how can i stop the house alarm from ringing ?

Enter the security code usually 4 digits and press reset
then type the 4 digits again to clear the alarms and put in 'Day' Mode. If you do not know the security code you can usualy reset the sysetem to the factory default secuirty of 0123 as set out in the engineers install manual. You can get most manuals on the internt for £2.50 and some for free try
http://www.norbain.co.uk/support//manuals/ref:M40F3A2E4EA120/

John Churchill
February 2009