Troubleshooting - G-U B-2156 Serie Manual De Instrucciones

9.

Troubleshooting

Error description
Lock does not unlock.
Latchbolt remains in the lock.
Lock unlocks automatically.
Cause
„ Missing or faulty power
supply.
„ No +24 V control signal.
„ Mechanically blocked
– Door leaf or door frame
is twisted or warped
– Latch is jamming
– The hardware screws are
pressing on the lock case
„ The lock is in programming
mode.
„ No power supply, power
failure in the event of
motor-driven daytime
release.
„ A voltage of 24 V is
permanently applied on the
control line.
„ Mechanically blocked.
„ Profile cylinder actuated.
„ Lever handle permanently
actuated (follower).
„ Door contact is defective or
not connected.
Remedy
„ The lock must be supplied
with at least 21.6 V DC.
Check that the power
supply unit, fuse and
cable cross-sections are
sufficiently sized and
replace if necessary.
„ Check control input
(Pin 09/pink).
„ Check door leaf/frame.
„ Align or adjust latch striker
correctly.
„ Check hardware screws,
shorten if necessary.
„ End programming mode by
operating the key 3 times
(see Chapter 6).
„ The lock must be supplied
with at least 21.6 V DC.
Check that the power
supply unit, fuse and
cable cross-sections are
sufficiently sized and
replace if necessary.
„ Operate the lock as locking
cylinder.
„ Check control signal,
deactivate the daytime
release (see Chapter 7.7).
„ See error description "Lock
does not unlock".
„ Remove the key.
„ Check hardware.
„ Check door contact or
wiring (see Chapter 4).
59