Worcester Bosch 532 / 537 / 542 Fault codes & diagnostics

Your boiler has detected that there is not enough water circulating inside the system to operate safely.

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

Your boiler's internal computer is failing to communicate with a small memory chip that tells it how to operate, causing the system to shut down for safety.

Your boiler is struggling to read its own internal water temperature because a sensor has stopped working correctly, which will likely prevent it from heating your home.

Your boiler's computer has lost track of what specific model it is because a small plastic identification chip has become loose or disconnected.

Your boiler is unable to read the temperature of the water used for your radiators, causing it to shut down for safety.

Your boiler has detected that the water inside the heating system has become too hot and has automatically shut itself down to prevent damage.

Your boiler has detected that the internal fan responsible for venting exhaust gases is not spinning fast enough, so it has shut down as a safety precaution.

Your boiler is trying to start but the flame is not catching, so it has shut itself down as a safety precaution.

Your boiler's internal computer is experiencing a communication fault, which has caused it to stop working to avoid potential damage.

Your boiler has stopped working because it has lost the water pressure needed to circulate heat throughout your home.