Low
LED4 (Permanent) on Ferroli Domina 102

Your boiler is currently running the central heating mode and the light is simply telling you that the system is active.

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.

Technical description

Central heating circuit on

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

LED1View →LED2View →LED3View →

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