Worcester Bosch Greenstar 4000 System 2948 – No flame signal with low output

2948

No flame signal with low output

Worcester Bosch Greenstar 4000 System

Category

Remedy

Burner starts automatically after purging. This can be caused by strong winds.
If this fault occurs frequently:
▶ Check CO2 settings.
▶ Check flue outlet position for effects of excessive wind pressure.
▶ Check flue integrity.

This code also applies to:

Condens 7000 WP Greenstar 1000 Combi Greenstar 2000 Combi Greenstar 4000 Combi Greenstar 8000 F Combi Greenstar 8000 F Regular Greenstar 8000+ Style Greenstar 8000+

Source: Manufacturer manual (PDF)