Keston System 30 Fault codes & diagnostics

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

Your boiler has successfully lit but has suddenly lost its flame, meaning it cannot heat your home or water.

Your boiler has detected that the internal component responsible for pushing air through the unit to ensure safe combustion is not spinning or communicating correctly, causing the boiler to shut down to prevent unsafe operation.

Your boiler has detected an issue with the sensor that measures water flow, so it has safely shut down to prevent overheating.

Your boiler is currently unable to read the temperature of the water coming back into it, so it has shut down to prevent potential overheating.

Your boiler is receiving an inadequate supply of electricity from your home's main power grid, preventing it from operating safely.

Your boiler’s internal computer has lost its settings or has developed a software defect, preventing the system from operating correctly.

Your boiler's computer has lost its internal programming or has developed a hardware error, meaning it cannot currently operate safely or effectively.

Your boiler has lit up, but it cannot keep the flame going, so it has safely shut itself down to prevent gas from escaping.

Your boiler has detected that the water inside it is getting dangerously hot because it cannot circulate through your radiators effectively.

Your boiler has shut itself down because the water inside is either getting too hot or is not circulating properly.

Your boiler has failed to light the flame, so it has safely shut itself down to prevent a gas build-up.

Your boiler has detected that it cannot accurately measure the water temperature, meaning it has safely shut down to prevent potential overheating.

Your boiler is experiencing an issue where it cannot accurately measure the temperature of the water returning to it, so it has stopped working as a safety precaution.

Your boiler's computer system has lost its internal settings, meaning it no longer knows how to operate your heating and hot water correctly.

Your boiler's electronic controller is failing to recognise its own settings, meaning it cannot safely operate your heating or hot water.

Your boiler has stopped working because it failed to ignite several times in a short period and has locked itself for safety.

Your boiler is struggling to keep its flame lit, so it has safely shut itself down to prevent any issues.