Medium
31 on Alpha Intec 40GS2

Your boiler has lost its digital connection to the wall-mounted thermostat control, meaning it doesn't know when to turn your heating on or off.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description

Loss of communication with external control (Alpha Climatic) - Loss of connection between the boiler and Alpha Climatic control unit

Engineer required

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

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