BoilerFaultCodes 72 High
Alpha 72 Fault Code
The Alpha 72 fault code means: your boiler's computer system has detected that some of its internal settings have drifted or been changed, and it needs a professional to recalibrate it to run correctly.. It appears on 10 Alpha models in our database.
Technical description: Fast calibration required - The PCB detects that some parameters have been altered
Typical repair cost £100-200 (including labour)
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Alpha models that show the 72 fault code
Click a model for the full fault code list and model-specific repair notes.
- C25 Xtraflame Repair: £100-200
- E-Tec Plus Repair: £100-£200
- E-Tec Plus 24 Repair: £100-£200
- E-Tec Plus 28 Repair: £100-£200
- E-Tec Plus 33 Repair: £100-£200
- H25 Xtraflame Repair: £100-200
- Intec 28GS Repair: £100-200
- Intec 50CS Repair: £100-200
- Intec2 25 28XE Repair: £100-200
- Intec2 30SE Repair: £120-200
Source
Alpha 72 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