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Boiler in standby, no heat energy demand

Worcester Bosch Greenstar 4000 Combi

Category
O
Remedy
Operating message, is not a fault.
▶ Appliance in standby, awaiting a demand request.
This code also applies to:
Condens 7000 WPGreenstar 1000 CombiGreenstar 2000 CombiGreenstar 4000 SystemGreenstar 8000 F CombiGreenstar 8000 F RegularGreenstar 8000+ StyleGreenstar 8000+
Source: Manufacturer manual (PDF)
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