faulty alarm

Hi, I have a Texecom Premier Elite 64. Its been working fine for the last couple of years but starting a few days ago, when I try to set the alarm - it fails to arm; keeps beeping; and I get a the following message on the keypad: Landing Motion Detctor There is no other "System Alert"...

I have just moved into a house with the above alarm. Following a power cut the keypads are emitting a constant tone, which I cannot stop. I have replaced the backup battery but still cannot stop the noise. The code will not work and I do not know what to do next, can anyone help?

Hi folks Looking for some help. We have an old alarm above, does what's required when we are away, I have the user, master and engineer codes to use when needed. We had a decorator in today and he pulled the wire out one of the PIRs by mistake, and it must have registered some kind of...