Low
46 on Alpha Intec 24GS

Your boiler is struggling to read the outdoor temperature, likely due to a loose wire or a fault in the sensor installed outside your home.

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.

Technical description

External sensor intervention - No continuity of external sensor circuit

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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