Atag E22c Fault codes & diagnostics

Your boiler's internal computer settings for its power output have been lost or changed, which is preventing it from firing up correctly.

Your boiler has automatically shut down because the internal exhaust gases have become dangerously hot, and it will remain off until it cools down to a safe level.

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.

Your boiler has stopped working because a sensor that monitors its exhaust fumes is reporting a fault, so the system has shut down as a safety precaution.

Your boiler is temporarily pausing because it cannot detect enough water moving through the system and is attempting to clear air bubbles before it restarts.

Your boiler has detected that the electricity supply coming from your wall socket is unstable and outside the normal operating range, meaning it cannot run safely.

Your boiler has detected an internal logic error and has locked itself out to prevent potential damage, meaning you currently have no heating or hot water.

Your boiler has detected an internal logic error and has safely shut itself down to prevent potential damage.

Your boiler has detected an issue with its internal safety or pressure monitoring system which has caused it to stop working to avoid potential damage.

Your boiler has detected a series of internal faults that are preventing it from operating safely, causing it to lock itself out.

Your boiler has detected a recurring internal fault that is preventing it from operating safely, requiring a professional to reset and troubleshoot the control system.

Your boiler is struggling to light correctly or stay lit, which means it cannot produce any heat or hot water.

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

Your boiler is failing to light the internal flame needed to produce heat and hot water.

Your boiler has detected an internal communication error and has safely shut itself down to prevent further issues.

Your boiler's internal computer is having a communication error, which has caused it to shut down to prevent any potential damage.

Your boiler has stopped working because an internal safety fuse has blown, cutting off the power needed for its control systems to operate.

Your boiler's main computer is having trouble communicating properly, which has caused the system to stop working as a safety precaution.

Your boiler has detected that the internal fan responsible for clearing exhaust gases is not spinning correctly, and it has safely shut itself down to prevent unsafe operation.

Your boiler has detected too much water pressure in the system, which can put unnecessary strain on your pipes and internal components.

Your boiler is telling you that the internal water pressure is too low, so you need to open your filling loop to top it up to the correct level.