The electricity in our area went off for two hours, when it went off our alarm went off, I put my code in but the alarm would not stop, I put the code in again but it still would not stop. I opened the main box and dissconected the battery and the alarm was silenced. When the electricity came back on the alarm went off again, I entered my code but the alarm would not stop, I reconnected the battery and closed the door of the main box but that made no difference, finally I have had to disconect the battery and the mains circuit on which the alarm is fed to silence the alarm. Can you please help?

John Boewes, October 2007

Thank you for the information re user code and engineers code, I have been able to fix the alarm. I have also changed the battery as I believe that is what caused the trouble when the mains electricity went of.
I am on the pension and your help has saved me a call out charge which are quite substancial out of the o.a.p.
Thanks again,
John Bowes

John Bowes, October 2007

John mate,
Sounds to me like your alarm has reverted back to factory settings!
Here are the the factory codes

user code 4321
engineer code 1234

Hope this helps

john, October 2007