I am unable to set my alarm. The control panel lights look normal but when I enter my code, the beeps are normal but nothing happens. I tried to go into programming mode but again it just returns to day mode. I tried switching off the mains voltage and the alarm sounded outside, but when I powered up again and entered my code, I was back to square one.
Has anybody got any ideas please?

Brian Williams, May 2018

Problem solved. We'd had a thunderstorm which resulted in the panel returning to it's default code. Thanks - panic over.

Brian Williams, May 2018