On 20/07/2020 14:05, Tricky Dicky wrote:
Put a meter across the strobe terminals and trigger the alarm see what happens if you get a reading at roughly 0.5 - 1hz then it is the bulb, nothing would suggest the circuit. If you do not have a meter since most alarm circuits work off 12V a car bulb will do. You did not mention if the siren was working or not?

Richard


yes all 3 sirens work....

I have actually got 3 working bell boxes on the house and annoyingly the
strobe on the rear bell box stopped working,

Followed some time later by the strobe on the front bell box failing

So the only working strobe is the side bell box!

Are there any bell boxes that now use superbright LEDs instead of xenon
strobes now?

S.