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2928
2928
Internal fault
Worcester Bosch Greenstar 4000 (from May 2021)
Category
V
Remedy
▶ Restart appliance.
▶ If the fault persists following a reset, the burner control unit is faulty and must be replaced, (replace control unit).
This code also applies to:
Greenstar 4000 (before May 2021)
Source:
Manufacturer manual (PDF)
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