BoilerFaultCodesIdeal L 02 Fault Code
Also written as L02 — same fault.
The Ideal L 02 fault code means: your boiler has tried to light several times but cannot establish a flame, usually because the gas supply is interrupted or a component is faulty.. It appears on 4 Ideal models in our database.
Technical description: IGNITION Lockout
DIY fix possible
Check if your gas meter has credit (if on a prepayment meter)Check if other gas appliances, like a hob, are working to confirm gas is flowingPress the 'Reset' button on the front of the boiler for five secondsIf it is freezing cold outside, check if your white condensate pipe is frozen and thaw it with warm water
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Ideal models that show the L 02 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ideal L 02 fault code information on this page is sourced and cross-checked against the official Ideal service / installation manuals for each affected model.
- Ideal i-mini2 C24 manual (PDF)
- Ideal Independent System2 S15 manual (PDF)
- Ideal Logic Max Combi 2 manual (PDF)
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026