High
E72 on Alpha Intec2 25 28XE

Your boiler has lost its internal configuration settings and needs to carry out a specific self-adjustment process to ensure it burns gas safely and efficiently.

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

Fast calibration is required

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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