07-29-2016, 05:15 AM
If you still have the original fan motors, it is likely that they can be rebuilt. Typically the bearings and or brushes go out in them and those can be replaced in a rebuild of your core for about $60 (at least that was about what I paid a couple of years ago). Even a complete coil rewire is possible but the cost is ridiculous, about $500-600. However, even that is cheaper than replacing the entire AC system.