High
E31 on Alpha Intec 40GS2

Your boiler has lost its connection to its external thermostat or control panel, meaning it cannot currently take instructions to turn the heating or hot water 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 remote control communication

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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