17 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
Replaced by: Baxi 800 Combi
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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 |
|---|---|---|
| 47-077-14 | Ecoblue Advance 24 Combi ErPD | 2015–present |
| 47-077-15 | Ecoblue Advance 28 Combi ErPD | 2015–present |
| 47-077-16 | Ecoblue Advance 33 Combi ErPD | 2015–present |
| 47-077-17 | Ecoblue Advance 40 Combi ErPD | 2015–present |
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Your boiler has lost the ability to accurately measure the temperature of the water circulating through your radiators, so it has shut down to prevent overheating.
Your boiler has detected an issue with the sensor that monitors the temperature of the exhaust gases exiting the flue.
Your boiler is having difficulty reading the water temperature returning from your radiators, which prevents it from heating your home properly.
Your boiler is struggling to move water around your heating system, which is preventing it from heating your home or water properly.
Your boiler has detected that it is overheating and has automatically switched itself off to prevent damage.
Your boiler has detected that it is getting too hot and has automatically shut itself down to prevent damage.
Your boiler has detected that the water pressure inside your heating system is currently too high for it to operate safely.
Your boiler has stopped heating and providing hot water because the water pressure inside the system has dropped below the necessary level.
Your boiler has detected that hot water is not moving through the system properly, which means it cannot heat your home or taps safely.
Your boiler is trying to start but keeps losing the flame before it can stay on, so it has stopped heating to keep you safe.
Your boiler has detected that the temperature of the exhaust gases leaving the flue is too high, causing it to shut down to prevent damage.
Your boiler has stopped working because it failed to light or stay lit, meaning you currently have no heating or hot water.
Your boiler has attempted to start but could not light the flame, so it has purposefully shut itself down for safety.
Your boiler has detected that the internal fan responsible for safely venting exhaust gases is not turning or is not communicating correctly with the system.
Your boiler is struggling to detect the temperature of your hot water supply, which means it has stopped providing hot water to prevent overheating.
Your boiler has detected a flame when it shouldn't be there, so it has safely shut itself down to prevent any risk of fire or gas buildup.
Your boiler has stopped working because the amount of water inside the system has dropped too low.
BoilerFaultCodes