Appendix; A Troubleshooting, Maintenance Message; Troubleshooting - Vaillant sensoHOME VRT 380f Operating And Installation Instructions

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: 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
0020298974_00 sensoHOME Operating and installation instructions
Possible cause
The batteries are flat
Software error
Software error
Boiler fault
Incorrect language set 1.
Measure
1. Change all the batteries. (→ Page 17)
2. If the fault persists, inform the competent
person.
1. Press and hold the button on the top right
of the control for longer than five seconds
in order to force a restart.
2. Switch the mains switch on the heat gener-
ator that feeds the control off and back on
again.
3. If the fault persists, inform the competent
person.
1. Press and hold the button on the top right
of the 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. 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 (
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
Appendix
SETTINGS)
.
.
.
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