Low
4 (Flashing Light) on Ferroli Domina 102

Your boiler is currently idle and waiting for a signal to provide heating or hot water, so it is simply in 'standby' mode and functioning as expected.

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

DIY fix possible

Check your room thermostat is set to a higher temperature than the current room temperatureEnsure your heating programmer or timer is set to the 'on' positionCheck that the hot water tap is turned on if you are testing for hot water demand

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