9 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
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The GC number on your boiler's data badge identifies the exact appliance and production years, as recorded in the UK Product Characteristics Database.
| GC number | Appliance (register name) | Produced |
|---|---|---|
| 47-393-30 | Gold Combi 28 HE LPG | 2010–present |
Appliance names and production years are taken from the UK Product Characteristics Database (the SAP/SEDBUK register). Where a GC number is also printed in this model's own manufacturer manual, both sources were checked to agree.
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Your boiler has stopped working because a sensor that monitors the temperature of the water returning to the unit has developed a fault.
Your boiler has detected a problem with the sensor that monitors the temperature of the exhaust gases, causing it to stop running for safety.
Your boiler's hot water temperature sensor has developed a fault, meaning the system cannot accurately measure or provide hot water.
Your boiler has detected that it is getting too hot and has automatically shut down for your safety.
Your boiler has temporarily stopped working because the internal water pressure has dropped too low to operate safely.
Your boiler is struggling to move water around the system effectively, which is causing it to shut down to prevent overheating.
Your boiler has sensed that the exhaust gases are getting too hot and has shut down as a safety precaution to prevent damage.
Your boiler has failed to ignite or lost its flame, meaning it has temporarily stopped working to keep you safe.
Your boiler has detected that the internal fan, which clears waste gases from the system, is not spinning at the correct speed or has stopped working.
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BoilerFaultCodes