5 Detecting and rectifying faults
12
Operating
instructions
ecoTEC
plus
0020239012_02
4.7 Switching off heating mode
(Summer mode)
Heating off
Target flow temp.
Cancel
OK
1. To switch off heating mode without
switching off the hot water generation,
press
( ).
◁
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.
