Central Heating Active (Green) Low

Firebird Central Heating Active (Green) Fault Code

Also written as CENTRALHEATINGACTIVEGREEN — same fault.

The Firebird Central Heating Active (Green) fault code means: your boiler is working correctly and is currently providing heat to your radiators as requested by your thermostat.. It appears on 1 Firebird model in our database.

Monitor it

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: This indicates that the central heating system is active. A solid green light typically means normal operation.
Typical repair cost £0 (including labour)

DIY fix possible

No action is required as this indicates normal operation.If you want the heating to turn off, lower the temperature on your room thermostat.Check that your heating timer or programmer is set to the 'Off' or 'Timed' position if you did not expect the heating to be on.

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Firebird models that show the Central Heating Active (Green) fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Firebird Central Heating Active (Green) fault code information on this page is sourced and cross-checked against the official Firebird service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026