Upon powering the Aritech Horizon CP35 alarm panel, both the internal buzzer & external buzzer go off. On entering the code only the internal alarm goes off and the display reads a 'flashing' 7 which according to the manual is a fault condition and to contact the supplier. Can you please let me know how to reset this fault?

Thanks

Joe, May 2012

Failure to silence after a reset needs the attention of a certified engineer!.......good old smokey.

e manno, May 2012

When was it last serviced/battery changed?

And did it continue to ring outside once ALL power was removed?

Alarm, May 2012

Because the external alarm was activated and wouldn't reset.

Joe, May 2012

Why was it down powered?

Alarm, May 2012