Appendix
14 Operating instructions Energy
7
0020300878_00
Appendix
A Adjustable values – overview
Adjustable values Values Unit Increment, select Factory set-
ting
Min. Max.
Heating mode
Heating flow temperature Current value ℃ 1 75
38 Preset
in the in-
stallation
DHW mode
Domestic hot water temper-
ature
Current value ℃ 1 60
35 60
ECO domestic hot water
temperature
Current value ℃ 1 Deactivated
38 50
B Troubleshooting
Fault Cause Measure
Product does not
start up:
– No hot water
– Heating re-
mains cold
The gas stopcock installed on-site
and/or the gas stopcock on the product
is closed.
Open both gas stopcocks.
The cold-water isolation valve is closed. Open the cold-water isolation
valve.
The power supply in the building is dis-
connected.
Check the fuse in the building.
The product switches on automat-
ically when mains voltage is re-
stored.
The product is switched off. Switch on the product.
The heating flow temperature is set
too low or to the Heating off position,
and/or the domestic hot water temperat-
ure is set too low.
Set the heating flow and domestic
hot water temperature.
The system pressure is insufficient.
Water deficiency in the heating installa-
tion (fault message: F.22).
Fill the heating installation.
There is air in the heating installation. Have a competent person purge
the heating installation.
After three unsuccessful ignition at-
tempts, the product switches to fault
mode (fault message: F.28).
Press the reset button for one
second. The product makes an-
other ignition attempt.
If you have been unable to elimin-
ate the ignition fault after three re-
set attempts, consult a competent
person.
There is a fault in the flue gas route. Have a competent person rectify
the fault.
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