Vaillant ecoTEC plus SERIES Operating Instructions Manual - Faults
5 Detecting and rectifying faults
12
Operating instructions ecoTEC plus 0020200872_00
◁
The value of the heating flow tem-
perature appears in the display.
2. Use the
button to set the heating
flow temperature to Heating off.
3. Confirm by pressing
.
◁
Heating mode is switched off
◁
The
symbol appears in the
display.
4.8 Protecting the heating
installation against frost
4.8.1 Frost protection function
Caution.
Risk of material damage due
to frost.
The frost protection function
cannot guarantee flow through
the entire heating installation,
which means that parts of the
heating installation may freeze
and therefore become dam-
aged.
▶
During a period of frost, en-
sure that the heating installa-
tion remains in operation and
that all rooms are sufficiently
heated, even when you are
away.
Note
To keep the frost protection
devices active, you should switch
your product on and off using the
controller, if one is provided.
If the heating flow temperature falls be-
low 5 °C when the on/off button is on, the
product comes into operation and heats
the circulating water to approx. 30 °C on
both the heating side and the hot water
side (if available).
4.8.2 Draining the heating
installation
Another way to protect the heating install-
ation and the product from frost for very
long switch-off times is to drain them com-
pletely.
▶
Consult a competent person about this.
5 Detecting and rectifying
faults
▶
If faults occur or fault messages are
displayed (F.xx), proceed as set out in
the table in the appendix.
Troubleshooting (→ Page 15)
▶
If the product is not functioning cor-
rectly, contact a competent person.
6 Calling up (Live Monitor)
status codes
1. Press
and
at the same time.
◁
The menu is called up.
2. Navigate to the Live monitor menu
item and press
.
◁
The current operating status (status
code) is shown on the display.
7 Care and maintenance
7.1 Maintenance
An annual inspection
of the product
carried out by a
competent person
is a prerequisite for
ensuring that
the product is permanently
ready and
safe for operation, reliable, and
has a long working life.