Low
LED4 flashing on Ferroli Modena HE

Your boiler is currently taking a short, scheduled pause to prevent internal wear and is not actually broken.

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 stand-by (egg timer symbol / 3 minute delay)

Engineer required

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

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