High
227 on Worcester Bosch 1000

Your boiler is attempting to start but is unable to detect a steady flame, so it has safely shut down to prevent gas from escaping.

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

No flame signal after ignition

What causes this fault?

Ignition failure

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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