On 27/01/2020 06:16, Michael Chare wrote:
On 26/01/2020 23:56, JoeJoe wrote:
We have a wired house alarm that was already in place when we bought
the house some 15 years ago.

It has several movement sensors around the house, a large metal case
that all the wires come out of that holds a large backup battery and
the circuitry, and a control panel.

Weve used it several times many years ago, but after it went off
around the clock whilst we were away on holiday and kept our very
friendly neighbours up for days, we stopped using it altogether. It
hasnt been used for many years, but is still connected, and the
lights on the panel are on (alarm disabled).

Last night it went off at 3am (not amused - luckily I managed to
remember the code to reset it). By the look of it there was a short
power cut just prior to it going off.

Is it possible that this was caused by the backup battery not holding
charge any more?Â* We cant remember for certain, but we believe that
more than 10 years ago we had a similar incident and the alarm guy
came and replace the battery, and everything has been well ever since.
It is also very possible that the last time we have had a power cut
was that previous incident some 10 years ago.

Also, what does it take to disable it altogether? i.e. completely
disconnected from power etc.Â*Â* We plan to move away in the near
future, so would like to leave the new owners the option to reconnect
it easily if they so wish.

You need to get the engineering manual for the alarm which will tell you
how it all works.Â* You did not mention the make and model.


Or that the engineers code might be changed and locked out?

--
Adam