Indeed, and what is very annoying is that even when the boiler output is well above its minimum output that the flow temperature can be 2 to 3 deg higher than the target flow temperature even under steady demand conditions, completely unacceptable, IMO, because the burner trips (shuts down) at target temp +5C, if a heating zone is shut down then its very likely that the flow temp will rise by a few degrees and will trip the burner, leading to recycling.Here is a thread with this same issue on another forum, looks like WB have an issue with these boilers….
Worcester Bosch Greenstar 8000 System Boiler Issues
Hi all, This one is turning into a bit of a saga... but, I've been having a hate / hate relationship with a boiler we had fitted a couple years back. Now it's getting colder again and we've started to use this boiler again, it still has issues. I'm hoping to get some help diagnosing what the prob...forum.buildhub.org.uk
Bypass valve
- Thread starter toneloc
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