Troubleshooting 5
0020224354_00 HOME Operating instructions
13
2. Slide the pin for the time interval, in
which the heating mode should be
switched on, outwards
(6)
.
3. Slide the pin for the time interval, in
which the heating mode should be
switched off, inwards
(5)
.
4. Set the selection switch
(1)
to the mid-
position
.
4.10 Switching the product to
standby mode
▶
Press the
button for less than three
seconds.
◁
Once the requirement currently in
use has finished, the display will
show
OFF
and go 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.
4.11 Frost protection
4.11.1 The product's frost
protection function
The frost protection function switches on
the boiler and the pump as soon as the
protection temperature in the heating cir-
cuit is reached.
–
Protection temperature: 12
℃
The pump stops once the minimum wa-
ter temperature in the heating circuit is
reached.
–
Minimum water temperature: 15
℃
If the burner ignition temperature in the
heating circuit is reached, the burner
switch is switched on and continues
to operate until the burner anti-cycling
temperature is reached.
–
Burner ignition temperature: 7
℃
–
Burner anti-cycling temperature: 35
℃
The hot water circuit (cold and hot water)
is not protected by the boiler.
Frost protection for the system can only be
guaranteed by the boiler.
A controller is required to control the tem-
perature of the system.
4.11.2 Frost protection for the
system
Note
Ensure that the product's power
and gas supply are working cor-
rectly.
Conditions
: If you are away from home for several
days, Without controller
▶
Switch the product to standby mode.
(
→
Page 13)
Conditions
: If you are away from home for several
days, With controller
▶
Program the number of days you will
be away in the controller to activate the
frost protection devices.
Conditions
: If you are away from home for a pro-
longed period
▶
Contact a qualified competent person,
who can completely drain the system or
protect the heating circuit by adding a
special frost protection agent for heating
installations.
5 Troubleshooting
5.1 Detecting and rectifying faults
▶
If problems occur whilst operating the
product, you can carry out certain self-
checks with the aid of the table in the
appendix.
Troubleshooting (
→
Page 16)
▶
If the product still does not function
without problems after the checks have
been carried out using the table, con-
tact your competent person to rectify
the problem.
