High Lockout
E28 on Vokera Pinnacle

Your boiler has stopped working because the internal fan, which safely clears away exhaust gases, is not communicating with the main control board.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

No signal from fan

What causes this 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 is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

E 29View →

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