Low
5 (Permanent Light) on Ferroli DOMINAplus F28D

Your boiler is operating normally and is simply indicating that it is receiving electrical power.

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

Electric power supply ON

From this model's manual
Verified against the Ferroli Boiler Domina 80n 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

No action required as this is a status indicator rather than a fault code.Ensure your heating or hot water controls are set correctly if you are not receiving heat.

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