Glow-worm Ultimate 3 25R Fault codes & diagnostics

Your boiler's main internal computer and the front control panel have lost contact, meaning the system cannot receive instructions to provide heating or hot water.

Your boiler has stopped working because it is unable to accurately measure the temperature of the water flowing through the system.

Your boiler has stopped working because it is unable to accurately measure the temperature of the water returning to the system, causing the unit to shut down as a precaution.

Your boiler has stopped working because a sensor that measures the temperature of the water leaving the boiler is sending a faulty signal to the internal computer.

Your boiler has detected a faulty reading from its internal temperature sensor, causing it to shut down for safety reasons.

Your boiler has detected that it is getting too hot and has automatically switched itself off to prevent any 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 water inside it is heating up much faster than it is moving away, causing the system to shut down to prevent damage.

Your boiler has detected that the water inside it is heating up much too quickly, so it has shut itself down to prevent damage.

Your boiler has stopped working because it cannot confirm that the internal flame is safely lit, so it has shut down to prevent gas from escaping.

Your boiler is failing to light the flame, which means it cannot produce any heat or hot water.

Your boiler has stopped working because it cannot keep its internal flame lit, which means it is unable to produce heat or hot water.

Your boiler has detected that the internal fan responsible for moving air is not spinning at the correct speed or is being held back by a loose connection.

Your boiler's communication system is experiencing an electrical issue, which is likely preventing it from receiving the signal to turn on your heating or hot water.

Your boiler's internal computer is experiencing a memory error, meaning it has lost its settings and cannot safely manage the heating process.

Your boiler has detected a faulty signal from its internal sensors, which means it cannot accurately measure the temperature of the water flowing through it and has safely shut down to prevent damage.

Your boiler's computer system is getting too hot and has automatically shut down to prevent permanent damage.

Your boiler's computer is struggling to read its own flame sensor correctly, causing it to shut down to stay safe.

Your boiler is struggling to keep its flame lit because it is receiving an inconsistent supply of fuel or air.

Your boiler has lost its identity settings, usually because a part was recently replaced and not correctly programmed to match your specific model.

Your boiler is confused because it is getting incorrect information about how hot the water is inside the system, so it has stopped working as a safety precaution.

Your boiler has detected that the water temperature is behaving unexpectedly, suggesting that its internal heat sensors are likely providing conflicting or inaccurate information.

Your boiler has lost the ability to measure how much water pressure it has because the safety sensor inside has developed an electrical fault or become unplugged.

Your boiler is having trouble reading the internal water pressure, which prevents it from firing up safely.

Your boiler is struggling to detect the water pressure inside the system, which is preventing it from firing up safely.

Your boiler is failing to detect a rise in water temperature when the flame ignites, which usually means there is air trapped inside or not enough water circulating through the system.

Your boiler has detected that its internal temperature sensors are either disconnected or have been accidentally moved to the wrong pipes during installation or maintenance work.

Your boiler is failing to light the internal flame, which means it cannot produce heating or hot water for your home.

Your boiler has lost the secure electrical connection required to control the gas supply, meaning it cannot ignite safely until this link is restored.

Your boiler is unable to move water through the system, which means it cannot heat your radiators or tap water.

Your boiler has stopped working because the water pressure inside the system has dropped too low to operate safely.

Your boiler is not receiving any power, which means it cannot turn on to provide heating or hot water.

Your boiler has stopped working because it has either lost water pressure or a safety sensor has detected that it is getting too hot.

Your boiler is failing to clear combustion gases properly, which means the safety system has turned the unit off to prevent it from operating until the airflow problem is resolved.

Your boiler is failing to light the flame needed to produce heat or hot water, usually because of an issue with the gas supply or the ignition system.