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Ideal — Logic Heat 12/15/18/24/30
Select a fault code
Fault Codes
F1Ignition fault🔄 Try Reset
Boiler failed to ignite.
F2Flame loss🔄 Try Reset
Flame extinguished unexpectedly.
F3Fan fault🔧 Engineer Required
Fan speed outside operating range.
F4Flow NTC fault🔧 Engineer Required
Flow temperature sensor fault.
F5Return NTC fault🔧 Engineer Required
Return temperature sensor fault.
F7Flue gas thermostat🔧 Engineer Required
Abnormal flue temperature detected.
F9Low water pressure🔄 Try Reset
System pressure too low.
L1Overheat lockout🔧 Engineer Required
High limit thermostat has tripped due to overheating.
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