High Lockout
E05 on Vokera Mynute Vhe

Your boiler's fan, which safely clears exhaust gases from the system, is not spinning at the correct speed or reporting its status correctly.

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

Fan fault / Hall sensor fault

What causes this fault?

This fault occurs when the boiler's internal computer detects that the fan is not spinning fast enough to safely extract exhaust fumes. The most common reasons are a build-up of dust and debris within the fan motor or a failure of the sensor that monitors the fan's rotation. If the fan cannot reach the required speed, the boiler will automatically shut down as a safety precaution.

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

E03View →E07View →

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