Help with intruder alarm

[jamesabean@xxxxxxxxx]

Hi,

I would like some advice / help with my intruder alarm.

I recently bought a house and it already had an intruder alarm system
installed.

The instruction manual was provide by the seller and they told me a
code to set / unset it.

I followed the instructions to change the code but now the old code and
what I believe i set as the new code do not appear to be working.

I do not believe there is any maintenance contract for the system.

What is the easiest way to get the system unlocked or reset so i can
set up a new code and get it working again.

any help appreciated