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runningpiglet, Many thanks for this. This is new and really useful sounding info. Would it be difficult to set all this up, do you think (not a techy, although have seen the inside of an alarm panel before..)?

Thanks. That's very useful info. (y)

Thanks, Andy. The alarm is about 10 years old - Honeywell Accenta ADE G4 The dialler is Honeywell ADE Gen4 Informa (fitted shortly after the alarm was fitted) Cheers

Dear all, We have a dialler connected to our burglar alarm that, in the past, has rung us if/when the alarm has been activated (very rarely). This has used the landline to dial out. We've recently had the landline de-activated, though. Question is: Is there any way the current dialler can be...

Update: Re #11 above, have been advised to swap the green (good core) / black around at the zone in the panel, to see if that clears the sensor...

Thanks, Sharpend, Guess it's out of curiosity combined with lack of knowledge of what was actually inside the keypad. Had I look and now know (thanks for the input nonetheless). Have done various checks, tests, replacements and re-wires. To recap:  1. Changed affected PIR sensor (assuming...

Dear all, May be tempted to look inside the (separate from the panel) keypad next to the front door. Thanks.

Hi NozSpark, Sorry, not sure what you mean. Btw, for info, following a good tip from elsewhere, tested to see if both or one of the alarm cores was broken. Twisted each of the alarm wires (green/yellow) in turn together with the black earth at the PIR end (know the power circuit works so the...

Thanks for this. Test(s) done. Tested each of the zones at the panel (multimeter set to test continuity (200 Ohms)); a) with PIR not set off, b) with PIR set off (walked in front of). Bold are the problematic ones). Power on (12v). Zone / reading not set off / reading set off (tested the...

Thanks, Sharpend. No. Would this involve simply putting a multi-meter on the (disconnected) green / yellow wires at the main panel end to see if they are someway creating a 'short circuit' along the wiring somewhere? Also, am I right in thinking that if I do this and have the PIR activated it...

Dear all, To add to the above: .... 9. Replaced backup battery with new one. Problems still there. I'd assume this means damaged cables (as Sharpend suggests). Just to clarify, two of the four sensors are affected. The original alarm fit was done pre-plastering / flooring completion, so all...

No recent work. Not ruling out mice / rodents (large Victorian semi). Will change the battery in any case as this has been a repeated suggestion. If this doesn't fix it will just run some new cable to the affected sensors, trying to 'hide' as much as possible. Cheers again.

Dear all, Many thanks for your various comments and advice on the above. Just to update, I've now performed the following tests, with the outlined results. 1. Changed affected PIR sensor (assuming that was the fault). Didn't fix the problem. 2. Did a walk through test (see above) 3. Tested...

Just to add to the above, If it's of any relevance, on the sensors there are just 4 wires: Black: -0v Red: +12v Green and Yellow: Both alarm

Just to update. Tested the battery under load, as advised (sorry, had the panel open for the first pert of this). Times tested shown on left: 18:00 12.4v disconnected from mains 18:15 12.36v 18:25 closed panel 18:40 12.26v 18:55 12.22v

Thanks for this. Will try to test the battery under load as you suggest (the alarm has it's own fuse at the fusebox, so presumably flicking this off would be ok, rather than physically disconnecting?). It is 8 years old so might just need changing, as you say. The short wire (will have to get...

Trailer Boy, Many thanks for your reply. Just disconnected the battery and tested in isolation, not under any load (not sure how I'd do this in the context of testing the alarm). The wiring runs partly under plaster and floorboards, so is in most parts inaccessible. Tried a walk through test...

Dear all, We are having a problem with our house alarm, as follows: On setting the alarm - Accenta G4, professionally fitted around 8 years ago - (when leaving the house), the main control panel is showing solid red lights on two of the PIR sensors ('as if' they are sensing movement in the...