If your house is not cooling down like it used to then maybe your A/C has a refrigerant leak. You may be running low on refrigerant due to a leak. Refrigerant takes on the heat from your home and sends it outdoors. So without enough of it, the system can t perform as well. An AC works [ ] The post My air conditioner is not cooling the house down like it used to. appeared first on TOBIN Heating & Air Conditioning.