What the manual says
Manufacturer manualCentral heating circuit on (radiator symbol)
From this model's manual
Verified against the Ferroli Boiler Modena 102 installation & service manual.
DIY fix possible
Check if your room thermostat or programmer is set to 'On'Wait for the house to reach temperature; the light should go out when the heating turns offTurn down your room thermostat if you wish to stop the heating manually
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