High
E49 on Biasi Rinnova Adaptive Combi

Your boiler has detected that the gas is not burning correctly, which means it has shut down to prevent inefficient or unsafe operation.

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

Combustion drift error

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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Related fault codes

E48View →E50View →

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