Several years ago I had a small addition added to my home. We decided to have the addition heated on a separate zone. The heating guy added 3 dampers to our existing venting system (1 to the new venting to the addition, the other 2 to close of the vents to the existing house). The first year everything was great. A year later one of the dampers stopped working. The guy came out, sprayed a little wd-40 and said the problem was fixed. Obviously it was not the solution. The heating is all screwed up now. As far as I can tell, the damper to the addition, is constantly open, and the other two that were suppose to close off the vents to the rest of my home aren't functioning right (at least on of them is not closing when the addition is calling for heat which causes the rest of the house to overheat.

My question is - How easy would it be for me to replace the dampers?

Thanks

John

Pretty easy fix. I just replaced one of mine.