Vaillant VR 92/2 Manual De Uso E Instalación página 29

Appendix
A Troubleshooting, maintenance message
A.1 Troubleshooting
Symptom
Display remains dark
No changes in the
display can be made
via the control ele-
ments
Display: Button lock
activated, it is not
possible to change
the settings or values
Display: You do not
understand the set
language
A.2 Maintenance messages
Code/ Description
#
meaning
1 Water defi- The water pressure is
ciency: Fol- too low in the heating
low the in- installation.
structions
in the heat
gen.
0020287935_01 Operating and installation instructions
Possible cause
Software error
Software error
Button lock is active
Incorrect language set 1.
Maintenance work
Refer to the operat-
ing instructions for the
relevant heat gener-
ator for information on
filling with water
Measure
1. Press and hold the button on the top right
of the remote control for longer than five
seconds in order to force a restart.
2. Switch off the mains switch on all heat
generators for approx. 1 minute and then
switch them on again.
3. If the fault message persists, inform the
competent person.
1. Press and hold the button on the top right
of the remote control for longer than five
seconds in order to force a restart.
2. Switch off the mains switch on all heat
generators for approx. 1 minute and then
switch them on again.
3. If the fault message persists, inform the
competent person.
▶
Press the button on the top right of the
remote control for approx. one second in
order to deactivate the button lock.
Press twice.
2.
Select the last menu item (
and confirm by pressing
3.
Under SETTINGS, select the second
menu item and confirm by pressing
4. Select the language that you understand
and confirm by pressing
Interval
See the operating
instructions for the
heat generator
SETTINGS)
.
.
.
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