TEL-EK12 12" Upper Extension for TEL-300 for Over Height Doors
Problem:
Alarm sounds when key is removed when arming the alarm.
Common Causes:
Less common cause:
Troubleshooting:
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Please note: Did you secure the tamper screw at the bottom of the alarm box after replacing the batteries? as seen here:
View Image
It’s the most common cause of the alarm continuously sounding when arming the alarm. The tamper screw depresses a tamper switch when the lid is shut. Here’s a view of where the screw depresses the switch. Image describing this is here:
Please review and advise.