High Lockout
E030 on Vokera Evolve

Your boiler has stopped working because the fan that removes waste gases is not spinning or communicating correctly with the system.

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

What causes this fault?

This fault occurs when the boiler's control system detects that the fan is not spinning at the required speed to safely clear combustion gases from the unit. The most common reasons are a mechanical failure within the fan motor itself, a loose connection in the internal wiring, or a fault on the main circuit board failing to send power to the fan.

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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