BoilerFaultCodesVokera E07 Fault Code
The Vokera E07 fault code means: your boiler's main control board has encountered an internal electronic error, meaning the 'brain' of the system is unable to function correctly.. It appears on 6 Vokera models in our database.
Technical description: Primary return sensor NTC fault
What causes the Vokera E07 fault?
This fault occurs when the boiler's main control board suffers a critical electronic failure, preventing it from safely managing the heating process. The most common reasons include a power surge that has damaged the delicate circuitry or components reaching the end of their operational life due to heat stress over several years.
This fault is slightly more common during winter or stormy weather, as power fluctuations and surges caused by grid instability can trip the electronic components on the board.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Gas Safe Register →Vokera models that show the E07 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera E07 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 27 April 2026