Alpha 62 Fault Code
The Alpha 62 fault code means: your boiler has lost its specific operating settings and needs a professional engineer to electronically recalibrate it to ensure it is burning fuel safely and efficiently.. It appears on 10 Alpha models in our database.
Technical description: Full boiler calibration required - This may occur when the PCB is replaced or if the parameters are altered in the air/gas section
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Gas Safe Register →Alpha models that show the 62 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Alpha 62 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 27 April 2026