本帖最后由 移民电工 于 2010-12-21 22:15 编辑 % w/ P( q( L' X5 f8 V4 F% O4 t6 B6 Y3 w5 Z, 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!' b# a* v; J6 K2 C- x$ z' W T
" L& u, H5 o8 ~1 e9 e3 kThese 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 3 \6 t1 N: A2 ^8 ?/ O! S' d* @
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If you do not know these tasks, hire a qualified service specialist.