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2923

Unexpected feedback from the modulating/ current controlled gas valve

Worcester Bosch Greenstar 1000 Combi

Category
V
Remedy
Possible control unit fault, check the control unit.
This code also applies to:
Condens 7000 WPGreenstar 2000 CombiGreenstar 4000 CombiGreenstar 4000 SystemGreenstar 8000 F CombiGreenstar 8000 F RegularGreenstar 8000+ StyleGreenstar 8000+
Source: Manufacturer manual (PDF)
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