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night latch not working
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RELATED FAQS
Question
Answer
Can the credential reader be changed on a CO-Series lockset?
Resolution:
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 Hand Held Device (HHD) or Schlage Utility Software (SUS) will not connect to the CO200?
Resolution:
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...:
How do you convert the 914KIL trim to NL function?
Resolution:
The KIL Instructions will show you how to convert trim to Night Latch(NL) function.:
How do I program Locknetics CM / CL legacy locks with the Schlage Utility Software (SUS) and Hand Held Device (HHD)?
Resolution:
- With the CIP NOT inserted and the Schlage Utility Software (SUS) running o Enter the Master Programming PIN or Present Loc...:
Can the 8200 Series operator power a electric strike?
Resolution:
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.:
Explain the holdback feature for the B250.
Resolution:
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 key just spins on a B560R B561R or B563R deadbolt.
Resolution:
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...:
Is there a thick door kit for the B500 deadbolt?
Resolution:
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 orderedDoor thickness greater than 2 1/4" will require...:
How do you convert the Von Duprin 370 series controls to NL or night latch function?
Resolution:
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...:
What process should be followed to change the Credential Reader type on a AD-Series lock?
Resolution:
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...:
What is the minimum and maximum door thickness for the AD and CO series locks?
Resolution:
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...:
NIGHT LATCH (OPTIONAL PULL)
Resolution:
NL-OP, Night Latch Cylinder Assembly - Optional Pull, Optional Pull:
Can I have multiple Hand Held Devices (HHD) coupled to the same lock?
Resolution:
The Coupling Password is compared whenever an HHD is trying to adjust lock configuration settings or downloading door programming files.:
Will the Von Duprin 6210 electric strike operate with the MA series locks?
Resolution:
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...:
NIGHT LATCH
Resolution:
NL, Night Latch (key retracts latchbolt,), Key Retracts Latchbolt (Nightlatch):
Can Von Duprin QEL/EL and CX be in the same device?
Resolution:
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 ...:
Why doesn't full rotation of the AD or CO Series Exit Trim (993) outside lever fully retract the Von Duprin 98/99 Exit Device latch?
Resolution:
- 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 ...:
What does NLOP mean on 98NLOP?
Resolution:
NLOP means Night latch optional pull (night latch cylinder assembly with pull by others).:
What is the difference between Night Latch (NL) and Class Room function?
Resolution:
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...:
Will the old T Series chassis work with the new T latch?
Resolution:
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 ...:
How do you change the 360L to NL function?
Resolution:
To change the 360L from TL (classroom) to NL (Night Latch) function invert the cam on the mortise cylinder. :
Why would the 996L trim not lock or unlock when installed with 98 or 99EO?
Resolution:
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...:
Why did my CO Lock stop working after the Reader Module (electronics) was changed?
Resolution:
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...:
EXIT FUNCTION 09
Resolution:
L-NL, Lever Night Latch (BHMA Exit Function):
How do I change the function of the Von Duprin 7500 mortise lock from Lever ( classroom ) to NL ( night latch )?
Resolution:
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...:
What cylinder is used for the Von Duprin -2 double cylinder function?
Resolution:
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&n...:
EXIT FUNCTION 13
Resolution:
NL, Night Latch Function (BHMA Exit Function):
What is a deadbolt?
Resolution:
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...:
Does the Von Duprin E996L trim require the NL drive screw be installed into the device to function properly?
Resolution:
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...:
Can the Von Duprin WS98/9927 exit device be operated as Night Latch function?
Resolution:
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...:
Can you add double cylinder to an existing 99 rim device?
Resolution:
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...:
Does Von Duprin offer an NL or NL-OP function with the 8827 exit device?
Resolution:
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. :
EXIT FUNCTION 06
Resolution:
TP-NL, Thumbpiece Night Latch Function (BHMA Exit Function):
Can the Von Duprin 230L trim be converted to a Night Latch function?
Resolution:
We do not offer the 230L with night latch function. There is no conversion available. :
Will the 25-C series rods and latches work on the old 18-C?
Resolution:
The internal rods and latches for the 25-C carried over from the older 18-C device so they can be used interchangeably.:
Is E9975L-NL-F a valid configuration?
Resolution:
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...:
EXIT FUNCTION 12
Resolution:
T-NL, Thumbturn Night Latch Function (BHMA Exit Function):
How can the Von Duprin 98/9975-L with 996L classroom trim function be converted as a night latch function in field?
Resolution:
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 se...:
Will the new T Series chassis work with the old T latch?
Resolution:
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.:
What will happen if the voltage on an L lock goes above the 26V maximum range?
Resolution:
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...:
EXIT FUNCTION 03
Resolution:
NL, Night Latch Function (BHMA Exit Function):
How do I convert the Von Duprin 360L control from nightlatch to classroom function?
Resolution:
To convert the Von Duprin 360L/TL from nightlatch to classroom or from classroom to nightlatch invert mortise cylinder cam.:
Does the backset extension link work with a 2 3/8" latch or a 2 3/4" latch?
Resolution:
A and AL product: Must use the 2 3/8" backset with the 41-005 extension link D Knob and ND product: Must use the 2 3/4" backset with the 43-005 extension link:
Will the 18-V top latch work with a 25-V device?
Resolution:
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):
What is the low battery threshold for the AD and CO Locks?
Resolution:
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...:
Will the 6210 work with the Best 45H? If not is there another electric strike that is compatible.
Resolution:
***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...:
Can an 18-R-L be converted to L-NL function in the field?
Resolution:
Follow step 6 of the 18-R instructions to convert trim function to Night Latch(L-NL).:
Why does the QEL cycle 3 times with a solid red led and does not work?
Resolution:
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...:
How do you change the Von Duprin 990TP trim to NL function?
Resolution:
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...: