High
229 on Worcester Bosch Greenstar CDi Compact

Your boiler has detected that the internal flame has gone out unexpectedly while it was trying to heat your water or 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

Loss of flame signal during operation. An established flame has been extinguished.

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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