The arm may have been installed wrong. To reinstall the arm, remove from spindle and put rocker switch to hold open. Put door at 90 degrees to frame and reinstall the arm as per instructions.
You may also have a cam orientation issue on top of the motor gear box where the back check and latch limit switches are controlled. Follow the chart below to re-position cam:
Detex Corporation is proud to announce that it has received the Outstanding Manufacturing Mentor Award…
There are four basic types of standard hinges: full mortise, half mortise, full surface and…
New Braunfels, TX — Detex Corporation is honored to announce its nomination for the Outstanding…
Regular door hardware maintenance is essential for ensuring safety, security, and compliance with building codes.…
If there are wires landed on the J2 fire loop, check the LED2. If it…