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Ideal — Logic+ Combi / System / Heat
Select a fault code
Fault Codes
F1Ignition fault🔄 Try Reset
The boiler has failed to detect gas or failed to ignite.
F2Flame loss fault🔄 Try Reset
Flame established but extinguished during operation.
F3Fan fault🔧 Engineer Required
The boiler fan is not operating at the correct speed.
F4Flow NTC fault🔧 Engineer Required
The flow temperature sensor has developed a fault.
L1Overheat lockout🔧 Engineer Required
The boiler has overheated and the high limit thermostat has tripped.
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