6 | Troubleshooting
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B1510622_en | Operating instructions Firewood boiler S4 Turbo
6 Troubleshooting
6.1 General fault with power supply
Error characteristics
Cause of error
Elimination of error
Nothing is shown on the
display
General power failure
No power to the controller
Main switch is turned off
FI-protective circuit breaker,
power line protection or SPS
power line protection tripped
Turn on the main switch
Switch on the protective circuit
breaker
6.1.1 Behaviour of system after a power failure
When the power supply has been restored, the boiler returns to the previous mode
and is controlled according to the specified program.
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After a power failure, check whether the STL (high-limit thermostat) has
tripped.
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Keep the doors of the boiler closed during and after the power failure, at
least until the induced draught fan automatically starts up again.
6.2 Extra cleaning of flue gas paths
Error characteristics
Possible cause
Elimination of error
Extra cleaning required due to
very sticky, black deposits in
the flue gas paths
Noticeably shorter cleaning
intervals
Using fuels with a water
content less than 15%
Optimise air duct by adjusting
the boiler controller
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Navigate to the “General Settings” menu
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Activate the parameter “FW w<15%” in the “Fuel selection” menu
NOTICE! See operating instructions for boiler controller!
NOTICE! If you have any questions, please contact Froling customer services or
your installer!