High
Lockout (Red) on Firebird Enviro Combi 26

Your boiler's burner has stopped working and has gone into a safety shutdown mode to prevent further damage.

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

This indicates that there is a burner fault. There are several possible causes, such as fuel supply, ignition failure or other burner related faults.

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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