How do you stop a Optima XM alarm screeching after a power cut?
We have a 16 year old Optima XM alarm systems and after a very short power cut the outside alarm box started to screech. How can we stop it? The alarms itself appears to be working fine, able to set and unset as usual. So far we have disconnected mains and batter power but the alarm is still going.
Can you help?
Kevin. P, January 2009
