BoilerFaultCodesVokera 24 Fault Code
The Vokera 24 fault code means: your boiler has detected that the water inside the system has become dangerously hot and has shut itself down to prevent damage or overheating.. It appears on 6 Vokera models in our database.
Technical description: high limit flow temperature probe
What causes the Vokera 24 fault?
This fault occurs when the boiler's internal computer struggles to communicate with its sensors or other electronic components. It is often caused by a brief interference in the electrical signals or a loose connection within the internal wiring that links the parts together. In some cases, it can indicate that the main control board is beginning to fail and is struggle to process information correctly.
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 →Avoid the next call-out bill
A cover plan would handle faults like 24: no call-out fees, no surprise bills.
Affiliate links. We may earn a commission at no extra cost to you.
Vokera models that show the 24 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera 24 fault code information on this page is sourced and cross-checked against the official Vokera service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026