Galaxy 2-20 does not trigger when bellbox cover taken off

Lightdream · Apr 16, 2017

Hello all,

When moving the location of the bellbox yesterday (see my previous posted topic), I noticed that alarm does not trigger when the bellbox cover is taken off; i've tried this with the alarm both armed and not. The bellbox does sound in a normal alarm situation however.

At first I thought it might've been a mistake during the moving of the bellbox until my Dad pointed out that it didn't trigger when I first took it off, before evening moving it. The wiring is as follows (bellbox terminals shown on the left hand side and panel terminals on the right):

H+ = 12v +
H- = 0v
Rtn = T
R- = Bell symbol (1003)

Is there any way of testing whether or not it is the trigger mechanism in the bellbox at fault please?

Thank you in anticipation.

Ian1981 · Apr 16, 2017

Sounds like a faulty tamper/hold off switch in the bell box.

telectrix · Apr 16, 2017

sounds more like ( or doesn't sound in this case

) that some berk has linked out the tamper feed and return in the panel, being too idle to climb up and locate a sounder tamper fault.

Leesparkykent · Apr 16, 2017

telectrix said:
sounds more like ( or doesn't sound in this case ) that some berk has linked out the tamper feed and return in the panel, being too idle to climb up and locate a sounder tamper fault.

Alarms are not really my thing as you know but would this require a resistor between tamper and 0V if done EOL?

telectrix · Apr 16, 2017

Leesparkykent said:
Alarms are not really my thing as you know but would this require a resistor between tamper and 0V if done EOL?

not usual on a bell circuit. eol is generally used only for detector circuits.

Andy-1960 · Apr 16, 2017

When you disconnected the bell box it should have activated as well because the bell is held off by power from the panel, so if anyone cuts the wires to bell box it will still sound.

1. Have you had the bell ringing at all?

2.There should be a battery within the bell box to power the sounder, this may need replacing.

3. Check the micro switch that is operated by removing the lid of the bell box.

Lightdream · Apr 16, 2017

Thank you for this, i've replied in bold below:

Andy-1960 said:
When you disconnected the bell box it should have activated as well because the bell is held off by power from the panel, so if anyone cuts the wires to bell box it will still sound.

1. Have you had the bell ringing at all?
The bell didn't ring when I unscrewed the wires from the terminals inside the bellbox. It does ring when there is a normal alarm situation however (e.g. step in front of a PIR).

2.There should be a battery within the bell box to power the sounder, this may need replacing.
I thought this might be the case, is there any way of testing this for sure? The alarm was serviced a couple of months ago and the chap didn't say anything to my Dad about it, although I know it could be a recent thing.

3. Check the micro switch that is operated by removing the lid of the bell box.

The switch pushes in and out but without dismantling the box and the contacts seem clean and still move as they should.

Lightdream · Apr 16, 2017

telectrix said:
sounds more like ( or doesn't sound in this case ) that some berk has linked out the tamper feed and return in the panel, being too idle to climb up and locate a sounder tamper fault.

Thank you telectrix, how can I check this please? Does the image below shed any light on the situation please?

[ElectriciansForums.net] Galaxy 2-20 does not trigger when bellbox cover taken off

Andy-1960 · Apr 16, 2017

That yellow link across the tamper terminals might be a clue!

Darkwood · Apr 16, 2017

@Andy-1960
You are correct the normal Tamper has been looped out but the bell tamper is usually separate to the zone tampers so that probably won't be the issue.

Ian1981 · Apr 16, 2017

telectrix said:
sounds more like ( or doesn't sound in this case ) that some berk has linked out the tamper feed and return in the panel, being too idle to climb up and locate a sounder tamper fault.

Bell tamper is separate usually in most if not all the type I've installed

Andy-1960 · Apr 16, 2017

darkwood said:
@Andy-1960
You are correct the normal Tamper has been looped out but the bell tamper is usually separate to the zone tampers so that probably won't be the issue.

As I suggested in my earlier post

Lightdream · Apr 16, 2017

Thank you again to everyone who has replied. I have a few more questions following the above:

1. Should I remove the tamper link? Why would the engineer who tests the system leave this in?

2. Since the bell doesn't ring when the bell cover is then removed (when mains power is on and the system is armed), does this suggest that rather than being a battery problem, it's a problem with the actual tamper switch/bell?

Thank you in anticipation again!

Specialist · Apr 16, 2017

Might be seeing things, but is that the bell tamper that's linked out with a Black wire ?. Left hand terminal block, 2nd & 3rd terminals from left.

Lightdream · Apr 16, 2017

Specialist said:
Might be seeing things, but is that the bell tamper that's linked out with a Black wire ?. Left hand terminal block, 2nd & 3rd terminals from left.

Your eyes are not deceiving you, the T terminal is linked with the 0v terminal with a black wire.

Galaxy 2-20 does not trigger when bellbox cover taken off

Lightdream

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Ian1981

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telectrix

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Leesparkykent

telectrix

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Andy-1960

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Lightdream

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Lightdream

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Andy-1960

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Darkwood

Ian1981

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Andy-1960

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Lightdream

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Specialist

Lightdream

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