Thanks. I've defaulted the system, which has reset codes (incl. Engineer), but now has "tamper" on display. Will investigate further when I get chance.
Hi, my daughter has just moved into a house that had the fuse pulled to the control unit. When I reapplied power I got a constant bleeping and "low bat" on the display. I've replaced the battery and the panel has "unset" and a date of 1 Jan (the chime works on the front door sensor)...