door slams open

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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.
The Falcon 8200 Series operator will allow the door to slam if: The motor is not connected (plugged into) the controller as the closing speed is controlled by a circuit on the controller. The mo...
There are a few things that can cause a closer to slam. The closer could be adjusted incorrectly. Turn all regulating screws clockwise until they stop. Then open each valve 1 and 1/2 turns. If t...
How to:  What are the steps to adjust a door closer?Facts: All LCN and FALCON door closers will have 3 regulating valves and a spring adjustment.  All closers with a "Delay" feature ...
The regulation valves are designed to adjust the flow the hydraulic fluid in the closer which regulates the door closing speed through various phases of the closing cycle. The regulation valves h...
A Chexit device could arm when the door is open but door may not close to secure the door unless a Door Position Switch (DPS) is connected to the device then the device goes into alarm after rearm ...
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 wiring per ST ...