Vaillant VRT 392f, Руководство по эксплуатации и установке

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19 Operating manual VRT 392f 0020044239_01
h
Note
Ensure correct polarity of the batteries
(see Fig. 5.2).
Always change all batteries at the same time.
Only use the following battery type:
Alkaline AA/LR6 Battery 1.5 V.
Do not use rechargeable batteries.
Depending on use, the batteries last between
approx. 1 and 1.5 years.
Carefully push the controller onto the wall
socket (
2 ) until it snaps into place.
The display remains dark
The display remains dark although you turn or click one
of the dials.
Change all batteries at the controller.
A description of how to do this is provided in this
Section under "Change battery")
h
Note
The display is normally switched off to save
power. This increases the service life of the
batteries.
The display and lighting are activated as soon
as you turn or click one of the dials. If the
appliance is not used for more than one minute
the basic display returns and switches off after
approx. 10 minutes.
Status and fault messages of the radio receiver unit
green LED on: everything OK
red LED on: error (no communication with
appliance or controller)
red LED flashes briefly: radio transmission
green LED flashes:
the teach-in process was started
via a button (only relevant for
parts replacement)
Status and error messages 5