High
LOCKOUT on Worcester Bosch Greenstar 12i System

Your boiler has failed to light the flame after five consecutive attempts and has shut itself down as a safety precaution.

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

5th attempt 10 seconds wait. Burner sequences: Fan running 30 seconds, Spark ignition 4 seconds, Burner lit? if no - Stop spark. Flame achieve end of ignition sequence.

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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