will not pull door shut

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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...
Both the ND50 and ND53 will not unlock when the door is shut.  The only way to pop the button is by turning the key on the outside or the lever on the inside.  Occasionally custome...
The Senior Swing has a built in circuit that controls closing speed through the motor. If the door is slamming, there must be a broken gear in the gearbox and the gearbox will need to be replaced.
Issue/Symptom – upon receiving an activation input the Sr Swing gearbox opens only about 10 degrees and then returns to the close position.  Unit will never learn opening nor function pro...
There is potential for ND40/ND44's manufactured around March 2011 to remain locked after egress, or after the latch is depressed.  There was an issue with the keycam that created a bind when l...
To correctly answer this question, we need to know how much more force is required to get the door closed. They could try turning the Rod & Shoe over (short side of shoe towards the hinge), or they...
First, turn off the power to the Senior Swing. If the door closes, check controller for a constant activation signal from an activation device. If door continues to hang up and will not close...
Hold Open Closers & Magnets (Fire/Life safety products) provide a wide range of solutions.  Single or multi-point hold open closers Utilize an electromechanical closer. Hold the door o...
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...