High
Burner Lockout on Worcester Bosch 26 CDi Xtra

Your boiler has failed to light the flame properly and has turned itself off for safety, meaning you currently have no heating or hot water.

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

Gas supply / pressure; Electrodes and gap; Flame sensor; Gas valve monitoring.

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

EAView →E9View →

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