Inserting/Replacing Batteries; Fig. 9: Open Battery Compartment Cover; Fig. 10: Insert Batteries - HomeMatic HM-Sec-Key Mounting Instruction And Operating Manual

Tighten the screws "hand-tight" only, since otherwise the drive can be tilted,
which could cause faulty functionality (such as opening the door from the
outside with the key becomes difficult).
• Open the door. This is required so that the door lock drive can detect the end stop of
the lock without any hindrance during the following initialisation action.
5.4

Inserting/replacing batteries

To insert or replace batteries, please proceed as follows:
• Unlatch the battery compartment cover (G) on the right-hand side of the lock drive
by pressing with the finger on the notch and remove it. Take the used batteries/re-
chargeable batteries out if necessary.
Fig. 9: Open battery compartment cover
• Insert three (new) LR6/Mignon/AA batteries in the battery compartment (making
sure that you insert them the right way round) and reattach the battery compartment
cover.
B
A
D
E
F
Fig. 10: Insert batteries
H G
I
G
A
Mounting
A
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