BoilerFaultCodesAlpha 24 Fault Code
The Alpha 24 fault code means: your boiler has detected that one of the buttons on the control panel is stuck or faulty, preventing you from changing settings.. It appears on 25 Alpha models in our database.
Technical description: Control panel button fault
What causes the Alpha 24 fault?
This fault occurs when the boiler's control board detects that a button on the front interface is being pressed continuously for more than 30 seconds. The most common reason is a button physically sticking in the door housing or an internal electronic failure within the interface panel. In some cases, moisture or dust ingress behind the panel can cause the contacts to short-circuit, leading the boiler to think a button is held down.
DIY fix possible
Check if any buttons feel stuck or are physically pressed inGently press and release all buttons to ensure they click freelyClean the control panel surface with a dry cloth to remove debrisPerform a reset by turning the selector switch to the reset position
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
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A cover plan would handle faults like 24: no call-out fees, no surprise bills.
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Alpha models that show the 24 fault code
Click a model for the full fault code list and model-specific repair notes.
- 240XE Repair: £120-250
- CD18 / CD24 Repair: £150-250
- Cd50s Cd70s Repair: £150-300
- E-Tec 28 Repair: £120-250
- E-Tec 33 Repair: £120-250
- E-Tec NX Repair: £90-250
- E-Tec NXS Repair: £80-220
- E-Tec Plus Repair: £100-200
- E-Tec Plus 10 / 18 Repair: £0-120
- E-Tec Plus 28 Repair: £100-200
- E-Tec Plus 33 Repair: £100-200
- E-Tec Plus NX Repair: £0-180
- E-Tec Regular Repair: £120-250
- E-Tec S Repair: £100-280
- Eco Repair: £120-200
- Eco 11 13 Repair: £100-250
- Evoke Repair: £90-180
- Evoke 10 / 18 Repair: £60-180
- Evoke NX Repair: £100-250
- Intec 40GS2 Repair: £120-250
- Intec 50CS Repair: £100-200
- Intec S Repair: £120-250
- Intec2 25 28XE Repair: £100-200
- Intec2 30SE Repair: £100-200
- SY9 24 Repair: £150-300
Source
Alpha 24 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