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Alarm says zone is open

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  • 17-04-2018 10:42am
    #1
    NouCamp
    Registered Users Posts: 5 ✭


    I can't put on full alarm as it says a zone is open. This zone has 2 windows with total of 8 contacts. The windows are closed. I can alarm house now but disable this zone. I cleaned all the window contacts and examined for damage. Nothing noticable. How can I diagnose which contact is the issue (using chime??) and where can I get replacement contacts.


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    #2
    KoolKid
    Moderators, Home & Garden Moderators, Technology & Internet Moderators Posts: 24,789 Mod ✭✭✭✭KoolKid


    The easiest way is to disconnect & close off each sensor one by one.


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    #3
    NouCamp
    Registered Users Posts: 5 ✭NouCamp


    So when you say close off you mean make the circuit connect once i unscrew the casing on the contact?


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    #4
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,591 Mod ✭✭✭✭2011


    NouCamp wrote: »
    So when you say close off you mean make the circuit connect once i unscrew the casing on the contact?

    Essentially yes. Once you remove the sensor cover the alarm will activate (due to the tamper switch operating). Have someone standing at the keypad to silence the alarm if you don’t have the engineering code.
    You are then going to short out the the detection terminals at each sensor.


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    #5
    NouCamp
    Registered Users Posts: 5 ✭NouCamp


    This is starting to sound a bit complicated lol I was hoping I could turn on "chime". then open and close each window. And the window that does not chime is the offending contact


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    #6
    KoolKid
    Moderators, Home & Garden Moderators, Technology & Internet Moderators Posts: 24,789 Mod ✭✭✭✭KoolKid


    Because the zone is open the zone wont test.
    Do you have a multi meter?


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    #7
    NouCamp
    Registered Users Posts: 5 ✭NouCamp


    ive a voltage tester


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    #8
    KoolKid
    Moderators, Home & Garden Moderators, Technology & Internet Moderators Posts: 24,789 Mod ✭✭✭✭KoolKid


    NouCamp wrote: »
    ive a voltage tester

    You need a meter that can measure resistance.


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    #9
    NouCamp
    Registered Users Posts: 5 ✭NouCamp


    ok i can get one. what do i need to do with it. Check it there is resistance or current flowing in each contact?


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    #10
    KoolKid
    Moderators, Home & Garden Moderators, Technology & Internet Moderators Posts: 24,789 Mod ✭✭✭✭KoolKid


    Remove the end of line resistor(s) & disconnect the zone from the panel & measure the resistance.

    Try tapping each sensor & contact to see if it changes.


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