Auto Talk 101: Ineffective Air Conditioner - as part of the expert series by GeoBeats. If your air conditioning system works a little bit but not as efficiently as you expect it to or it used to, there are only a couple of different possibilities, one of which is relative to the refrigerant in the system. It may be low, you may have a leak in the system, you may need a recharge, you may need to repair something that is allowing that refrigerant to escape. Either way, that needs to be taken to a repair shop for evaluation and repair. Additionally to that, if you are not getting as much cooling from your system as it could be, it could be that the venting system is not working properly. There are a number of doors and removable components inside the dash that allows air to be directed when you tell it to go. If it is not powerful enough cold or powerful enough blowing, it could be that that system is obstructed and needs some repair also.