Emergency
Fault on Worcester Bosch Greenstar R29 40 HE

Your boiler is struggling to burn gas cleanly, resulting in internal vibrations or rumbling sounds that suggest a combustion issue.

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

Excessive burner noise, rumbling noises

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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Related fault codes

EAView →E9View →

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