Low
4 (Flashing Light) on Ferroli Domi Compact

Your boiler is perfectly healthy and is simply waiting for a signal from your thermostat to turn on the heating.

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 turned up to a temperature higher than the current room temperatureEnsure your heating timer or programmer is set to 'On'Wait for the boiler to detect a request for heat and the indicator light to stabilise

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