I have a HAI Omnipro 2 security system installed a few years ago. I recently started getting an intermittent "Glass Break Zone trouble" message. It clears within 1 minute. The frequency was every few days. Then for a few days it was either the glass break or a specific door contact zone which would fault and clear. I read the loop voltage on PC access and it was about 150 for those two zones. Other zones were 148-150. I was lucky once to have the software active when it faulted and the loop voltage got to 160-162 and then reset to 150 automatically. The last few times the fault has migrated to a window zone. At first I assumed that my problem was the old silicone filled connector since the first two zones are wired through the attic, and it has been hot in the south; but the new window zone is wired through the crawlspace where it is much cooler. I should also mentioned that the glass break and the door contact have not faulted in quite a few days. Any help would be really appreciated.