How much does it cost to fix Potterton error code Ignition LOCKOUT?

Typical repair cost for the Potterton Ignition LOCKOUT fault is £120-250 including labour.

Ignition LOCKOUT High

Potterton Ignition LOCKOUT Fault Code

Q: What does the Potterton Ignition LOCKOUT fault code mean?

Your boiler has stopped working because it failed to light the flame, which could be due to a simple issue like a gas supply problem or a fault with the internal ignition components.

Also written as IGNITIONLOCKOUT — same fault.

The Potterton Ignition LOCKOUT fault code means: your boiler has stopped working because it failed to light the flame, which could be due to a simple issue like a gas supply problem or a fault with the internal ignition components.. It appears on 6 Potterton models in our database.

Technical description: Manual Lockout. No gas supply, reversed polarity, gas valve lead continuity fault, spark generator fault, electrode damaged/gap incorrect, or flame detection fault.

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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Potterton models that show the Ignition LOCKOUT fault code

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

Source

Potterton Ignition LOCKOUT fault code information on this page is sourced and cross-checked against the official Potterton service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026