Potterton Suprima HE Fault codes & diagnostics

Your boiler has become too hot and has automatically turned itself off as a safety precaution to prevent damage.

Your boiler has stopped working because the internal fan, which is responsible for safely venting exhaust gases, has failed to start properly.

Your boiler is failing to start because it is not receiving enough electricity from your home's power supply.

Your boiler has detected that it is getting too hot and has automatically shut itself down to prevent damage.

Your boiler has detected that the electricity supply wires are connected the wrong way around, which prevents it from operating safely.

Your boiler has failed to ignite several times and has shut down as a safety precaution.

Your boiler has detected that it is running too hot and has automatically shut down to prevent damage, meaning you currently have no heating or hot water.

Your boiler has switched itself off because it got too hot, likely due to a temporary blockage or a pump issue, and it needs to be manually restarted once it has cooled down.

Your boiler has detected an electrical safety issue where the power supply wires are connected in the wrong order.

Your boiler has stopped working because it failed to light the flame after several attempts and now needs a manual reset.

Your boiler has failed to start up or stay burning, so it has automatically shut down for safety.

Your boiler has detected that it is running too hot and has automatically shut itself down to prevent damage.

Your boiler has failed to start after several attempts, likely because it cannot detect a flame or successfully ignite the gas.

Your boiler has failed to start up or stay lit and has now shut itself down for safety, meaning you currently have no heating or hot water.

Your boiler has stopped working because it cannot maintain a stable flame or there is a blockage in the pipe that drains away moisture produced during operation.

Your boiler is struggling to clear exhaust fumes or draw in fresh air, so it has safely shut down to prevent any risk of harmful gases escaping.

Your boiler is struggling to circulate water, most likely because the pressure inside your system has dropped too low to operate safely.

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

Your boiler has lost the ability to accurately measure the temperature of the water being sent to your radiators, so it has safely shut down to prevent overheating.

Your boiler has no power arriving to it, meaning the status lights are completely dark and the system cannot start.

Your boiler has detected an issue with its internal ventilation system four times in a row, causing it to shut down for safety reasons.

Your boiler has detected that a safety sensor is stuck in the 'on' position before the fan has even started, so it has stopped working as a precaution.

Your boiler has lost the ability to accurately measure the temperature of its internal heat exchanger, so it has safely shut down to prevent overheating.

Your boiler has detected that hot water is not flowing through your heating system correctly, which is causing it to shut down to prevent overheating.

Your boiler has detected that hot water isn't moving around your radiators or pipes properly and has shut itself down to prevent overheating.

Your boiler is failing to detect the necessary electrical power to operate, which may be caused by a loose wire or an issue with your heating controls.

Your boiler has stopped working because it cannot accurately measure the temperature of the water flowing through the system.

Your boiler has stopped working because it failed to light the flame after several attempts, so it has shut itself down for safety.

Your boiler has failed to start after several attempts and is now safely preventing itself from turning on to protect your home.

Your boiler has stopped working because it failed to light properly, resulting in a lockout safety shutdown.

Your boiler has stopped working because it couldn't safely ignite the flame after several attempts, so it has shut down to protect itself.

Your boiler has completely lost the electrical signal it needs to start running, meaning it is currently unable to provide any heating or hot water.

Your boiler has automatically turned itself off because it has become dangerously hot and needs to cool down before it can be used again.

Your boiler has switched itself off because it has become too hot and needs a manual reset to restart.

Your boiler has detected that it has become too hot and has automatically shut itself down to prevent internal damage.

Your boiler has detected that it is running too hot and has automatically shut itself down to prevent damage.

Your boiler's internal computer has stopped working correctly and is no longer able to safely manage the heating system.

Your boiler has no power, which usually means the electricity supply has been cut off or a fuse has blown inside the unit.

Your boiler has detected a safety concern or internal error and has automatically switched itself off to prevent damage.

Your boiler has lost the signal that tells it to turn on, or a internal electrical component is preventing it from starting.

Your boiler has detected an issue with the sensor that monitors its temperature, which prevents it from heating your home or water safely.