Burner lock indicator High

Ideal Burner lock indicator Fault Code

Also written as BURNERLOCKINDICATOR — same fault.

The Ideal Burner lock indicator fault code means: your boiler has shut down because the burner failed to light or stay lit, requiring a manual reset to try and fire up again.. It appears on 1 Ideal model 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: Feeds signal from lockout terminal on burner control box to lock out indicator on boiler control panel.
Typical repair cost £120-350 (including labour)

DIY fix possible

Locate the reset button or dial on the front control panel.Press or turn the control to the 'Reset' position for 5 seconds.Wait for the boiler to attempt the ignition sequence; if it fails again, contact a Gas Safe engineer.

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Ideal models that show the Burner lock indicator fault code

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

Source

Ideal Burner lock indicator fault code information on this page is sourced and cross-checked against the official Ideal service / installation manuals for each affected model.

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