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

[Specialist]

So the SAB tamper is bypassed. With the SAB cover back on, remove the Black link in the panel, remembering to leave the Yellow & Blue wires connected to the panel. Re-fit the panel cover & the try removing the SAB cover to see if it now activates. Wear ear defenders when doing so, the sound level can damage your hearing or even startle you into a fall from the ladder. Just 1 thing to remember : It may have been linked due to a fault in the tamper circuit that the engineer was too lazy to look for.

 

[telectrix]

So the SAB tamper is bypassed. With the SAB cover back on, remove the Black link in the panel, remembering to leave the Yellow & Blue wires connected to the panel. Re-fit the panel cover & the try removing the SAB cover to see if it now activates. Wear ear defenders when doing so, the sound level can damage your hearing or even startle you into a fall from the ladder. Just 1 thing to remember : It may have been linked due to a fault in the tamper circuit that the engineer was too lazy to look for.

mypost #3. before seeing the photo. usual cause is the back tamper of the bell micro not reaching the wall behind. might need a bit of a bend in it.

and is that sun symbol supposed to be strobe -? not familiar with galaxy.

 

[Specialist]

Sorry didn't see that, Sounds like a bit of a lash up to be honest. 12 core down into 4 core, so obviously a joint somewhere & something else running off the other cores. Possibly a PIR or upstairs keypad, both of which have been known to cause rogue bell tamper faults. Looking at the state of the panel wiring, I'd hate to see how they did the cable join.
Yep the Sun symbol is for strobe, obviously didn't have enough cores to connect the strobe up.

 

[Lightdream]

Thank you all very much for your helpful advice. Managed to get it sorted:

1. Removed the tamper links so all the tamper functions have been restored on the non-bell components. After making a few calls to the engineer who does the annual test, it turns out that the links were put in because we kept getting faults. When the alarm was installed years ago, they split that 12 core cable and made the joins under the carpet by twisting wires together and then taping them! Now we've run fresh, unbroken cables to all of the sensors, so no faults.

2. I adjusted the bell micro but still no luck. However, when screwing in the terminals at the bell, I noticed that the bell started ringing when I put a bit of pressure on the screw terminals/the circuit board. Therefore I have used a little plastic shim between the circuit board and the metal frame of the inner bellbox structure and bingo, it all works fine!

3. Just as a side note, even though the strobe wasn't connected at the bell or the panel, the strobe light still flashes when the alarm is triggered.

 

[Specialist]

Hi: Thanks for letting us know what happened, it's always nice to get a bit of feedback. Glad to know that you got it sorted.

 

[Flanders]

You will find that the strobe will only flash for as long as the bell rings as they are connected to the same terminal in the panel (20mins as i remember it) . The reason the strobe has it own circuit is so it continues flasing after the bell as stoped

 

[telectrix]

the fault on the bell PCB is most likely a dry joint, probably under the terminal block due to it may have been over tightened some time and thus cracked the solder.