Baxi Combi Boiler Error Codes
Baxi combi boilers display an 'E' fault code on the digital display. Note the code 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 778-909-5731Baxi fault codes (12)
E110UrgentOverheat — safety thermostat tripped.E117ModerateSystem water pressure too high.E118ModerateSystem water pressure too low.E125UrgentCirculation fault — no flow detected.E128UrgentLoss of flame during operation.E133UrgentIgnition failure / gas supply fault.E160UrgentFan fault.E168ModerateGeneral electrical / communication fault.E20ModerateFlow NTC sensor fault.E28ModerateFlue NTC sensor fault.E50ModerateDHW NTC sensor fault.E80LowExternal/return sensor fault.