Emergency
00. on Saunier Duval Ecosy

Your boiler has detected a signal suggesting a flame exists when it is actually turned off, which is a safety concern that prevents it from starting to avoid a potential gas buildup.

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

There is a flame signal without there being a flame present.

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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