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604

System fault burner control unit

Worcester Bosch Greenstar 1000 Combi

Category
V
Remedy
▶ Reset appliance - factory reset.
▶ If the fault persists following a reset, the burner control unit is faulty and must be replaced.
This code also applies to:
Greenstar 2000 CombiGreenstar 8000 F CombiGreenstar 8000 F RegularGreenstar 8000+ StyleGreenstar 8000+
Source: Manufacturer manual (PDF)
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