BoilerFaultCodesVokera E22 Fault Code
The Vokera E22 fault code means: your boiler has shut itself down as a safety precaution because it has detected an internal fault that needs professional attention.. It appears on 1 Vokera model in our database.
Technical description: The safety devices have been activated (lockout)
What causes the Vokera E22 fault?
This fault occurs when the boiler's internal safety software detects an inconsistency during the ignition or combustion process and shuts down to prevent damage. The most common cause is a failure of the main circuit board to communicate correctly with the gas valve or ignition system. It can also be triggered by electrical interference or a component failing to provide the correct feedback during startup.
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 E22 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera E22 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