Maintenance Messages; B -- Troubleshooting, Maintenance Message; Troubleshooting - Vaillant sensoHOME VRT 380 Manual De Uso

Appendix
A.2 Maintenance messages
# Message Description
1 Water defi- The water pressure is
ciency: Fol- too low in the heating
low the in-
installation.
structions
in the heat
gen.
B -- Troubleshooting, maintenance message
B.1 Troubleshooting
Symptom
Display remains dark
No changes in the
display can be made
via the control ele-
ments
Heat generator contin-
ues to heat once the
room temperature has
been reached
The heating install-
ation remains in do-
mestic hot water mode
It is not possible to
switch to the installer
level
20
Maintenance work
Refer to the operat-
ing instructions for the
relevant heat gener-
ator for information on
filling with water
Possible cause
Software error
No power supply on
the heat generator
The product is defect-
ive
Software error
The product is defect-
ive
Incorrect value in the
Room temp. mod.:
or Zone assignment:
function
Heat generator cannot
reach the max. target
flow temperature
You do not know the
code for the installer
level
Operating and installation instructions sensoHOME 0020288192_00
Interval
See the operating
instructions for the
heat generator
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 the mains switch on the heat gen-
erator that feeds the system control off and
back on again.
▶
Re-establish the power supply to the heat
generator; this is the same power supply
that feeds the system control.
▶
Replace the product.
▶
Switch the mains switch on the heat gen-
erator that feeds the system control off and
back on again.
▶
Replace the product.
1. In the Room temp. mod.: function, set the
value Active or Expanded.
2. In the zone in which the system control
is installed, assign the system control's
address in the Zone assignment: function.
▶
Reduce the set value in the Max. target
flow temperature:°C function.
▶
Reset the system control to the factory set-
ting. All set values will be lost.