High
229 on Worcester Bosch Greenstar 2000

Your boiler has stopped heating because the flame inside went out while it was trying to run.

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

Flame failed during burner operation. Check gas supply, working pressure, gas-air ratio, ionisation electrode, or LPG tank level.

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

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