Lockout High

Vokera Lockout Fault Code

Also written as LOCKOUT — same fault.

The Vokera Lockout fault code means: your boiler has stopped working because it failed to light the flame, and it now needs a manual reset to try again.. It appears on 2 Vokera models in our database.

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: Boiler fails to light during the ignition attempt period (10 secs approx.). This is indicated by the lockout reset button on the front control panel being illuminated. The gas valve is de-energised, but leaves the fan and pump running.
Typical repair cost £120-250 (including labour)

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 Lockout fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Vokera Lockout 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 27 April 2026