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AllyS

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  2. PIR wiring help

    AllyS posted a topic in !!..DIY Installers..!!
    I'm trying to work out the wiring of an ancient PIR sensor that's been disabled. I don't know if it's been disabled because it's faulty or for another reason. I've got a replacement PIR sensor but I thought it would be good to work out the wiring and test the existing sensor before attempting to replace it. It's currently wired like this: Blue & Red: tamper detection (T2 & T1). This is working. Yellow & Black: Wired together in (C) White: Negative (V-) I guessed that Green might be V+ and the PIR circuit wired together, so I tried wiring Green to V+ and Yellow to the unused NC. This resulted in the PIR LED always being on and triggering the alarm. I also tried Black to V+ and Green to NC, which resulted in no PIR led but always triggering the alarm. Can anyone help?

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