72 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 |
|---|---|---|
| 47-019-37 | Energy 35 Store | 2015–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 lost the signal from one of its internal temperature sensors, causing it to shut down for safety.
Your boiler has lost the signal from the sensor that monitors the water temperature returning to the unit, causing it to stop heating as a safety precaution.
Your boiler is having trouble measuring the temperature of the built-in hot water cylinder, which usually means it cannot heat your hot water properly.
Your boiler's hot water cylinder sensor is not responding properly, which means the system cannot correctly measure the temperature of your stored hot water.
Your boiler has temporarily stopped working because it is getting an incorrect temperature reading from its internal sensor.
Your boiler has temporarily stopped working because a sensor that measures the temperature of the water returning into the system has developed an electrical fault.
Your boiler has lost the ability to properly read the temperature inside your hot water storage tank due to a wiring or sensor problem.
Your boiler has lost the ability to read the temperature of your hot water storage cylinder correctly due to a wiring or sensor fault.
Your boiler has temporarily shut down because the internal water temperature got too high.
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 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 switched itself off because the water inside it is heating up too quickly, which usually means the water isn't flowing through the system properly.
Your boiler has detected an issue with the internal gas valve, meaning it cannot safely control the supply of gas required to heat your home and water.
Your boiler has detected a false flame signal, meaning it thinks a fire is burning inside when it shouldn't be, so it has safely shut down to prevent any risk.
Your boiler has tried to light several times but has been unable to establish a flame, meaning you will have no heating or hot water.
Your boiler was working but has unexpectedly turned itself off because the flame went out and it cannot manage to relight it.
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 recognise its own internal memory and electronic settings, meaning it cannot operate safely and has shut down.
Your boiler is struggling to communicate with its internal control system or any connected external thermostats.
Your boiler has lost the electronic signal to a sensor that measures water flow, so it has safely stopped working to prevent damage.
Your boiler has detected an issue with the sensor that measures the flow of water inside the system, causing it to lock out for safety.
Your boiler has detected an issue with the incoming gas supply pressure, meaning it cannot operate safely.
Your boiler has detected an issue with how water or air is flowing through the system, so it has safely shut down to prevent damage.
Your boiler has detected a safety issue while trying to operate normally and has temporarily locked itself out to prevent any hazards.
Your boiler has detected an issue with the control signal to the internal gas valve, which prevents it from safely supplying gas to heat your home.
Your boiler has detected an issue with the gas valve shutting down properly, so it has safely locked itself out to prevent any hazards.
The boiler's internal computer memory has suffered a technical failure, meaning it can no longer process the instructions needed to run safely.
Your boiler has detected an internal electronic or temperature sensor problem and has safely shut down to prevent damage.
Your boiler has temporarily stopped working because the internal electronic components have become too hot.
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 main computer has lost its memory of which specific model it is, meaning it cannot run safely without a professional reset.
Your boiler has temporarily stopped working because it is getting incorrect temperature readings from its internal heating pipes.
Your boiler is temporarily locked out because the temperature sensors on the heating pipes are reading conflicting or incorrect measurements.
Your boiler has detected that the water pressure reading is incorrect, which is preventing it from heating your home safely.
Your boiler has detected that the water pressure inside the system has dropped too low to operate safely and effectively.
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 is having trouble reading the temperature of its hot water cylinder, which usually means it cannot safely or accurately heat your stored water.
Your boiler has temporarily stopped working because the water inside the domestic hot water circuit has become too hot.
Your boiler is locking out because it cannot detect the water heating up properly when the burners turn on, which usually points to a sensor or circulation problem.
Your boiler has detected that the sensors measuring the temperature of the water inside are giving conflicting readings.
Your boiler has detected that its internal temperature sensors were installed incorrectly during setup or maintenance, meaning it cannot accurately monitor the water flow.
Your boiler has detected an issue with the underfloor heating safety thermostat, which temporarily stops the system to prevent overheating.
Your boiler has automatically shut down because the water pressure inside the system has dropped too low.
Your boiler is just taking a brief, normal rest to stop itself from turning on and off too frequently.
Your boiler is simply registering a request to heat your hot water.
Your boiler is trying to start its internal fan to clear gases safely, but the fan is not responding as expected.
Your boiler is temporarily locked out because it failed to detect a flame when trying to light.
Your boiler has successfully lit its burner and is operating normally to heat your home.
Your boiler is staying in a cooling-down phase for longer than expected because it is trying to move excess heat away from the internal components.
Your boiler is staying in a cooling-down mode because it thinks the air fan is still spinning when it should have stopped.
Your boiler is safely running its water pump for a short period after the heating or hot water turns off to cool itself down properly.
Your boiler has recognised that you have turned on a hot tap and is preparing to heat the water for you.
Your boiler is checking that its internal air fan is working properly before it tries to ignite the flames for your heating and hot water.
Your boiler is trying to light the gas to provide heat or hot water, but the burner is failing to ignite properly.
Your boiler is operating normally and successfully firing up to heat your home.
Your boiler is temporarily running the internal pump or fan to cool itself down after heating your home or water.
Your boiler is currently blowing out leftover exhaust gases through the flue, which is a normal process that happens for a short time after you turn off your heating or hot water.
Your boiler is temporarily running the pump after the heat has turned off to safely cool down the internal components.
Your boiler is temporarily pausing between heating cycles to prevent it from wearing out too quickly, which is a normal protective feature.
Your boiler is perfectly healthy, but it is currently waiting for a signal from your wall-mounted thermostat to tell it to turn the heating on.
Your boiler is currently in summer mode or simply waiting for your room thermostat to tell it that your home needs heat.
Your boiler is temporarily pausing because it has detected an issue with the internal fan speed, waiting to see if it corrects itself before trying again.
Your boiler has detected very cold weather and is running its built-in protection cycle to prevent the internal pipes from freezing.
Your boiler has detected that the safety switch for your underfloor heating system is currently turned off or disconnected, so it has stopped heating that area.
Your boiler has temporarily limited its heating output to protect your floors or system, often because a safety thermostat has been triggered.
Your boiler has detected that the water pressure inside the system has become too high, which may prevent it from operating correctly.
Your boiler is temporarily slowing down because the water inside is getting too hot too quickly, usually caused by blocked water flow.
Your boiler is temporarily pausing because the water pressure inside the system has dropped too low.
Your boiler is currently running a self-test on its water pressure system, which temporarily blocks your heating from turning on.
Your boiler is temporarily checking the temperature of the water returning from your radiators to make sure everything is working properly.
Your boiler is currently topping up its internal water pressure automatically.
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BoilerFaultCodes