打开一半就动不了了) l+ A H- R' k. x
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我家车库在开关时也是一阵一阵的惨叫 & \& J4 Q. [5 z( b" M W' a6 E 7 h0 o/ e ]1 \/ X不过还好还能打开关上 4 i; B S) R m) j' v) l- k, }0 R d0 t* J( e% m
请问行家,是不是有些部件的润滑油冻住了?还是因为有些部件收缩太厉害卡住了?
Yes, it is just tooooo COLD. And the opener is not maintained properly. you are not along. 4 q( z+ U6 `/ |, A. X" J) ^
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But we should get professional to " tune-up " the garage opener during Fall season.