IBC Combi Boiler Error Codes
IBC boilers display descriptive faults on the colour touchscreen. Note the fault text and number shown before calling.
This is not a DIY repair
Combi boilers are gas-fired appliances regulated under the BC Safety Standards Act. Opening the unit, touching the gas valve, or working on the flue without a valid BC gas-fitter licence is both unsafe and illegal. Diagnosing the fault is helpful — fixing it should always be left to a certified technician.
Call 778-909-5731IBC fault codes (12)
Fault 1UrgentIgnition failure / no flame detected.Fault 2UrgentFlame loss during operation.Fault 3UrgentHigh-limit / overheat.Fault 4ModerateSupply (outlet) sensor fault.Fault 5ModerateReturn (inlet) sensor fault.Fault 6UrgentFlue / exhaust temperature high.Fault 7UrgentBlower / fan fault.Fault 8ModerateLow water pressure.Fault 9UrgentAir pressure / pressure switch fault.Fault 10UrgentGas valve / modulation fault.Fault 11LowOutdoor sensor fault.Fault 12ModerateDHW sensor fault.