5 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
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Your boiler has temporarily stopped working because it cannot safely confirm that exhaust gases are clearing properly.
Your boiler has detected an issue with the temperature sensor on the central heating system, meaning it cannot accurately read how hot the water is.
Your boiler is struggling to detect the temperature of your hot water properly, which usually means it will stop heating your taps.
Your boiler is not receiving the correct temperature readings from the weather sensor fitted outside your home.
Your boiler has switched itself off because it has become too hot internally and needs to be reset by a professional to ensure it is operating safely.
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BoilerFaultCodes