Protecting The Heating Installation Against Frost; Switching The Product To Standby Mode; Troubleshooting 5; Detecting And Rectifying Faults - Vaillant ecoFIT pure 612 Operating Instructions Manual

8. Check the filling pressure in the
display.
9. Top up with more water if necessary.
10. Close the filling cock.
11. Return to the basic display.
(→ Page 10)
4.12 Protecting the heating
installation against frost
4.12.1 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).
4.12.2 Draining the heating
installation
When the unit is switched off for an exten-
ded period, frost protection can be guar-
0020230534_02 ecoFIT pure Operating instructions

Troubleshooting 5

anteed by completely draining the heating
installation and the product.
▶
Consult a competent person about this.
4.13 Switching the product to
standby mode
▶
Press the fault clearance key for less
than three seconds.
◁
The display shows OFF and goes
out.
◁
The product is now in standby mode.
◁
The product's frost protection func-
tion is activated.
◁
The main power supply is not inter-
rupted. The product continues to be
supplied with power.
5 Troubleshooting

5.1 Detecting and rectifying faults

▶
If faults occur, proceed in accordance
with the table in the appendix.
Troubleshooting (→ Page 16)
▶
If the fault cannot be eliminated using
the specified measures or if fault mes-
sages (F.xx) occur, contact a compet-
ent person.
5.2 Calling up (Live monitor)
status codes
▶
Press and at the same time.
Status codes – Overview (→ Page 16)
◁
The current operating status (status
code) is shown on the display.
13