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风扇启动前,inducer motor会先启动,估计你听到的是inducer motor的声音。

coolrock (coolrock)
(#11802918@0)
2018-11-20 -04:00
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Back To Topic: 控制器打在''fan auto'' 时,暖气的风扇呜呜地响就是不送风 ;打在''fan on ''时,过了设定的温度又不停止送风 。请问各位行家们,是该换风扇了还是控制器 ?

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