Hi guys, my alarm was working perfectly until a few years ago one of my dogs chomped through a wire, instantly all the pirs stopped working, but the front door chime remained working. Anyway as i had two big dogs i rarely used it so didnt bother trying to fix it at this point. Now i no longer have the dogs, so i set about trying to fix it, first thing i did was cut out the wire section that had been bitten and spliced in a new piece. By now id forgot the code so i did the wire link up thing to reset the nvm. upon power back up the keypad was unresponsive so googled it and a lot of people saying replace battery, So i fitted a new battery and replaced a fuse that had blown in there. Powered it all up and it sprung back to life and was ready to go. it sets ok but the alarm triggers straight away, as it seems the pir sensors are flashing randomly with no one in the room, if i put any of them on chime they trigger randomly it seems. the pir in the garage seems to almost be permanently lit only going off occasionaly!
Any ideas on what to check next guys???