High
84 on Alpha Intec2 25 28XE

Your boiler is struggling to get enough gas to run properly, so it has purposefully locked itself into a lower power setting to remain safe.

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.

Technical description

Combustion fault Boiler operating in reduced output mode. A low supply pressure is detected on the gas line. As a result the appliance output is limited and the error code is displyed

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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