What the manual says
Manufacturer manualParameter for Chimney sweep function/activation status
From this model's manual
Verified against the Biasi Basica Combi installation & service manual.
DIY fix possible
Locate the selector switch or 'Reset' button on the control panel.Turn the selector switch back to the 'Standby' or 'Winter/Summer' position.If the code persists, restart the boiler by switching the main power off and back on after 30 seconds.
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