Guest Kam Posted December 7, 2018 Report Share Posted December 7, 2018 Hi there, I am looking to replace a couple of aico ei150 with ei166 smoke alarms. I have 2 blue wires, 1 brown and 1 white. I just wanted to know what I do with the 2nd blue wire. Thanks. Quote Link to comment Share on other sites More sharing options...
Tom Sutton Posted December 9, 2018 Report Share Posted December 9, 2018 Harry as answered this one and you responded. Quote Link to comment Share on other sites More sharing options...
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