本帖最后由 移民电工 于 2010-12-21 22:15 编辑 " P8 e' i, W- F
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This is a horizontal furnurs mount on the top of building and intake air form outsid of building, I think you can not fix it by yourself!: g! {6 R- q c9 W
( M. a( e* D' G. g- EThese kinds of device need be cleaning and maintaining before winter season.