Potterton Promax Heat Only Fault codes & diagnostics

Your boiler has stopped working because it cannot properly clear exhaust gases, so it has shut down as a safety precaution.

Your boiler is not receiving enough electricity to work properly, which may be caused by a fault in your home's wiring or a problem with your local power supply.

Your boiler has detected that it reached a dangerous temperature and has safely shut itself down to prevent damage.

Your boiler's electronic control centre has developed a internal fault and is unable to safely manage the heating process, meaning the unit will not start.

Your boiler's central control computer has encountered a critical error and is unable to operate correctly.

Your boiler has stopped working because the internal fan, which clears exhaust gases, is failing to start or run correctly.

Your boiler is receiving an insufficient amount of electricity to operate correctly, which is usually caused by an issue with your home's power supply rather than a fault within the boiler itself.

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

Your boiler's internal computer has developed an electronic fault and is no longer able to communicate with the rest of the system to turn on your heating.

Your boiler's main control computer is experiencing an internal error and can no longer safely manage the heating system.

Your boiler has detected that it is running without enough water inside, which means it has safely shut itself down to prevent damage to its internal parts.

Your boiler has detected that the incoming electricity supply has been wired backwards at the point of connection, which prevents it from operating safely.

Your boiler's electronic command center has encountered a serious internal error and can no longer control the heating system safely.

Your boiler has detected that there is not enough water inside the system to operate safely, which can cause internal damage.

Your boiler is struggling to accurately detect its own internal temperature, which has caused it to stop working to avoid potential damage.

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

Your boiler's internal computer has encountered a critical error and is no longer able to manage the heating system safely.

Your boiler has failed to light because it cannot detect a flame, so it has safely shut itself down to prevent any gas buildup.

Your boiler has completely lost power and is unable to turn on because it is not receiving any electricity.

Your boiler has lost its electrical signal, meaning it cannot receive the command to turn on and provide heating or hot water.

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

Your boiler is struggling to communicate with its internal control system because a wire connection has likely become loose.

Your boiler has detected that it has become too hot and has automatically shut itself down to prevent damage, requiring you to manually restart it.

Your boiler's internal computer is malfunctioning, meaning the system cannot reliably control itself and has safely shut down to prevent further issues.