Hi there, new to forum and seeking some advice on our house alarm. Moved in circa 10 months ago, the house is fitted with an Intellisense Securit 800l system. We were given the keypad code by the previous owners but I could never set the system with the number they gave and was assured by them that number was correct. I suspected there may have been a fault with one of the digits on the keypad as understand this can be an issue. So I ordered and fitted a replacement (I'm a diy bodger). Thought if I entered previous code we would be good to go but not the case. Also tried initial set up code given in the manual, again no joy. I'm not expecting anyone to divulge closely guarded trade secrets, just wondering if it is something easily sorted by calling in the professionals? Any advice greatly appreciated. Cheers, Davy L.