Thanks sparkymarka...... just removed the sensors from both doors, given them a clean and put back on...... fully functioning again :)
I really should look for an engineer in Doncaster to come and service it.
Thanks again
I have the above alarm installed, over the last couple of days when entering the house through zone 1 the alarm isn't sounding despite being armed :?
I have also noticed this morning when setting the alarm to leave that zone 2 (for the back door) wasn't illuminated....
Any ideas before I...