Hi, wonder if you could confirm my thoughts please.
My daughter is abroad on holiday at the moment and I received a call from her saying her neighbour had just called to let her know that her alarm was going off, By the time I got to her house and the sounder had stopped but the strobe was still flashing outside. I went in and entered the code, the keypad was showing tamper but no zones were lit, on further inspection the downstairs RCD had tripped and the green light on the control panel was flashing, so running just on the battery. I turned on the RCD and cleared the tamper but left the alarm unset for the moment, not wanting to upset the neighbours again.
The power could have been off for several days and I guess it's probably just the battery in the panel running down and needs replacing.
Thanks, Pete