High Lockout
153 on Baxi EcoBlue Advance Heat

Your boiler has been manually reset too many times and has temporarily locked itself to prevent further issues.

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

Forced reset unit unlocked

What causes this fault?

This fault occurs when the reset button has been pressed more than five times within a one-hour period. It is a safety feature designed to prevent you from repeatedly trying to start a boiler that has a persistent internal problem. The boiler essentially stops responding to resets to protect its components from further damage.

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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