Hi, we have this unit in our small office building, which was fine for around a year and a half, then we started getting tampers on multiple zones whilst here in the day. Our service company applied some filters etc to prevent elec. spikes but the problem continued. Then they replaced the control panel as they thought it was faulty, but the problems remained.

They then fitted some more filters etc to rule out rf interferance, problem still remains....

So, not sure how to resolve this. The tamper fault occurs seemingly randomly, and we are getting it few times per week. I am able to reset this using our fobs, ( which I thought you couldnt do if it was a real tamper?).

The only thing that has changed in the building was that the mains supply to the unit was moved to a different breaker in our distribution panel, and we have had a couple of Occupancy switches (PIR light switches) fitted to a couple of rooms.

Help!

It might be getting some spiking from those but if they've fitted a filter on the mains supply then this shouldn't be a problem but if they've fitted the filters else where to the system that could be the problem.

I'd check to see where the filtering is.

Think about any other work that has been done at the property, especially any work that was done around the time the problems started - could be that it's not panel or power related and might be cable related.

Wonder if they got a MSPSU on the system on a different phase to the panel? (its a fancy power pack with an expander built in).

Tried putting unit (panel?, PSU?) back on the original mains cct?

9853 = reliable workhorse imo.

May i ask what zone numbers this is on?

Panel 1-16 or the expanders 17+

one or the other or both?

You say small office so i'd presume 1-16

Because the plug on zone plugs on the 9853 are terrible

they were always great on the other/older models that had them but this model has had problems

We have about 100-120 ish out there and we have had quite a few visits back to random tampers on this model

One particular job had quite a few so we swapped the plugs for some from a old 9100 panel and it sorted it.

if its a modern install then no you shouldnt be able to reset yourself.

the plug on zone plugs on the 9853 are terrible

they were always great on the other/older models that had them but this model has had problems

we have had quite a few visits back to random tampers on this model

One particular job had quite a few so we swapped the plugs for some from a old 9100 panel and it sorted it.

agreed

scantronic sent us replacement blocks to use so we could replace those that were faulty and seemed to do the trick,

havent been back since, for the same problem anyway

Hi thanks for replys.

There has been no building works to affect wiring, the zones are all within 1-16. What is strange is that it is almost always a tamper on 8 zones all at the same time. I thought that if there were to be a cabling fault it would only affect 1 particular zone and would be easily identifiable?

It does sound like a problem with the terminal blocks but I am puzzled why this should only show up after a year. Although I have only experienced the problem on Menvier panels (same manufacturer) it has occured very quickly after installation and resolved after panel replacement or change of terminal block.

Hi, we have this unit in our small office building, which was fine for around a year and a half, then we started getting tampers on multiple zones whilst here in the day. Our service company applied some filters etc to prevent elec. spikes but the problem continued. Then they replaced the control panel as they thought it was faulty, but the problems remained.

They then fitted some more filters etc to rule out rf interferance, problem still remains....

So, not sure how to resolve this. The tamper fault occurs seemingly randomly, and we are getting it few times per week. I am able to reset this using our fobs, ( which I thought you couldnt do if it was a real tamper?).

The only thing that has changed in the building was that the mains supply to the unit was moved to a different breaker in our distribution panel, and we have had a couple of Occupancy switches (PIR light switches) fitted to a couple of rooms.

Help!

Hi,

I had the very same problems with two of my 9853's, However the problems were easily sorted when the Area Rep provided me with replacement chips and a chip puller. If you still have this problem its worth checking the Software version on the chip. Up to date version is 13+ i think.