BoilerFaultCodesYour boiler is operating normally and is currently providing heat for your radiators.
This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.
Technical description: HTG mode; the boiler operates in the HTG mode.
What causes this fault?
This is not actually a fault, but a status message indicating that your boiler is currently working to heat your home. It appears when the internal controls have successfully triggered the burner to provide warm water for your radiators. You do not need to take any action as this shows the system is performing exactly as intended.
This code is most frequently seen during Autumn and Winter when the outdoor temperature drops and your central heating is programmed to come on.
DIY fix possible
This fault may be fixable without an engineer. Check your manual first.
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A boiler cover plan would cover faults like 3 — no call-out fees, no surprises.
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