Why does the reader continuously beep when the door is buzzed open?

If the reader continuously beeps when the door is buzzed open, it likely is caused by incorrect wiring. 

Verify the LED and BZR (buzzer/beeper) wiring from the proximity reader to the controller or expansion terminals are correct. It is likely these wires have been swapped and need to be reversed.

If the wiring is verified and correct, contact your service provider or manufacturer of the proximity reader.