25 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
Replaced by: Gold Combi ErP
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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 |
|---|---|---|
| 47-590-05 | Gold 24 HE | 2005–2008 |
| 47-590-06 | Gold 28 HE | 2005–2008 |
| 47-590-19 | Gold 33 HE | 2005–2008 |
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Your boiler has lost its electrical connection to the gas supply mechanism, meaning it cannot ignite to provide heat or hot water.
Your boiler has detected an internal fault that is preventing it from heating your home or water reliably, likely due to an issue with its electronic monitoring system.
Your boiler has detected an issue with the sensor that measures the water temperature as it leaves the unit, meaning it has safely shut down to prevent overheating.
Your boiler has detected a communication error between its internal electronic parts, meaning it has shut down as a precaution to prevent further issues.
Your boiler has detected an issue with an add-on safety sensor or accessory, which is causing it to shut down for your protection.
Your boiler has detected an error with an internal safety or connection component that is preventing it from operating safely.
Your boiler's internal safety management system is reporting a communication error, meaning it has shut down to ensure your home remains safe.
Your boiler has stopped working because it cannot stay lit, meaning your heating and hot water will not function.
Your boiler has detected that the water inside has become dangerously hot and has shut itself down to prevent damage or safety risks.
Your boiler is struggling to move water around the system correctly, which is preventing it from heating up as it should.
Your boiler has lost the ability to accurately measure its own temperature, so it has safely shut down to prevent overheating.
Your boiler has stopped working because it cannot light the flame required to produce heat.
Your boiler is failing to light because it cannot detect a flame, meaning you currently have no heating or hot water.
Your boiler has stopped working because it cannot detect that the internal fan, which is essential for safely venting exhaust gases, is spinning at the correct speed.
Your boiler has detected an internal issue with one of its main electronic components, causing it to shut down for safety reasons.
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's computer brain is not correctly configured or matches the wrong model, meaning the system cannot operate safely or reliably.
Your boiler has detected an issue with the sensor for your solar hot water system, which usually means the sensor is faulty or the connection is loose.
Your boiler has overheated, prompting a safety switch to shut the system down to prevent damage.
Your boiler has detected that the water pressure in the system is too low to run safely.
Your boiler has shut down because it is getting too hot inside, usually because the water isn't moving around the system properly.
Your boiler has shut down because the exhaust gases have become too hot, which is a safety measure to prevent damage to the system.
Your boiler has tried to light several times but cannot establish a steady flame, likely because gas isn't reaching it or the spark is failing.
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.
Your boiler has detected that water is not circulating correctly through the system before the heating process starts, causing it to shut down to prevent damage.
BoilerFaultCodes