Start-Up; Inserting (Replacing) Batteries - HomeMatic HM-PB-4Dis-WM Mounting Instruction And Operating Manual

8. Start-up

8.1 Inserting (replacing) batteries

The wall-mounting pushbutton runs on
3x LR03 (micro/AAA) batteries.
• Slide the wall-mounting pushbutton up and
off the mounting plate.
• You will see the battery holders on the rear
of the wall-mounting pushbutton.
• Insert 3 new LR03 (micro/AAA) batteries in
the battery compartments (making sure that
you insert them the right way round).
• If you have already attached the mounting
plate to the wall, slide the wall-mounting
pushbutton onto it from above.
The service life of new alkaline batteries is approxi-
mately two years. The battery life will depend on
how frequently operations are carried out (or how
often the display is activated).
The display will indicate when it is
time to replace the batteries. When
the display has been activated, a cor-
responding message will briefly ap-
pear. If the device is being operated in
conjunction with a HomeMatic central
control unit, a service message is sent to the CCU too.
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