High
Intermittent lockout on Worcester Bosch Greenstar Camray Utility

Your boiler is struggling to stay lit because it cannot reliably sense the flame or is being affected by outside wind, causing it to turn itself off for safety.

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

Bad electrical connection; Intermittent flame detection fault; Down draught

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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