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The valve on the back of a 4041/4040XP closer is a "Back Check Selector Valve" that needs to be turned in on "Parallel Arm" mount applications ONLY. If a 4041/4040XP closer mounted "Top Jamb", or "...
This method is only available before the first network communication between an Access Control Panel (ACP) and the lock. Do a Level 1 and Level 2 Factory Default Reset (FDR) to remove any previ...
Manually Setting the RS-485 Address This method is only available before the first network communication between an Access Control Panel (ACP) and the lock. Do a Level 1 and Level 2 Factory De...
Chexit devices shipped after 8-24-2015 with motor driven:If two pin REX connector cable is plugged into the Chexit module and Module REX LED is OFF, the RX switch is defective and needs to be repla...
Chexit devices shipped prior to 8-24-2015 with solenoid driven:If Chexit device goes into alarm with fast flashing red LED after the rearm time, the RX switch may be out of adjustment or defective....
If the  AD300  power is not correctly connected it may not communicate or other wise function correctly.The AD-Series locks must be hard wire powered through the comm board. It is not com...
A biometric F-Series hand reader usually comes with standard user memory.  When a user is added that exceeds that user memory size, there is no room left to store that user and that user template c...
How to:  What are the steps to adjust a door closer?Facts: All LCN and FALCON door closers will have 3 regulating valves and a spring adjustment.  All closers with a "Delay" feature ...