Background:

I replaced an old ADT panel with a Honeywell Home PROA7PLUS. Also installed at same time a PROSIXC2W to pick up all the wired sensors that were connected directly to the ADT panel. Installation was easy and no issues. System was installed by myself and is professionally monitored.

Issue:

It’s been about 6 months now since the install. Over the last couple of months, there have been random sensor open incidents where the panel would beep ‘Back door open’ though the back door was never opened. This occurred once in the middle of the night when the system was armed and of course set of the sirens which you can imagine scared the crap out me. Also the alarm company received a signal and called.

Ever since that night, the same sensor would again randomly signal open again and sometimes in rapid fire succession with no actual door being opened. This has been ongoing and at random times, no rhyme or reason to it. I pulled the sensor apart, checked the connections and distance between sensor and magnet, all seemed fine. But now, other wired sensors are doing the same thing… random open events without the door or window being opened. First was the back door, then front window, now front door. It is random and I cannot do anything to manually reproduce. Actually opening the doors and windows does trigger as expected. Yesterday, just sitting in the living room, panel blares out ‘Front Door Open’. I can see the front door and of course it was not opened.

Obviously I cannot arm the system because of this so it is useless at this point as just one of those random triggers will cause the alarm to go off and monitoring company called. If I am at home, it’s a nuisance during the day and scary as $hit in the middle of the night. If I am away no idea if false alarm or not.

These wired sensors are the original sensors installed during home construction, hidden in the doors and windows. I have only moved the wiring from ADT panel to the PROSIXC2W. This never happened with the ADT panel (vista 20p). Any suggestions on what could be the issue? It’s only the wired sensors that do this and they are all connected to the PROSIXC2W. The wireless sensors all work with no issue. Could I have a bad PROSIXC2W ? How can I check? Any help would be appreciated. This is crazy!!