Door closes and re opens over and over

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Answer
A 4600 (4630/4640) not opening to a full 90 degrees could be caused by a couple things: The Opening Force could be set too low. Try increasing the opening force adjustment on the controller a 1/...
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...
       "Opening Force" adjustment could be set to strong (high).  This adjustment is a turn pot adjustment which can be found on the controller.  Try adjusti...
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...
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 a door is being held open by the LCN SEM 7800/1900 magnet or any ME/SE Series Sentronic LCN closer, you can remotely release that door to close by ordering the following parts and wi...