High
2 8 on Saunier Duval Ecosy

Your boiler has stopped working because the mechanical fan that pushes waste gases outside is not spinning or responding properly.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

The fan is stationary or there is no fan speed signal.

Engineer required

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

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