48 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
Replaced by: Flexicom CX
The fault code is already on your display
Note it down before pressing reset — resetting clears the code immediately. How to read fault codes →
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 |
|---|---|---|
| 47-019-23 | Easicom 2 28c | 2015–present |
Tap any card for details
Your boiler has lost the signal from the sensor that monitors the water temperature, causing it to shut down for safety reasons.
Your boiler has lost its connection to the sensor that monitors the temperature of the water returning to it, so it has safely shut down to prevent overheating.
Your boiler has stopped working because it is unable to accurately measure the temperature of the water inside it due to a faulty electrical sensor connection.
Your boiler has stopped working because it is unable to accurately measure the temperature of the water returning to it, preventing it from heating safely.
Your boiler is struggling to accurately measure the temperature of the water stored in your hot water cylinder because there is an electrical fault with the sensor cable.
Your boiler has detected that it is running too hot and has automatically turned itself off to prevent any damage or safety issues.
Your boiler has stopped working because the amount of water inside your heating system has dropped below the minimum level required to operate safely.
Your boiler has detected that the water is heating up significantly faster than it can be moved around your system, forcing it to shut down to prevent internal damage.
Your boiler has detected that the water inside is heating up far too quickly, so it has shut itself down to prevent any damage or overheating.
Your boiler has detected that the exhaust gases leaving the system are dangerously hot and has automatically shut down to prevent damage or overheating.
Your boiler has detected what it thinks is a flame while the gas is supposed to be turned off, so it has shut itself down as a precaution.
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 because the flame inside has gone out and it cannot get it to stay lit.
Your boiler has detected that the internal fan responsible for safely venting exhaust gases is not spinning, so it has shut down to prevent unsafe operation.
Your boiler is struggling to breathe properly because there is a blockage or a problem with the pipes that bring in fresh air and push out exhaust fumes.
Your boiler is struggling to detect the temperature of the incoming cold water due to a faulty electrical connection or sensor fault.
Your boiler is struggling to communicate with its internal control system or any connected external thermostats.
Your boiler is unable to safely control the flow of gas, which means it has shut itself down to prevent a potentially dangerous situation.
Your boiler has detected that the internal gas valve is not closing correctly when it should, which creates a potential safety issue with the gas flow control.
Your boiler has detected an internal computer error, meaning it can no longer store its own software settings correctly and needs a professional to reset or replace the main circuit board.
Your boiler has detected an internal electrical problem or a misreading from its internal sensors, causing it to shut down for safety.
Your boiler has detected that its internal control electronics are running too hot and has safely switched off to prevent permanent damage.
Your boiler's main computer control panel is having trouble detecting the burner flame, which has caused it to shut down for safety reasons.
Your boiler is struggling to keep its internal flame lit while it is running.
Your boiler's computer has lost its identity settings and no longer recognises its own configuration, which prevents it from operating safely.
Your boiler is struggling to accurately measure the temperature of the water moving through it, so it has shut down to prevent overheating.
Your boiler is struggling to monitor the temperature of the water returning to it, so it has stopped working as a safety precaution to prevent overheating.
Your boiler has detected that the water pressure reading is incorrect, which is preventing it from heating your home safely.
Your boiler's water pressure sensor is detecting an unusually high electrical reading that is outside of the expected safe range.
Your boiler has detected an overheat situation and has shut itself down to prevent damage to its internal components.
Your boiler is detecting a blockage or a mechanical issue related to the safe ventilation of exhaust gases or the removal of water waste from the system.
Your boiler has lost communication with the sensor that measures the temperature of your hot water, so it cannot safely heat it up for you.
Your boiler is struggling to get a consistent temperature reading, resulting in the system shutting down to prevent potential overheating.
Your boiler has detected that the sensors measuring the internal water temperature are giving conflicting readings, so it has stopped working for safety reasons.
Your boiler has detected that the pipes measuring water temperature inside the unit have been swapped around during installation.
Your boiler has detected an external safety signal, such as a problem with your flue or a connected smart controller, and has shut down to protect your home.
Your boiler is failing to light because it cannot detect the electrical connection to the part responsible for creating the spark that ignites the gas.
Your boiler has lost its electrical connection to the part that controls the gas supply, meaning it cannot safely start up to heat your home.
Your boiler is struggling because it cannot properly communicate with the internal water pump that moves heat through your home.
Your boiler's computer brain is unable to start up correctly, meaning it cannot operate safely and your heating and hot water have stopped working.
Your boiler has stopped working because it cannot correctly read the temperature of the water returning to it, so it has shut down as a precaution.
Your boiler's temperature sensor is failing to provide a reading, so the system has shut down to prevent it from overheating.
Your boiler is unable to accurately measure the temperature of the water returning to it, meaning it has shut down to prevent potential overheating.
Your boiler is struggling to accurately detect the temperature of the water used for your taps and shower, meaning it has switched off your hot water to prevent overheating.
Your boiler is struggling because the electricity coming into it from your home's power supply is currently too low or inconsistent to run safely.
Your boiler has detected that it is running too hot and has automatically shut itself down to prevent damage.
Your boiler has stopped working because the water pressure inside the system has dropped too low to operate safely.
Your boiler has detected that the gases being vented out are much hotter than they should be, so it has turned itself off to prevent overheating.
Not faults — these are normal operating states. Tap to expand.
BoilerFaultCodes