BoilerFaultCodesVokera E06 Fault Code
The Vokera E06 fault code means: your boiler's main control computer is experiencing a software or hardware error, which prevents it from safely operating your heating and hot water.. It appears on 1 Vokera model in our database.
Technical description: Internal fault (PCB)
What causes the Vokera E06 fault?
This fault occurs when the boiler's main control board suffers a hardware failure or a memory error that prevents it from managing the heating safely. The most common reason is electrical fatigue of the small components on the board or a short circuit caused by age. Because the 'brain' of the boiler can no longer process instructions, it shuts the system down to prevent further damage.
This fault can sometimes follow heavy summer thunderstorms, as power surges or nearby lightning strikes are known to damage sensitive electronic circuit boards.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Vokera models that show the E06 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera E06 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