wired alarm?

if its a surface contact make sure the magnet hasnt dropped out while fitting, try putting the chime on that day to test, other wise recheck wiring connections

foot
July 2009

Sam you may have a contact that has a line down the middle, these lines have to be exact when you fit otherwise you will have a fault. Check that they do line up. There is a distance issue with contacts, normally 15 mm operating gap max,
J 07842 480037

J
July 2009