High
264 on Worcester Bosch Greenstar 28CDi

Your boiler is struggling to breathe properly, meaning it cannot safely clear exhaust gases and has shut down to protect your home.

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

Air handling failed during operation

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

227View →E9View →

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