I insulated some a/c’ s with insulating foam. i got a callback saying that the units were overheating and blowing the breakers. when i went to start digging the foam out, i noticed that the filters and fins were filthy. the only place i foamed were the sides. has anyone run into this problem? I thought the only areas you couldn’t seal off were the front and back and bottom.
Discussion Forum
Discussion Forum
Up Next
Video Shorts
Featured Story
Mike Guertin explains which areas of a deck you need to pay attention to in order to deal with drainage.
Related Stories
-
Podcast 551: Power Tool Batteries, Building as a Third Career, and High DIY -
Podcast 551: Members-only Aftershow—Badly-Built Homes -
Podcast 550: PRO TALK With Carpentry Program Instructor Sandy Thistle and Graduate David Abreu -
Podcast 549: Energy Upgrades, Chimney Inspections, and Questions About a Home You Might Buy
Highlights
"I have learned so much thanks to the searchable articles on the FHB website. I can confidently say that I expect to be a life-long subscriber." - M.K.
Replies
What kind of foam?
Where? What part of the AC SYSTEM?
hilti low expansion. i dug some of them out and the one type had louvers. the foam didnt cover them, so im thinking with the old sleeve around it, it needed all the air it could get. even from inside.
I think you are talking about window shaker units, no?
The filthy fins could be part of the problem. As could the HO running undersized extension cords to them. I think we need more info.