Emergency
77 on Alpha Intec2 30SE

Your boiler is unable to safely control the flow of gas, which means it has shut down to prevent any unsafe operation.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

What the manual says

Manufacturer manual

Anomaly on the gas valve control

From this model's manual
Verified against the Alpha/Alpha Intec2 20 30se 04 15 installation & service manual, page 47.
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 emergency severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

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All 54 fault codes on the Intec2 30SE

Seeing a different code? Every code this model can display, in one place.

010203040506081012151620232429313637384344454647515960616272737478798084878889909192939495969899E03E38E62E72F0

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