Your boiler is currently performing an internal health check on its sensors and has temporarily paused heating and hot water to ensure everything is functioning safely.

DIY fix possible

Check the digital or analog pressure gauge to ensure it is between 1.0 and 1.5 barIdentify if the system has recently been refilled, as the boiler may be performing a self-testWait for the cycle to finish as the boiler usually resumes normal operation within a few minutesReset the boiler if the code remains on the screen for more than 15 minutes