📋 Key Takeaways
- 1.What it means: Oil burner failed to ignite. Could be no oil, blocked nozzle, dirty photocell, or ignition electrode fault.
- 2.What to do: Check oil tank level. Press reset button on the burner (red button on burner box). If it locks out again, call an OFTEC-registered engineer — do not keep resetting.
- 3.DIY or engineer? You can try one reset after addressing the cause. If it returns, call a Gas Safe engineer.
Fault Code L1: Burner lockout — no ignition
Oil burner failed to ignite. Could be no oil, blocked nozzle, dirty photocell, or ignition electrode fault.
This fault code can often be cleared by addressing the underlying issue (e.g. repressurising) and pressing the reset button once. If the fault returns after one reset, do not keep resetting — call a Gas Safe engineer to investigate.
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