6 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
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Your boiler is struggling to clear its exhaust gases properly, which can be dangerous and indicates a potential issue with your chimney or ventilation.
Your boiler is leaking combustion gases into your home, which is a serious safety hazard that requires immediate professional attention.
Your boiler has detected a problem and safely turned itself off to prevent damage or danger.
Your boiler has stopped working because the burner failed to ignite, so it has safely shut itself down to prevent fuel from building up.
Your boiler has automatically turned itself off because it detected that it is running hotter than it should be.
Your boiler has detected that it is running too hot and has automatically shut down to prevent damage or dangerous overheating.
BoilerFaultCodes