Troubleshooting; Reset; Simple Reset - Häfele DT 600c Instructions D'utilisation

11. Troubleshooting

Fault when opening
Acoustic signal is heard
twice.
LED does not change
from red to blue.
Acoustic signal is heard
three times.
Red and blue LED each
flash three times
alternately.
Red and blue LED flash
twice in succession, each
three times in turn.
Acoustic signal is heard
three times each.
If the faults cannot be remedied, contact your responsible DIALOCK technician or visit
www.hafele.com.

12. Reset

A reset is required for maintenance purposes or for remedying faults.
There are two reset options:

• Simple reset,

• complete reset.
A reset can only be carried out with the MDU 110 mobile data transfer unit
(MDU 110 operating instructions)
If you have any questions concerning the MDU 110, please contact your responsible
Dialock technician or visit www.hafele.com.
12.1 Simple reset
A simple reset is required in the following cases:
• If the programming key card and clearing key card (master keys) have been lost.
After a simple reset, the allocated master keys are cleared and reallocation is required
(blue LED continuously flashing). Continued use of the terminal and the MDU 110 mobile data
transfer unit is not possible until a restart has taken place with new master keys

( 7. Commissioning, page 49).
The locking authorisations for the user keys are retained after a simple reset.
Possible cause
• User key is not authorised.
• Distance between user key
and antenna too great.
• User key is not authorised.
• Low battery charge.
• Very low battery charge
Remedy
• Program the user key.

8. Programming user keys, page 52
• Observe the maximum distance of
25 mm between the user key and
antenna.
• Program the user key.

8. Programming user keys, page 52
• Replace batteries immediately

13.2.2 Battery change, page 63
• Replace batteries immediately

13.2.2 Battery change, page 63
61