High
31 on Alpha Intec2 30SE

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

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

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

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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