BoilerFaultCodesVokera E28 Fault Code
The Vokera E28 fault code means: your boiler has stopped working because the internal fan, which safely clears away exhaust gases, is not communicating with the main control board.. It appears on 1 Vokera model in our database.
Technical description: No signal from fan
What causes the Vokera E28 fault?
This fault occurs when the boiler's computer can no longer detect or control the speed of the fan responsible for clearing waste gases. It is usually caused by the fan motor burning out or a loose electrical connection between the fan and the main control board. Without the fan running at the correct speed, the boiler shuts down immediately as a safety precaution to prevent dangerous fumes from building up.
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 E28 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera E28 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