemed to go fine but when I put it back together I'm not getting any cold air out of the front vents. The weird thing is the rear ac vents are blowing unbelievably cold. This is better than before where I was getting no cold air at all but its 105 in Texas where I live and I need come cold air to hit me somewhere besides my right elbow. Can anyone tell me what the problam is?