Possible causes
• The IR beams have been interrupted for the pre-set period of time with the Ambush Alarm feature enabled
• Inadvertent activation of the Ambush Alarm feature
Solutions
• Clear any obstruction from the path of the beams
• If the lenses are unobstructed, check the wiring between the beams and the controller
• Ensure that the wiring of the beams are correct
• Ensure that the beams are properly aligned
• If not required, disable the Ambush Alarm feature in Menu 6: IR Beams