BoilerFaultCodesVokera E 00 Fault Code
Also written as E00 — same fault.
The Vokera E 00 fault code means: your boiler is detecting a flame inside the combustion chamber when it should be switched off, which is a safety concern that prevents it from firing.. It appears on 1 Vokera model in our database.
Technical description: False flame
What causes the Vokera E 00 fault?
This fault occurs when the boiler's internal electronics detect a flame in the burner area even though the gas valve should be closed and the system isn't currently heating. It is usually caused by a faulty sensor sending a 'ghost' signal to the control board or a malfunction in the ignition lead that creates electrical interference. In some cases, it can indicate that the main control board is incorrectly interpreting signals and has shut the system down as a vital safety precaution.
This fault can sometimes be more frequent during periods of high humidity or after heavy rain, as moisture ingress can affect the electrical sensitivity of the flame sensing components.
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 E 00 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera E 00 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