lacth does not drop in

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If your Von Duprin EL (solenoid) device pulls and releases quickly instead of holding the latch retracted, please check all of the items below.In most cases, one or more of these solutions will r...
Check the adjustment and if this does not resolve then you may possibly have a defective center case or bottom latch.
The spring in the hinge case or end case assembly lifts the crossbar and both lever arms.  If broken, the crossbar and lever arms will drop down. The weight of the crossbar and levers will automati...
Microsoft Windows 8, 7, Vista, and XP: Home, Basic, and Starter versions are not compatible with Schlage Express. What versions of Microsoft Windows are compatible with Schlage Express v...
For Motor driven Chexit devices shipped from the factory after 8-24-2015, the Chexit Secure Relay Contacts( white and violet wires) change state to signal the device is not secure. Check the f...
For Solenoid driven Chexit devices shipped from the factory prior to 8-24-2015, the following could cause the device not to provide delay egress:Measure the voltage between green and orange wires o...
The following could cause the Von Duprin CX solenoid ( devices shipped prior to 8-24-2015) to pull and drop and sound the alarm with solid LED light. Wrong power supply, requires Von Duprin ...
The following could cause the Chexit solenoid ( devices shipped prior to 8-24-2015) pulls in then drop out with no alarm. Mechanical adjustment such as vertical rods. Disconnect t...
See image, ANSI A115.1 Mortise Lock PrepThis door prep requires the N escutcheon with the L283-029 spacer kit to keep the springcage from falling into the door.  Spacer kits are...
The top rod is required for proper operation.  The top latch controls both the top & bottom rods and without the top latch/rod the bottom latch would release when pushpad or trim was used but then ...
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...