Worcester Bosch Ri 25 HE Fault codes & diagnostics

Your boiler has detected that the water pump is not moving water correctly, which often happens because there is air trapped in the system or the pressure is too low.

Your boiler's electronic brains are struggling to talk to each other, so the system has shut down to prevent incorrect operation.

Your boiler's internal fan is stuck running continuously, which prevents the system from starting up correctly or shutting down as it should.

Your boiler has stopped working because it is unable to accurately measure the temperature of the water returning to it, so it has shut down as a precaution.

Your boiler's main computer chip has encountered an internal error and cannot communicate properly to start the heating process.

Your boiler has detected an internal software or electronic communication error that prevents it from starting up safely.

Your boiler's electronic control system is failing to communicate with the display screen, meaning the unit cannot show status information or process commands.