本帖最后由 移民电工 于 2010-12-21 22:15 编辑 3 z: W3 ]9 \; C& |9 A3 S4 k4 E! _2 r& [+ i
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! , f1 L- U' `. g/ g7 m1 U5 G3 D3 D- M$ @3 X0 Y: B
These kinds of device need be cleaning and maintaining before winter season.