Help! I had to turn off the power to my house to do some electrical work. My Veritas alarm went off for about 10 mins then stopped, i guess the battery ran flat. When i turned the powerback on, all the leds on the control panel were lit for about 5 mins with a beeping noise then the alarm sounded again and i couldnt stop it. I have had to take the main fuse out to disable it. Any advice would be greatly appreciated.