20 Operating manual VRT 340f
• The batteries can now be changed
(2x AAA-LR03; Fig. 4.2). Make sure
that the polarity of the batteries is
correct.
Fig. 4.2 Changing the batteries
If the batteries are not changed in time,
the regulator switches over to operating
mode "Heating"
, to prevent the
installation from freezing up.
5 Manufacturer’s warranty
and liability
Vaillant warranty
We only grant a Vaillant manufacturers
warranty if a suitably qualified engineer
has installed the system in accordance
with Vaillant instructions. The system
owner will be granted a warranty in
accordance with the Vaillant terms and
conditions. All requests for work during
the guarantee period must be made to
Vaillant Service Solutions
(0870 060 777).
4 Operation, 5 Works guarantee and liability
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