4 | Operating the System
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B1510622_en | Operating instructions Firewood boiler S4 Turbo
4.8 Switching off the power supply
WARNING
When the main switch is switched off in heating mode:
The boiler is placed in an uncontrolled state. Any resulting boiler malfunctions can
cause serious injury and damage.
Therefore:
r
Allow the fire to burn out completely and let the boiler cool, only then switch off the
main switch.
Ä
ID fan switches off when "Off" status has been reached
(flue gas temperature < 80 °C, boiler temperature < 65 °C)
r
Turn off the main switch
Ä
Boiler controller is switched off
Ä
There is no power supply to any of the boiler components
NOTICE! Frost protection function is no longer active!
4.9 Checking the ash level in the boiler
NOTICE
Cracks in the combustion chamber may occur during operation.
If the fireclay elements and the surrounding seals remain in their original position, existing
cracks do not represent a malfunction!