Low
LED 4 (Permanent) on Ferroli Modena F

Your boiler is currently operating normally and providing heat to your radiators.

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

Central Heating circuit ON

From this model's manual
Verified against the Ferroli Boiler Modena 102 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 your room thermostat or programmer if you did not expect the heating to be onTurn down your thermostat to see if the light goes out, confirming controlNo action is required if your heating is working as intended

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