Emergency
Incorrect gas rate on Ferroli Sigma 40 FF

Your boiler is struggling to receive the correct amount of gas it needs to run safely and efficiently.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

Technical description

Check that gas consumption is correct and adjust pressure if necessary

Engineer required

This is a emergency severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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