29 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 |
|---|---|---|
| 41-094-10 | Eclipse ESS | 1996–2010 |
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 is temporarily locked out because it is detecting a flame inside when it shouldn't be burning.
Your boiler has tried to start up, but it cannot detect a flame to keep the heating or hot water running safely.
Your boiler has lost the connection to the part that monitors water movement, so it has safely shut down to prevent overheating.
Your boiler has lost the signal from a temperature sensor that monitors the water returning to the system, causing the unit to stop working as a safety precaution.
Your boiler has stopped working because the internal waste water drain is blocked, which is a safety feature to prevent harmful gases from escaping.
Your boiler has detected that the water inside the system has become dangerously overheated and has shut itself down to prevent damage.
Your boiler has detected that the water returning to it is dangerously hot, causing it to shut down to prevent damage or overheating.
Your boiler has detected that the water temperature sensors are reading the pipes in the wrong order, preventing it from safely heating your home.
Your boiler has temporarily stopped working because the water inside is heating up much faster than normal.
Your boiler has detected that the gas supply pressure coming into the unit is too low to operate safely and effectively.
Your boiler has stopped working because it cannot detect that the internal air circulation fan is running, which is a key safety requirement for operation.
Your boiler has stopped working because it has lost connection to the internal fan that safely removes combustion gases.
Your boiler has detected an internal computer error and has safely shut down to prevent any further issues.
Your boiler's water flow sensor is reporting an internal electrical fault, which means the system cannot safely detect if water is moving through the pipes, causing it to shut down to prevent damage.
Your boiler has stopped working because it is unable to accurately measure the temperature of the water returning to it, causing the system to shut down for safety.
Your boiler has detected an internal computer error and has safely shut down to prevent any further issues.
Your boiler has lost the ability to detect the flow of water, meaning it cannot safely heat your home or provide hot water.
Your boiler has lost the connection to the sensor that monitors the water temperature returning to the unit, causing it to stop heating as a safety precaution.
Your boiler has detected an internal computer error and has safely shut down to prevent any further issues.
Your boiler's main control computer is experiencing an internal error and cannot safely operate the system.
Your boiler's main control computer is experiencing an internal error and cannot safely operate the system.
Your boiler's main control computer is experiencing an internal error, meaning the system has stopped working to prevent further damage.
Your boiler's internal computer has encountered a critical error and can no longer safely control the heating or hot water functions.
Your boiler's internal computer has encountered a serious error and is unable to operate safely, meaning you currently have no heating or hot water.
Your boiler is struggling to push air through its system because the internal fan is not spinning at the right speed, causing the unit to stop working for safety reasons.
Your boiler has detected trapped air in the gas supply pipe, which prevents it from igniting safely.
Your boiler has lost the connection to the part that monitors water movement, so it has safely shut down to prevent overheating.
Your boiler has lost the signal from a temperature sensor that monitors the water returning to the system, causing the unit to stop working as a safety precaution.
Your boiler has detected that the water valves underneath it have been closed, preventing water from flowing through the system properly.
BoilerFaultCodes