4 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
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Your boiler is unable to start the small flame needed to fire up the main heating system, which means you have no heating or hot water.
Your boiler's pilot light is failing to stay on, which prevents the main burner from firing and heating your home.
Your boiler has a flame for the pilot light, but the main heating burner is failing to ignite, meaning you won't have any heating or hot water.
Your boiler has switched itself off to prevent overheating, likely because the internal temperature has become too high.
BoilerFaultCodes