If your furnace stops working on a cold winter's day, you need to have it repaired right away. The same is true if your air conditioner gives out during a heat wave. In some cases, you may need a whole new HVAC system. This article has some useful informa Do you hear a clicking sound when your fan is turning? This may mean that there is something in the way of the blades of the fan. If it gets so bad that the blade bends, you must replace it, just unbending it will leave the fan unbalanced and can
