operation manual

50
Replacing batteries
valve. There will be a pleasant room temperature
right away because of the radiated heat.
The operating lock of the radiator thermostat
can be activated and deactivated via the Home-
matic IP app. Tap on the menu symbol in the top
left of the screen of your app and select the menu
item “Device overview”. Select your radiator ther-
mostat to switch the operating lock “ON” or
“OFF”.
7 Replacing batteries
If the symbol for empty batteries ( ) appears in the dis-
play or in the app, please replace the used batteries by
two new LR6/mignon/AA batteries. You must observe the
correct battery polarity.
To insert the batteries into the radiator thermostat, please
proceed as follows:
• Push the battery compartment cover (D) to the
back and downwards to remove it from the de-
vice (see figure 7).
• Remove the (old) batteries.
• Insert two new 1.5 V LR6/mignon/AA batteries
into the battery compartment, making sure that
you insert them the right way round (see figure 8).
• Close the battery compartment (D).
• Please pay attention to the flashing signals of the