may be connection loosed.

來源: famer 於 2023-04-08 07:03:19 [] [舊帖] [給我悄悄話] 閱讀數 : (107 bytes)
回答: 請教電工專家安裝smart switch出的問題 由 Wei_PDX 於 2023-04-07 22:13:09

Two possible: 1, The connection loose. 2. The switch that you replaced may a two way switch. 

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