If your cooling system isn'tblowing cold air, it could be that it's low on Freon gas. If Freon or Refrigerant is low or has run out altogether, a charge will be needed to get your plan working again. During the peak of summer, ensure that your Freon is charged officially to keep yourself cool plus comfortable. Your plan will also run more efficiently, resulting in lower energy bills. The refrigerant gas in your cooling system will last for the life of the unit, however leaks can occur plus this will lead to refrigerant gas leaking out. As the refrigerant levels decrease, your cooling system will produce less cool air. If the coolant becomes completely empty, your plan will produce no cool air at all. When your plan has a refrigerant leak, you may notice a few signs. If your plan is not running as efficiently as it usually does, you may have a refrigerant leak. In the case of a refrigerant leak, the condenser fan may produce lower un-even temperatures due to a lack of refrigerant. Look at the coils in your plan if you notice ice plus contact an Heating & Air Conditioning specialist to have your refrigerant levels checked. A leak that produces an oily residue may indicate that there is a refrigerant leak. What is a refrigerant charge? Let myself and others explain. Before refrigerant is recharged, your plan must be warmed up. In order to make sure that there is an even charge, the air supplier will need to keep the compressor running. When adding refrigerant to a system, it is easy to overload the system, a well-trained supplier will know to add refrigerant in small increments. The plan should be run between each increment to check pressure levels. Once the refrigerant has been restored to the proper level your plan should be working officially without the initial troubles arising again.