本帖最后由 移民电工 于 2010-12-21 22:15 编辑 - l X, V3 X: ^- |% j) H
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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! V3 a& {" ^9 D9 z) L4 |) b2 R, U7 X) j
These kinds of device need be cleaning and maintaining before winter season.
本帖最后由 移民电工 于 2010-12-21 22:17 编辑 2 E' J, e: K4 n; }( V! L# q$ T! X( m+ ] 0 Y9 O* l( e' K Q' }) K9 uIf you do not know these tasks, hire a qualified service specialist.