vykingman Posted January 5, 2017 Author Share Posted January 5, 2017 2 minutes ago, PeterJames said: That narrows it down a bit use the 24hr tamper wires as the circuit and link out the tamper circuit at the panel. If it stops you either have an intermittent short between tamper and alarm or an intermittent open circuit . Thank you I understand what you are saying. I'll check it first thing tomorrow. Quote Link to comment Share on other sites More sharing options...
vykingman Posted January 6, 2017 Author Share Posted January 6, 2017 16 hours ago, PeterJames said: There are several things that could be causing your problem as follows: 1. Auxiliary power failing. Loose fuse or poor connection at the panel down powering the vipers will cause the circuit to go open giving the impression that they had activated. This is why its important to know If the pir were to activate along with the vipers when the system is fully set as this would indicate that it is a power problem. 2. The cables to the vipers may have a fault on them, the fact that you have nt had a tamper fault would suggest that the 24hr loop is okay, if you swap the pair both ends and you start to get tamper faults then you know its the cable. Although it could also be an intermittent short between the tamper and alarm circuit. So if the false alarms continue it still maybe a short between alarm and tamper, To prove this I would remove the wires from the tamper circuit and fit a link, if the fa's stop its a short problem. 3. The panel itself. It could be just the zone or it could be dropping power 4. The vipers. As there is two of them it is very unlikely, but not impossible. My money is on 1 or 2 the detectors seem to work as they should when tested and the panel operates correctly, but an intermittant fault can be difficult to find especially without a multimeter. Top man Peter James - I started to work through your suggestions and as I did so I also did a visual inspection of the connections in the control panel. As I touched the zone 7 (false alarming) the yellow cable which is the alarm cable fell out of the connector. I noticed more than 50% of the multi core wire had broken away. I double checked the rest - all were OK. I'm going to soak test over the next few days. I had only checked the internal battery which was fine. I appreciate that this may not be the problem but its a good starting point. I have one more question. Is it possible to programme the FA zone out of the system? Or do I need to disconnect the zone in the CP. I am going away for month of February and If the problem persists I would like to set at least part of the alarm. I must thank you once again for your time and input on this it is very much appreciated. Whilst I'm happy around handling electronics and looking at the physical side of things, the old brain slows down a bit after time. Back in the late 60's I worked on fighter aircraft radio systems and their wiring. Lets hope the problem is fixed. Quote Link to comment Share on other sites More sharing options...
datadiffusion Posted January 6, 2017 Share Posted January 6, 2017 (edited) If you have the engineer code then yes it's easy to program out the troublesome zone; but unfortunately we can't give out engineer manuals here. If you struggle to find one elsewhere (you won't) then linking it out with a wire would work. However, as you say whilst it's highly likely the loose wire was the cause, it's not a definite just yet. If you can get Engineer access, what would be better would be putting the zone on 'soak' test whilst away. If it triggers, you won't get an alarm, but it will let you know when you unset. In that way a week or sos holiday would be an ideal time to soak test. Edited January 6, 2017 by datadiffusion Quote So, I've decided to take my work back underground.... to stop it falling into the wrong hands Link to comment Share on other sites More sharing options...
al-yeti Posted January 6, 2017 Share Posted January 6, 2017 Worst case you could loop the zones in the panel temporarily as you have a Pir covering the area until you get back Quote Link to comment Share on other sites More sharing options...
MrHappy Posted January 6, 2017 Share Posted January 6, 2017 (edited) 8 hours ago, vykingman said: I noticed more than 50% of the multi core wire had broken away. A competent alarm monkey may have found this this by comparing the commissioning readings against whats measured 8 hours ago, vykingman said: Back in the late 60's I worked on fighter aircraft radio systems and their wiring. It may be a rumour but ACT Meters claimed they demo'd their "check mate radio meter" to the RAF & used it on an Aircraft which found a number of circuit faults which the RAF tech people assumed was a fault with the check mate but was later confirmed to be an issue with the aircraft 8 hours ago, vykingman said: I am going away for month of February and If the problem persists I would like to set at least part of the alarm. Tried post this on an Iphone yesterday but safari/TSI doesn't work for me ? My Sub called yesterday am after an FA at 05:30, they have fully comp maintenance so the issue was resolved with £28.00+vat of parts fitted by noon & there away in Australia until February Edited January 6, 2017 by PeterJames public swearing Quote Mr Veritas God Link to comment Share on other sites More sharing options...
PeterJames Posted January 6, 2017 Share Posted January 6, 2017 My guess would be that you have solved the problem, but finding a credible cause will stop you investigating further, so I dont blame you for using caution. That said I am 99% sure it is most likely the cause. Quote Link to comment Share on other sites More sharing options...
vykingman Posted January 21, 2017 Author Share Posted January 21, 2017 UPDATE: the alarm has now been tested fully for over two weeks - four days at full set - and all is well. Once again a big thank you to all who helped me. It was very much appreciated. Quote Link to comment Share on other sites More sharing options...
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