11 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
Replaced by: Potterton Puma i
This boiler uses LED flash patterns
Count the flashes in one repeating group before the pause. That number is your fault code. Do not reset until you have noted it. How to read fault codes →
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Your boiler is attempting to start but failing to detect a flame, causing it to shut down for safety.
Your boiler has failed to start after several attempts because it cannot detect a flame, so it has turned itself off for safety.
Your boiler has lost all power and is completely unresponsive, meaning it cannot provide heating or hot water until the electrical connection is restored.
Your boiler has detected an internal issue with its airflow system or electrical supply, causing it to shut down for safety reasons.
Your boiler is not detecting a safe electrical connection, which means it has safely shut itself down to prevent damage or electrical hazards.
Your boiler has detected a flame when it should not be lit, which means the system is currently trying to reset itself to ensure safe operation.
Your boiler is operating normally and is currently active as it provides heating or hot water to your home.
Your boiler has stopped working because it failed to start after three attempts, which is often caused by an interruption to the gas supply or a trapped air pocket.
Your boiler has stopped working and is showing a fault light, meaning it has detected an internal error that has forced it to shut down for safety.
Your boiler has switched itself off because it has detected an unsafe rise in temperature and needs a manual reset to start working again.
Your boiler has detected that it is running too hot and has safely shut itself down to prevent damage.
BoilerFaultCodes