QEL keeps pulling and releasing

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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...
Following could cause the EL device to pull and drop repeatedly.  Short to ground  on EL wiring.  Incorrect wire gauge used.  For wire run and gauge requirements, click HERE  Wrong power suppl...
The following could cause the QEL device to retract and release repeatedly: If this is a vertical rod type device, the vertical rods could be adjusted too short. Check rods for dead locking, ...
You may have a defective motor bracket, defective base plate or vertical rod could be out of adjustment.