27
7.
Troubleshooting
Problem
Cause
Help
Lock does not unlock
• Missing or faulty power
supply (measure 24 V)
• There must be at least 21.5 V
DC at the lock.
Check that the power supply
unit, fuse and cable cross-
sections are sufficiently sized
and replace if necessary
• No + 24 V control signal
• Check control input
(Pin 9/pink)
• Mechanically blocked
-door leaf or door frame is
twisted or warped.
-latch is jamming
-the hardware screws are
pressing on the lock case
• Check door leaf/frame
• Align or adjust latch striker
correctly
• Check hardware screws,
shorten if necessary
• If the latch is jammed
(motor under short-circuit
conditions), the lock does
not respond to control
signals for 20 s
• The lock is in programming
mode
• Exit or abort programming
mode (see point 6)
• Profile cylinder actuated
• Remove the key
• Check the cam position when
removing the key (see point
3.3)
INFO:
if the cylinder is operated when the motor is in operation,
the lock switches to overload protection and does not respond
to control signals for 20 s!
Latchbolt remains in the lock
• No power supply, power
failure in the event of motor-
driven daytime release
• There must be at least
21.5 V DC at the lock
Check that the power supply
unit, fuse and cable cross-
sections are sufficiently sized
and replace if necessary.
• Actuate lock via profile
cylinder
• A voltage of 24 Vis
permanently applied on the
control line
• Check control signal;
deactivate daytime release
(see point 3.5)
• Mechanically blocked
• See point "Lock does not
unlock"
• Profile cylinder actuated
• Remove the key
• Lever handle permanently
actuated (follower)
• Check hardware
