BoilerFaultCodesWhat the manual says
Manufacturer manualHeating mode – burner ignited
From this model's manual
Verified against the Vaillant Ecotec Pro Ecotec Plus Combi installation & service manual, page 43.
What causes this fault?
This is not actually a fault, but a status message indicating that your boiler is working correctly. It appears because the system has received a request for warmth and has successfully lit the burner to heat the water for your radiators.
You will see this code more frequently during the autumn and winter months when your central heating is scheduled to be active.
DIY fix possible
No action is required as this is a status code, not an error.Adjust your thermostat or timer if you do not want the heating on.Wait for the boiler to reach the set temperature and the status will change.
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