本帖最后由 移民电工 于 2010-12-21 22:15 编辑 3 p# s1 v- ?4 O9 m/ |/ Z' w4 I , f. ]) E" ~, v- D- mThis 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! " s8 K3 P- ]1 V" O. Q& t0 K8 |6 y& i3 r0 j) E1 J+ L& e+ ?$ s
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 + r; e" E2 t) Y$ l1 \
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If you do not know these tasks, hire a qualified service specialist.