DIY & Home Improvement

Ours is about 20 years old. The best place to start is to have someone with knowledge of electronics and a meter test it out for you.

There have been times when ours has gone out that it has been just a fuse, but the last time about a month ago, the husband checked the capacitor and it tested as bad. He got a new capacitor and installed it. It ran fine, but the unit was getting hot and it wasn't blowing cool air inside while running. He ended up buying a new motor and installing it, along with the previously purchased capacitor (since it too was still bad) and that fixed the problem.

In the last 5 years, he's also replaced the fan motor and some sort of controller circuit in the furnace.