Medium
31 on Alpha E-Tec Plus

Your boiler has lost its connection to your smart thermostat or wall controller, meaning it does not know when to turn the heating on.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

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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