Service manual

Troubleshooting
3–10 V Series Service Manual
Door is always unlocked. a. Controller may be in a door
unlock mode or passage mode.
Setting the door mode to
“Door unlock” means that
anyone can access the door in
this condition.
a. Use the handheld terminal to check the door
mode. If desired, change the door mode.
b. Controller may be in a door
unlock time zone.
b. Use the handheld terminal to check the door
mode and time zone settings.
c. Locking device may not be
connected properly.
c. Check the connections.
Cannot plug the handheld
terminal connector into the
controller’s communications
port.
a. Foreign object is jammed in
the communications port.
a. Clear the object from the communications
port.
b. Communications port is
damaged.
b. Replace the communications port.
LEDs Sounder Access Possible causes include… You should…