High
44 on Alpha Intec 40GS2

Your boiler has failed to start after multiple attempts and has locked itself down for safety to prevent gas build-up.

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.

What the manual says

Manufacturer manual

Safety lock out The boiler has attempted to fire repeatedly for the maximum time limit

From this model's manual
Verified against the Alpha Intec 40gs2 installation & service manual, page 42.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

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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