High
Lockout on Vokera Option

Your boiler has failed to light the flame, so it has safely shut itself down to prevent a build-up of unburnt gas.

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.

What the manual says

Manufacturer manual

Ignition attempt will be terminated and the appliance will go to lockout (If no ignition has been established within ten seconds).

From this model's manual
Verified against the Vokera Option installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

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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