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Ideal Fault Codes

Select a fault code to see its meaning, common causes and how to fix it.

• F1 On Ideal boilers, F1 means the appliance has detected low water pressure in the heating system and has shut itself down… Read more →
• F2 The F2 fault code on Ideal boilers indicates that the boiler either failed to establish a stable flame during ignition… Read more →
• L1 The L1 fault code on an Ideal boiler indicates that the boiler has detected an out-of-range flow temperature and has… Read more →
• L2 Ignition lockout — the boiler has tried to light but failed to detect a flame, so it has locked out for safety. Read more →
• LF The LF fault code on Ideal boilers indicates an ignition failure. The boiler has attempted to light the burner one or… Read more →