Deltaseven - there's some horror stories there eh?!

Have you checked the screen for continuity end to end?

Deltaseven - there's some horror stories there eh?!

Have you checked the screen for continuity end to end?

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That is something I haven't thought of. Will do on the next visit.

As for RF interference, I have checked with the ACT Zap Checker, which barely flickers over the whole site, so if there is interference, it is not there at the same time as me (having said that, the system is completeley stable when I am on site!!!

I think it may be worth replacing the NVM when next on site too - if I can get one by then.

Thanks for all advice - will let you know the outcome!

D7

could try ACT4425 iD Line Filter with removed twin biscuit faults on my euro meridan last month?

could try ACT4425 iD Line Filter with removed twin biscuit faults on my euro meridan last month?

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So, not having found a fault, I left both lines disconnected for 10 mins to run down any induced a/c or capacitance, then reconnected with ACT ID line filters

29320[/snapback]

Already tried that one!! Have not heard from customer since I left site on Friday, so am keeping my fingers crossed (but I am not that hopefull)

Its a pity you didnt have the luxury of just removing ID wiring completly and inserting one biscuit straight into the connections of the panel and leaving it armed on that one buscuit to see what happens to rule out the panel.

Obviously you could only do this as a bench test ONLY - as the customer wouldnt have any alarm in the meantime - so in your situation Im not sure what else you could try.

I would have thought it was more likely the panel had a fault rather than the NVM as you suggested though.

Ive tried NVM chip changes in the past on menvier and it turned out to be the panel itself

I would have thought it was more likely the panel had a fault rather than the NVM as you suggested though.

Ive tried NVM chip changes in the past on menvier and it turned out to be the panel itself

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It does seem a bit hopeful that the NVM is at fault, but we do know that the logs (which are stored on the NVM) are corrupt, so it is not out of the question. And the NVM is only a few pounds as opposed to a new panel...

Still (I may be speaking too soon here), I've not heard from customer since Friday morning...

D7

Good man - I hope its ok mate, fingers crossed