BoilerFaultCodesAlpha E72 Fault Code
The Alpha E72 fault code means: 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.. It appears on 6 Alpha models in our database.
Technical description: Fast calibration is required
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Alpha models that show the E72 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Alpha E72 fault code information on this page is sourced and cross-checked against the official Alpha service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026