Low
4 (Flashing Light) on Ferroli DOMINAplus F28D

Your boiler is currently in standby mode and is working correctly, simply waiting for either the room thermostat or a hot tap to be turned on.

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 standby

Engineer required

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

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