BoilerFaultCodesIdeal L 2 Fault Code
Also written as L2 — same fault.
The Ideal L 2 fault code means: your boiler is failing to light the gas to start the heating or hot water process, and has locked itself for safety after 5 attempts.. It appears on 2 Ideal models in our database.
Technical description: Ignition Lockout - The boiler does not light after 5 attempts.
DIY fix possible
Check that your gas prepayment meter has credit (if applicable)Check that other gas appliances, like a cooker hob, are working to confirm gas supplyPress and hold the 'Restart' button for two seconds to see if the boiler resetsIn freezing weather, check that the white plastic condensate pipe outside is not frozen
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Avoid the next call-out bill
A cover plan would handle faults like L 2: no call-out fees, no surprise bills.
Affiliate links. We may earn a commission at no extra cost to you.
Ideal models that show the L 2 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ideal L 2 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 7 July 2026