1 Battery compartment
catch
2. Open the battery compartment on the underside of the
controller by lifting the cover using the battery com-
partment catch (1).
3. Remove the cover.
4. Make sure the battery poles are the right way round.
5. Insert four new batteries of the same type in the con-
troller.
ā Alkaline AA/LR6 battery 1.5 V
6. Close the battery compartment.
7. Hook the controller back onto the wall-mounting base.
8. Press the controller down onto the wall-mounting base
until it audibly clicks into position.
9. Dispose of the old batteries correctly.
7 Decommissioning
7.1 Replacing the controller
If the controller of the heating system needs to be replaced,
the heating system must be shut down.
This work should be conducted by a skilled tradesman.
7.2 Recycling and disposal
The controller and the associated transport packaging con-
sists largely of recyclable materials.
Appliance
If your Vaillant unit is identified with this symbol, it
does not belong with your household waste at the end of its
useful life.
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