Technical description
Live Monitor status check for heat requirement/combustion
What causes this fault?
This code appears when the boiler's internal burner has successfully ignited and is currently generating heat for your radiators or hot water. It is not a fault, but rather a status message indicating that the system is working exactly as intended. You will see this whenever the thermostat or a hot tap calls for energy.
DIY fix possible
No action is required as this is an advisory status code, not a fault.Check your room thermostat or app to confirm your heating is set to the desired temperature.Observe the display to see if the code changes as the boiler completes its cycle.