High
2981 on Worcester Bosch 1000

Your boiler has switched itself off permanently because of repeated failed attempts to start, and it now requires a professional to safely unlock the system.

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

Super lock out fault: The appliance has been reset 6 times within 15 minutes. (Boiler locked. Contact a qualified heating engineer)

What causes this fault?

Critical repeated failures

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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