alarm sounding when armed

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Answer
Chexit devices shipped with motor after 8-24-2015. 1. When Chexit device is set for more than zero second rearm time (factory setting is 10 second rearm time) and device goes into alarm immediatel...
Chexit devices shipped with solenoid prior to 8-24-2015. 1.  When Chexit device  is set for more than zero second rearm time (factory setting is 10 second rearm time) and device goes...
If the Chexit device shipped prior to 8-24-2015  is not adjusted correctly ( Check vertical rod or Mortise finger) without using the door position switch and nuisance delay is&n...
 
As long as there is no door position switch involved the outside trim will work as it would on a standard 98/9975 device. 
The following may cause the ALK to go into alarm: Make sure red and blue wires on the RX switch are connected to the exit alarm ALK terminal block and yellow wire is taped off. Check the red an...
Chexit devices shipped prior to 8-24-2015 with solenoid driven could cause the Von Duprin CX solenoid to pull and drop and sound the alarm with solid LED or no LED light after the rear...
Followings are the reason for 98/99 exit alarm ALK not sound when push bar is activated. Make sure key switch on exit alarm ALK is turned on, wait for 20 seconds before you activating the pushba...
The Von Duprin Chexit device will not automatically rearm itself after a fire alarm clears.  After a Fire Alarm has triggered the Von Duprin Chexit device, the device must be manually reset&nb...