BoilerFaultCodesWhat the manual says
Manufacturer manualBoiler in heating mode
What causes this fault?
This is a normal operational status message and not a mechanical failure. It appears when the boiler's internal controls detect a demand for warmth from your thermostat and ignite the burner to circulate hot water to your radiators. You will see this code whenever your heating is functioning exactly as intended.
This code is most frequently seen during autumn and winter when homeowners activate their heating systems for the first time or during cold spells.
DIY fix possible
Check your thermostat to ensure the target temperature is set correctly.Wait for the house to reach temperature; the code will change once the heating demand is met.No action is required as this is an operational status code, not an error.
Avoid the next call-out bill
Monthly cover means no unexpected bills when your boiler breaks down.
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