Ideal Logic SYSTEM2 S18 Fault codes & diagnostics

Your boiler has detected that the water leaving it is much hotter than the water returning to it, meaning it cannot circulate heat through your home properly.

Your boiler has stopped working because the water pressure inside the heating system has dropped below the required level.

Your boiler has lit up but the flame has unexpectedly gone out, causing the system to stop working as a safety precaution.

Your boiler is failing to stay lit, which means it has safely shut down because it cannot maintain a stable flame to provide your heating and hot water.

Your boiler has detected an issue with its internal air extraction system, which is preventing it from safely lighting and operating.

Your boiler's temperature sensor is providing incorrect readings or has disconnected, so the system has safely shut down to prevent overheating.

Your boiler has stopped working because a sensor that measures the water temperature is failing to send a signal, meaning the system cannot safely regulate your heating.

Your boiler has lost the ability to accurately measure the temperature of the water returning to it, so it has shut down as a precaution to prevent overheating.

Your boiler has stopped working because a sensor that measures the temperature of the water returning to it has stopped sending a reliable signal.

Your boiler has detected that the electricity coming into your home is weaker than it should be, preventing the boiler from functioning reliably.

Your boiler's internal computer is experiencing a critical error and can no longer safely control the system, meaning the boiler will not function until the unit is serviced.

Your boiler is failing to ignite the flame needed to produce heat and hot water because of an internal electrical connection or component issue.

Your boiler has detected that the water pump is stuck and cannot move the water around your heating system properly, which has caused the boiler to switch itself off.

Your boiler has detected that the internal mechanism responsible for circulating hot water around your home's radiators and taps has stopped working correctly.

Your boiler has detected that the electricity coming into your home is outside the safe operating range, which requires a check from your local power supplier.

Your boiler has detected that the water pump responsible for circulating heat around your home has stopped working correctly.

Your boiler has detected an issue with the component that controls the gas supply, meaning it has safely shut down to prevent any unsafe operation.

Your boiler is unable to move hot water around your home because the central pump responsible for circulation has stopped working.

Your boiler is repeatedly attempts to start up and failing, causing it to lock itself out for safety after five unsuccessful tries.

Your boiler has stopped working because it cannot properly clear away the leftover gases or moisture it creates while running.

Your boiler has detected that it is getting too hot and has automatically switched itself off to prevent any damage.

Your boiler has failed to light the flame, so it has safely shut itself down to prevent any unburned gas from building up.

Your boiler has lost the ability to accurately measure the temperature of the water flowing through it, so it has safely shut down to prevent overheating.

Your boiler is currently unable to read the temperature of the water returning to it, so it has shut down to prevent potential damage.