Reson 8 unexplainable beeping

[Rekusu]

What ho one and all,

 

I have an Accenta Gen4 Mini control panel and a single Reson 8 bell box which I installed myself  when we  built the house 15 years ago.  I have replaced the panel battery a few times over the years.

 

Recently when setting the alarm, there was a loud beeping (not the alarm, about two per second) from the sounder, so I did not set.  Decided new batteries required so bought replacement 12v for the panel and 6v for the sounder.

 

However, that did not solve the issue.  Next easy step, replacement bell box and found a new (but obviously old stock) one on eBay; fitted it yesterday.  The installed battery was reading 4.2v so replace that with the new one, reading 6v.  Unfortunately, that did not solve the issue.

 

What I found with further testing, the alarm appears to be working fine when running on batteries (no beeping) but when I engage the mains fuse, the alarm sounds (which I cancel with my code) but the beeping continues.  Presumably there is an issue with the mains but what?

 

I only originally replaced the batteries; I did not adjust or tighten any of the contacts.  I have checked the fuses which are all OK.

 

What can I do next?

 

As an aside, since the new Reson 8 battery is reading 4v, can I put that onto my electronic car battery charger with the 6v option?

 

Many thanks

Edited Monday at 07:47 by Rekusu

[james.wilson]

What's your battery charging voltage I'm guessing it's quite high?