Thanks for your reply, much appreciated. I did think that the valve could be causing the problem having read this site and it's content - which is great.
I think the reason the installers said that is because they are stacked with 'new work' at the minute.
Thanks again
Hi there hoping someone can help
I recently had installed a brand new combi-boiler system and radiators.
System Configuration:
Boiler
Make: Worcester-Bosch
Model: Greenstar 24i Junior
Radiators
Make: Stelrad
Model: Compact
TVR's fitted on all radiators including the affected...