7 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
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Your boiler has detected an issue with the sensor that manages internal airflow, so it has safely shut down to prevent incorrect operation.
Your boiler is failing to light the fuel inside because it cannot detect a flame, causing the system to shut down for safety purposes.
Your boiler is failing to light the flame needed to produce heat or hot water.
Your boiler has detected a potential safety issue and has shut itself down to prevent damage or danger.
Your boiler is trying to start but the flame is failing to ignite, causing it to shut down for safety precautions.
Your boiler has detected an internal error that requires you to look at the specific flashing light patterns on the control panel to identify the exact problem.
Your boiler has detected that it is dangerously overheating and has automatically shut itself down to prevent damage or fire risk.
BoilerFaultCodes