Atag Premier Fault codes & diagnostics

Your boiler has detected that the water pressure inside your heating system is too low, meaning it needs to be topped up with more water to work correctly.

Your boiler is struggling to light the burner safely and has stopped working to prevent potential issues.

Your boiler has detected an external safety signal, such as a fire alarm or frost thermostat, which has instructed the unit to shut down for safety reasons.

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

Your boiler is overheating internally, so it has shut down as a safety precaution to prevent damage.

Your boiler has detected an interruption to its power supply or a electrical signal glitch that has caused it to stop working.

Your boiler's internal computer has encountered a critical error and is unable to safely manage the heating process, causing the system to shut down.

Your boiler has detected that the water inside the system is overheating because it cannot move around your radiators fast enough.

Your boiler has shut down because the water returning to it from your radiators is too hot, suggesting the system is struggling to move or cool the water effectively.

Your boiler has stopped working because it cannot confirm that the internal fan, which is essential for venting waste gases, is spinning correctly.

Your boiler's internal settings have been incorrectly configured, preventing it from knowing the correct power levels needed to operate safely.

Your boiler has automatically shut down because the exhaust gases getting too hot, likely due to a flow issue or a sensor misreading.

Your boiler has detected that a critical safety sensor responsible for monitoring exhaust gases has become disconnected, so it has safely shut itself down to prevent operation until the issue is fixed.

Your boiler has detected a faulty electrical signal from its exhaust monitoring system, which has forced the unit to shut down to prevent potential overheating.

Your boiler has stopped working because an external safety device, such as a frost thermostat or a cylinder cut-off, has sent a signal that it needs to shut the system down.

Your boiler has automatically paused itself because the exhaust gases getting rid of the fumes have become dangerously hot.

Your boiler has detected a faulty reading from a safety sensor in the exhaust system and has stopped working to prevent any potential damage.

Your boiler is pausing because it cannot detect water moving through the system, so it is running an automatic process to clear trapped air before retrying.

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

Your boiler has detected that the water pressure inside the system is too low for it to operate safely.

Your boiler is struggling to light correctly or stay lit, which means the system has safely shut itself down to prevent any issues.

Your boiler has detected an electrical fault in its internal control system that is preventing it from operating safely.

Your boiler is trying to start up but is failing to light the burner, meaning you currently have no heating or hot water.

Your boiler has detected that the internal components are getting too hot, so it has safely shut itself down to prevent any damage.

Your boiler has detected an issue with its electrical power supply or an internal electronic processing error.

Your boiler has detected an internal fault with its main electronic computer system, causing it to shut down for safety reasons.

Your boiler has stopped working because an internal electrical protection fuse has blown, cutting power to the control system.

Your boiler has detected that the water returning from your radiators is too hot, causing it to shut down to prevent damage.

Your boiler has stopped working because it cannot confirm that the internal fan, which is essential for safely venting combustion gases, is spinning correctly.

Your boiler has stopped working because the water pressure inside the system has become too high, which is a safety mechanism to prevent damage.