Low
Green LED on on Ferroli Arena

Your boiler is receiving power and is ready to work, but it hasn't been told to turn on the heating or hot water yet.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Boiler is on but there is no heat demand

From this model's manual
Verified against the Ferroli Boiler Optima 2001 installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Check that your room thermostat is turned up higher than the current room temperature.Ensure your programmer or heating timer is set to 'ON'.Turn on a hot water tap to see if the boiler fires up for water demand.

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