BoilerFaultCodesVokera E 28 Fault Code
Also written as E28 — same fault.
The Vokera E 28 fault code means: your boiler has stopped working because it cannot detect that the internal fan, which is essential for safely venting exhaust gases, is running.. It appears on 1 Vokera model in our database.
Technical description: No signal from fan
What causes the Vokera E 28 fault?
This fault occurs when the boiler's computer loses contact with the fan responsible for clearing exhaust gases. It is usually caused by a mechanical failure within the fan motor itself or a loose connection in the internal wiring. Because the boiler cannot confirm the fan is spinning safely, it shuts down immediately as a safety precaution.
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 28 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera E 28 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