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Verified boiler fault-code guides
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Baxi · 600 Combi
- Baxi E110Maximum boiler temperature was exceeded for the rate of temperature rise, or the safety thermostat sensor tripped.
- Baxi E118Primary heating-system water pressure is low; the Baxi table defines this as below 0.5 bar.
- Baxi E125Primary water-circulation fault.
- Baxi E133E133 indicates that ignition or flame establishment was unsuccessful and the boiler has locked out.
- Baxi E20Central heating temperature (NTC) sensor fault - short or open circuit.
- Baxi E40Return central heating temperature (NTC) sensor fault - short or open circuit.
- Baxi E83No communication (communication error).
- Baxi E109Pre-circulation fault (precirculation alarm).
- Baxi E154Flow/return sensor temperature test (plausibility test) fault.
- Baxi E321Domestic hot water temperature (NTC) sensor fault.
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