Vaillant sensoHOME VRT 380/2 Manual De Uso E Instalación página 22

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: F. Boiler
fault, the specific fault
code (e.g. F.33) with
the specific boiler is
shown in the display
Display: You do not
understand the set
language
22
Possible cause
Software error
Software error
Button lock is active
Boiler fault
Incorrect language set 1.
Operating and installation instructions 0020323630_00
Measure
1. Press and hold the button on the top right
of the system 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 system 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 sys-
tem control for approx one second in order
to deactivate the button lock.
1. Reset the boiler by first selecting Reset
and then Yes.
2. If the fault message persists, inform the
competent person.
Press twice.
2.
Select the last menu item (
TINGS) 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
SET-
.
.
.