Low
47 on Alpha Intec 12S

Your boiler is still working but cannot reach its full power, meaning your radiators might not get as hot as they should.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Reduced burner output

From this model's manual
Verified against the Alpha/Alpha Intec S installation & service manual.
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 fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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All 24 fault codes on the Intec 12S

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

0102030405060810121516202425272931373843444651

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