Glow-worm Ultimate 2 25s Fault codes & diagnostics

Your boiler is unable to measure the temperature of the water inside it, so it has safely shut down to prevent overheating.

Your boiler is struggling to accurately measure the temperature of the water returning to it, so it has stopped working to prevent potential overheating.

Your boiler has stopped working because it is unable to accurately measure the temperature of the water inside it, likely due to a faulty sensor or damaged wiring.

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

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 fuel inside, meaning it cannot produce heat or hot water because it hasn't detected a flame.

Your boiler is trying to start but the flame keeps going out, meaning it cannot produce heat or hot water.

Your boiler has detected that the internal fan responsible for clearing exhaust gases is not spinning at the correct speed to operate safely.

Your boiler has detected an issue with the airflow system which is preventing it from starting safely.

Your boiler's internal communication system is struggling to transmit data because the electrical signal between its components is too weak.

Your boiler has detected a communication issue with the part that controls the flow of gas, and it has stopped working for your safety.

Your boiler has detected an issue with the valve that controls the gas supply, causing it to shut down for safety reasons.

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 an internal computer processing error, causing it to shut down for safety reasons to prevent incorrect operation.

Your boiler has detected that its internal computer components are overheating, so it has safely shut itself down to prevent any damage.

Your boiler has detected an internal electronic error while trying to monitor the flame, causing it to shut down for safety.

Your boiler is struggling to keep the flame alight consistently, causing it to shut down for safety reasons.

Your boiler's computer has lost its identity settings, preventing it from knowing how to function correctly.

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

Your boiler is struggling to accurately measure its internal water pressure or temperature, preventing it from operating safely.

Your boiler is unable to read the water pressure level because the sensor responsible for checking it is faulty or disconnected, preventing the boiler from starting safely.

Your boiler is having trouble accurately reading the internal water pressure due to a faulty electrical connection or sensor.

Your boiler is struggling to detect the water pressure inside the system because the sensor is failing to provide a clear reading.

Your boiler has detected that water is failing to drain away properly or there is an issue with the exhaust system, causing it to shut down for safety.

Your boiler has detected that the water temperature readings are inconsistent or not changing as expected when the burner is lit, so it has shut down to prevent damage.

Your boiler is struggling to accurately measure the temperature of the water circulating through your heating system, so it has stopped working as a safety precaution.

Your boiler has detected that a temperature sensor is not providing the correct data, which is preventing the system from safely heating your water.

Your boiler is failing to light the burner because it cannot detect the spark needed to start the heating process.

Your boiler is unable to control the gas supply it needs to ignite, which means your heating and hot water have stopped working.

Your boiler has detected that the water pump responsible for circulating heat is not working correctly, which means your heating and hot water will stop functioning until the issue is addressed.