Replacing Batteries - HomeMatic HMIP-WTH Mounting Instruction And Operating Manual

Replacing batteries

7 Replacing batteries
If the symbol for empty batteries ( ) appears in the display
or in the app, please replace the used batteries by two
new LR03/micro/AAA batteries. You must observe the
correct battery polarity.
To replace the batteries of the wall thermostat, please
proceed as follows:
• Once mounted, the electronic unit (B) can easily
be pulled out of the frame (A) and removed from
the mounting plate (F). To remove the electronic
unit from the frame, take hold of the sides of the
electronic unit and pull it out (see figure 6). You
do not need to open the device.
• Turn the electronic unit over to remove or insert
the batteries.
• Insert two new 1.5 V LR03/micro/batteries into
the battery compartment, making sure that you
insert them the right way round (see figure 7).
• Put the electronic unit back into the frame. Make
sure that "TOP" and the arrows on the back side
point upwards and that the clips on the mount-
ing plate latch into the openings on the electronic
unit.
• Please pay attention to the flashing signals of the
device LED while inserting the batteries (see „8.4
Error codes and flashing sequences" on page
39).
36