BoilerFaultCodes.com
EA261 High Lockout

Your boiler's computer brain has developed a fault and can no longer safely control the burner to heat your home.

Call an engineer soon

Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: The burner control unit is faulty

What causes this fault?

This fault occurs when the internal electronic processor responsible for managing the gas burner fails a critical self-test. The most common reason is age-related wear or a component failure on the control board, which prevents the boiler from safely confirming that a flame is present or that the gas valve is operating correctly.

Typical repair cost £350-£650 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Find a Gas Safe engineer

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Protect yourself from future repair bills

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