BoilerFaultCodes 08 High
Alpha 08 Fault Code
The Alpha 08 fault code means: your boiler has attempted to restart itself too many times after encountering a series of underlying issues and has now locked itself out for safety.. It appears on 23 Alpha models in our database.
Technical description: Max. number of resets - Maximum number of resets reached (5)
Typical repair cost £120-250 (including labour)
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Search the official register for a qualified engineer in your area.
Gas Safe Register →Alpha models that show the 08 fault code
Click a model for the full fault code list and model-specific repair notes.
- C25 Xtraflame Repair: £120-250
- CD Repair: £120-250
- E-Tec Repair: £120-250
- E-Tec 24 Repair: £120-250
- E-Tec 28 Repair: £120-250
- E-Tec 33 Repair: £120-250
- E-Tec Plus Repair: £120-250
- E-Tec Plus 10 / 18 Repair: £0-120
- E-Tec Plus 24 Repair: £120-250
- E-Tec Plus 28 Repair: £120-250
- E-Tec Plus 33 Repair: £120-250
- E-Tec R Repair: £120-250
- Eco Repair: £80-150
- Eco 11 13 Repair: £0-160
- Evoke Repair: £120-250
- Evoke 10 / 18 Repair: £0-120
- H25 Xtraflame Repair: £120-250
- Intec 24GS Repair: £120-200
- Intec 28GS Repair: £120-250
- Intec 40GS2 Repair: £120-250
- Intec 50CS Repair: £120-250
- Intec2 25 28XE Repair: £120-200
- Intec2 30SE Repair: £120-250
Source
Alpha 08 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