How can I de-activate my house alarm?

You did, but he obviously knows best so I thought I'd just clarify what you wrote, in simple English

acorn
March 2012

thought i said that acorn ?

gts
March 2012

Mains supply - Off

Control panel battery - Flat / dead

Outside sounder not getting any power from the control panel, it's sounding on its own battery.

acorn
March 2012

Thanks gts, I'm now a little confused though. is the system linked to the mains or is it linked to the battery source within the contol box (I'm not sure if this is just a backup). If its mains contolled why have the LED's not lit up when the mains power has been restored. I've changed the 1amp fuse within the control box without success

TonyH
March 2012

the bell box has its own battery,if all power fails it thinks its being attacked,so it sets itself off,it will continue to sound till the battery runs our,or,the power is restored

gts
March 2012