night latch not working

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On power-up the CO-Series locksets will provide 5 quick RED Schlage Button flashes and 5 quick beeps to indicate that the electronics (credential reader) has been changed.  In order to recover...
When/If the electronics (Credential Reader) changed on a CO-Series lockset, the lock will respond with 3 RED Schlage button flashes and 3 beeps for any key press or credential presentation.&nb...
CO Reader Modules cannot be replaced by Reader Modules with a different credential type; for example, a magnetic swipe credential reader cannot be replaced with a proximity credential rea...
A Credential Reader MAY be replaced with another Credential Reader of the same type; however, a Factory Default Reset must be performed before the lock will function properly.
The 9550 series Senior Swing WILL NOT work on a pair of doors with auto flush bolts. The 9560 series Senior Swing and a sequence module are required when used on an pair of door with auto flush b...
Make sure the lock AA batteries are good. 4.8 VDC or higher.
When in its “Active state”, the mechanical key switch can prevent USB connection. Make sure the lock key cylinder and tailpiece are properly installed.
Make sure the mechanical triangles on the back of the outside escutcheon are aligned properly.  See the installation instructions at www.schlage.com/support Schlage Technical Support.&nbs...
If the Schlage Utility Software pops up a "E201 error", just ignore it, and tap "Device Options" or update your firmware. See 78451  
Make sure the HHD/SUS is set to USB communication by checking the small icon right of the "No Device Connected" message.  The symbol should be a USB symbol when working with USB enable product...
The KIL Instructions will show you how to convert trim to Night Latch(NL) function.
-         With the CIP NOT inserted and the Schlage Utility Software (SUS) running o   Enter the Master Programming PIN or Present Loc...
The 8200 Series operator CANNOT power a strike, maglock, or EL device. A separate power supply is ALWAYS required. There is an onboard relay to control a strike, maglock, or EL device.
The B250 Night Latch is a single cylinder deadlocking latchbolt where the latch is retracted by a key from the outside or by the inside thumbturn. Rotating the thumbturn and activating the hol...
The Schlage full size interchangeable core (FSIC) prepped B560F, B561F, and B563F deadbolts all require a UL fire cup (R) in order to be UL listed.  This fire cup is s...
B500 with standard cylinders How to order with the deadbolt: Door thickness over 1 3/4" to 2 1/4", specify door thickness when deadbolt is ordered Door thickness greater than 2 1/4" will req...
You must have the Von Duprin NL Cylinder plate part number 967484-89 to convert the 370 series controls from classroom function to night latch function. If new installation, use the NL cylinde...
The process to change the Credential Reader on an AD-Series lock is as follows: Note: To ensure firmware compatibility of the lock and reader, it is important that the firmware in the LOCK and the...
The minimum door thickness that the AD or CO series lock will mount on is 1 3/8".  Be advised that this will require additional spacers to be ordered separately to allow the lock to mount...
NL-OP, Night Latch Cylinder Assembly - Optional Pull, Optional Pull
Yes, several HHD's can be used with a single lock, as long as the HHD's have the same Coupling Password as the lock.
The HHD coupling password is set during the lock initialization, coupling process.
When the coupling password is changed the value is stored in the HHD and once coupled to a lock, the Coupling Password is also loaded in the lock/device memory.
The Coupling Password is compared whenever an HHD is trying to adjust lock configuration settings or downloading door programming files.
The Von Duprin 6210 electric strike was designed for retrofit applications and will not work with the Falcon MA series lock when strike and lock body are mounted at standard locations (centerline o...
NL, Night Latch (key retracts latchbolt,), Key Retracts Latchbolt (Nightlatch)
You can not use these options together on the same device per the following reasons: QEL/EL device retracts the latch bolt of the exit device allowing entry. CX (Chexit) device locks the p...
- AD Series and CO series products require that the Night Latch (NL) screw is installed in the exit device.  Be sure this screw is installed- Exit hardware and strike must be properly mounted ...
NLOP means Night latch optional pull (night latch cylinder assembly with pull by others).
Night Latch (NL)= key retracts the latch momentarily to allow entry. When key is removed, the latch will extend and locks the door (momentary unlock). Class Room (Lock/ Unlock)= key unlocks...
The new latch, introduced mid-June 2013, will NOT fit into the previous T lock chassis.  Customer are encouraged to order a new Falcon T lock.  If needed, customers can replace the older ...
To change the 360L from TL (classroom) to NL (Night Latch) function invert the cam on the mortise cylinder. See attached instruction. 360L Instruction
The 98/99 rim and vertical rod exit devices are shipped with NL drive screw to function as a Night Latch. To convert the device to Class Room, remove the NL Drive Screw on 98/99 center case ass...
CO Reader Modules are not individually replaceable, nor can they be swapped between locks. The inside and outside assemblies of a CO lock are a matched/mated set and cannot be swapped to change rea...
L-NL, Lever Night Latch (BHMA Exit Function)
To convert the Von Duprin 9975NL(Night Latch or Storeroom) to 9975L (Classroom) exit function follow these steps (Note: the mortise lock is shipped as Night Latch from the factory): Turn the NL ...
To convert the Von Duprin 9975L to 9975NL exit function follow these steps (Note: the mortise lock is shipped as Night Latch from the factory): Turn the NL screw on 7500 mortise lock counter clo...
The 98/99 rim device can be converted to double cylinder 98-2 or 99-2. Double cylinder features an inside key cylinder which locks or unlocks the outside trim (Classroom Function) and an outside c...
NL, Night Latch Function (BHMA Exit Function)
Deadbolt Locks (Deadlocks): a lock with a bolt which requires a deliberate action to extend and which resists end pressure in the unlocking direction when fully extended Medium, high to extra he...
Von Duprin 98/99 NL drive screw is located in back of the 98/99 center case assembly. NL drive screw should be left in with trim lock slide plate in up position in the 98/99 exit device with E99...
We do not offer a true night latch, storeroom or ANSI "03" function with this device. (Entrance by trim when latchbolt is retracted by key. Key removable only when locked.) This function would da...
Changes to the Falcon W501 latch offering were made on 2/13/2012.   Prior to 2/13/2012: The W501 entry lock was supplied with a restoring latch which causes the button to pop and unlock...
The 98/99 rim device can be converted to double cylinder 98-2 or 99-2. Double cylinder features an inside key cylinder which locks or unlocks the outside trim (Classroom Function) and an outside...
This option is not available as there is no NL cam to directly drive the rods and using a key to lift the heavy stainless, brass or bronze rods would damage the key. 
TP-NL, Thumbpiece Night Latch Function (BHMA Exit Function)
We do not offer the 230L with night latch function. There is no conversion available.
The internal rods and latches for the 25-C carried over from the older 18-C device so they can be used interchangeably.
No, the E option (electric locking/unlocking of the mortise lock body) requires a functional L, TP, or K trim, but the cylinder would operate in a night latch function as desired.   Order E9975L/TP...
T-NL, Thumbturn Night Latch Function (BHMA Exit Function)
The following steps are required to convert the Von Duprin 98/9975L from classroom to night latch function: Order new 996L-NL-M trim and reset NL drive screw in mortise lockbody as set from...
The new chassis, introduced in mid-June 2013, is fully compatible with the previous style latch and the new one launched at the same time.
Applies to L9090EL/EU, L9091EL/EU, L9092EL/EU, L9093EL/EU, L9094EL/EU, L9095EL/EUOvervoltage will cause the lock to shut down for approximately 5 minutes to allow the circu...
NL, Night Latch Function (BHMA Exit Function)
To convert the Von Duprin 360L/TL from nightlatch to classroom or from classroom to nightlatch invert mortise cylinder cam.
A and AL product: Must use the 2 3/8" backset with the 41-005 extension linkD Knob and ND product: Must use the 2 3/4" backset with the 43-005 extension link
Yes, the top latch for the 25-V carried over from the 18-V device. Surface vertical rod top latch = part #650389 or #650375(fire rated)
Information on low battery threshold and nuisance delay is noted below: New firmware now has improved levels. - These are approximate values/levels which change with measurement meters and measure...
AD400/AD200/AD250 After ADFwPkg 2.17.0 - June 2011 4 Battery Holder New batteries = 6.2 VDC Low battery threshold is 4.7 VDC for SM & MT - and 3.7 VDC for MAG and PROX (USB stops working at 4...
    AD400/AD200/AD250 After ADFwPkg 2.17.0 - June 2011 8 Battery Holder New batteries = 12.4 VDC Low battery threshold is 7.2 VDC Critical battery threshold is 6.9 VDC Coin cell = new/...
CO2004 Battery Holder (ONLY) New batteries = 6.2 VDC Low battery threshold is 4.2 VDC Critical battery threshold is 3.9 VDC Coin cell = new/full is 3.0 VDC, low is 2.8 VDC
CO2504 Battery Holder (ONLY) New batteries = 6.2 VDC Low battery threshold is 4.2 VDC Critical battery threshold is 3.9 VDC Coin cell = new/full is 3.0 VDC, low is 2.8 VDC
  CO200 & CO250 Disable coin cell Nuisance delay and blink, With CO.A.7 and SUS 4.10.2 or newer for CO200 and CO250, you can use the SUS/HHD, under Lock Properties, Edit, to de-select, DISABLE, t...
***The 6210 electric strike was designed to replace mechanical strikes in existing openings when access control is desired.*** Note: The Best 40H series lock is not listed on the 6210 electric s...
Follow step 6 of the 18-R instructions to convert trim function to Night Latch(L-NL).
Applies to L9090EL/EU, L9091EL/EU, L9092EL/EU, L9093EL/EU, L9094EL/EU, L9095EL/EUThe Schlage electrified L-Series wiring diagram can be found here and the re...
Applies to L9080EL/EU. L9082EL/EU (Discontinued)The Schlage electrified L-Series wiring diagram can be found here and the requirements are listed below. 24VAC or 24VDC (maximum 26V, ...
Click here to show the differences of an installed lockcase between the L9090, L9091, L9092, L9093, L9094, L9095 EL/EU and the L9080 EL/EU
Improper mechanical adjustment or QEL calibration could cause the QEL cycle three times with solid LED and not work. First check mechanical adjustment on vertical rods or mortise lock device and co...
Recommend to order a new 990NL-R/V or M trim to change from TP/Classroom function to NL/Storeroom function. You will also need to reinstall the NL drive screw back into into the mast...