Alpha Evoke Fault Codes
The Alpha Evoke is the brand's flagship — a premium combi and system range with a colour display, wider modulation and Alpha's longest warranties. It also brings a different fault language from older Alphas: codes prefixed 0A and 0E (0A21, 0E33 and so on), the 0A family broadly covering anomaly/lockout conditions and 0E the error states, shown on the colour screen with supporting text. For owners the practical rules carry over intact: note the exact code including the prefix, do the homeowner basics where they apply (pressure, condensate pipe in winter), and lean on the warranty — the Evoke's long cover makes Alpha's support line the right first call for anything persistent. Each code below links to its full diagnosis page.
Where Evoke fault codes appear
The Evoke's colour display shows fault codes in the 0A/0E format alongside descriptive text — a genuine improvement over bare numbers. Photograph the screen when a fault shows; the code plus its text is exactly what Alpha's support line and any engineer want to see.
Resetting a Alpha Evoke
Reset from the front controls (the display guides you); low-pressure faults want the system topped up to 1–1.5 bar first — the Evoke displays pressure digitally. With warranties this long, a returning code should go to Alpha's support line while cover lasts, with the annual service keeping that cover valid.
Common Evoke problems
The Evoke is young as a range and its real-world code list is correspondingly short: pressure-related lockouts, winter condensate freezes producing ignition anomalies, and occasional sensor or calibration codes. Most Evoke conversations end at the warranty line rather than a parts bill — keep registration and servicing current and let the cover work.
Most common Evoke fault codes
- 0A21 The 0A21 fault code on Alpha boilers — most commonly seen on the Pro Tec Plus range —… Read more →
- 0E33 The 0E33 fault code (sometimes displayed simply as E33) on Alpha boilers indicates that… Read more →
- 0A17 The 0A17 code on an Alpha boiler sits within the '0A' fault family, which is specifically… Read more →
- 0E25 The Alpha 0E25 fault code (shown as plain E25 on many Alpha models) is commonly described… Read more →
- 0A15 Fault code 0A15 appears on Alpha boilers — most commonly the Pro Tec Plus range — when… Read more →