BoilerFaultCodesYour boiler is currently operating normally and is telling you that it is actively heating 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: Heating mode
What causes this fault?
This code appears when the boiler's internal controls detect a demand for central heating from your thermostat. It indicates that the gas burner has ignited and the pump is successfully circulating hot water to your radiators. Rather than being a failure, it is a confirmation that the system is responding correctly to your heating settings.
This code is most frequently seen during autumn and winter when homeowners turn their thermostats up to begin heating their properties.
DIY fix possible
No action is required as this is an operational status code rather than a fault.Check your thermostat settings if the heating is on when you do not want it to be.If the radiators are cold despite this code being displayed, contact a professional to check for circulation issues.
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A boiler cover plan would cover faults like 3 — no call-out fees, no surprises.
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