Disconnect outdoor siren, will alarm go off?

[buzurk]

Hi

I got a Bosch Solution 2000

The outdoor strobe/siren constantly makes a clicking noise ever 10 seconds or so, so i want to replace it

It has a single screw on the front then i assume 4 screws inside securing it to the eave,

If i remove the lid and the strobe will the alarm go off? do i need to do a full power down including battery disconnect if i wish to remove it?

[mtv]

It will only go off if there's a tamper switch.

Depending how a tamper switch is wired, it may still go into alarm even if disabled, so yes, in that case, you would need to remove all power.

[secure]

It might be that it is a 12 volt siren connected to the horn output which is supervised. This supervision has a slight voltage to it which might be causing the faint siren noise.
A- Connect a 3k3 resistor across the siren
B- Connect it to the Internal siren output instead
C-Contact your installer to check.