Low
4 (Flashing Light) on Ferroli Modena HE

Your boiler is working exactly as it should and is currently waiting for a command from your room thermostat or timer to start 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 temperature.Ensure your heating timer or programmer is set to the 'On' or 'Timed' position.Verify that the boiler's own mode selector is set to both heating and hot water if required.

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