Ok, so like a dingbat I removed the front of the main control box, not realising that there was a tamper alarm that was activated, requiring me to turn off the alarm using the control panel. I'm a wally. But now the display on the control panel says "UNSET ALARMS.......T" with the 'T' flashing. I can't remove the message despite typing in my 4-digit PIN or pressing RESET. Any ideas what I can do?