Worcester Bosch CDi Highflow Fault codes & diagnostics

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

Your boiler's electronic controls have lost their connection, meaning the main brain cannot communicate with the internal components to start heating or hot water.

Your boiler's computer is struggling to read its internal configuration settings, which prevents it from starting up correctly.

Your boiler's computer is having trouble reading its internal instructions, which means it cannot safely operate the heating or hot water.

Your boiler's computer is having a communication breakdown and cannot send signals to the internal parts correctly.

Your boiler's computer is experiencing an internal communication failure, which means the system cannot safely operate and requires professional intervention.

Your boiler's internal computer is experiencing a communication error, meaning the system can no longer operate your heating or hot water safely.

Your boiler's internal computer is experiencing a communication error and is unable to operate safely, meaning your heating and hot water will be unavailable.

Your boiler's electronic brain is unable to process information correctly, which means it has stopped working as a safety precaution.

Your boiler's computer has detected an internal communication failure, meaning it cannot safely ignite or operate your heating system.

Your boiler has switched itself off because the internal air circulation fan is not spinning fast enough to safely vent gases.

Your boiler has detected that water is moving too quickly through its internal system, which prevents it from heating the water properly.

Your boiler has stopped working because a safety link that tells the system it is safe to operate has become disconnected or faulty.

Your boiler is struggling to get rid of the internal waste water it creates while running, causing it to shut down to prevent internal damage.

Your boiler's hot water storage tank is overfilling, preventing it from functioning correctly.

Your boiler has lost the ability to accurately measure the temperature of the water flowing through it, so it has shut down as a precaution to prevent overheating.

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

Your boiler is trying to start but the flame is not catching, meaning you currently have no heating or hot water.

Your boiler has detected a serious internal system error that prevents it from operating safely.

Your boiler's computer board is experiencing a internal electronic fault that is preventing it from starting up correctly.