Worcester Bosch Greenstar Regular Boiler - Always ON plumbing advice

Worcester Bosch Greenstar Regular Boiler - Always ON Morning all,

I've noticed very recently that our Worcester Bosch Boiler is constantly ON and making a fair bit of noise.

The flame is not on, but certainly sounds like the pump is running, AND the water temperature does seem high considering we've not had any demand for it for a good 48hrs or so. Boiler is a 40cdi Greenstar Regular, Setup CH only and an unvented cylinder.

I recorded a video to help describe what i'm seeing/hearing, that can be found HERE

My questions are
:-is this easy to fix?
:-if not, is it expensive to leave it like this till i get an engineer out? (ironically i think this started happening after it's last service a couple weeks back!.. so hoping it's just a setting they've wrongly activated)


thanks for your help all,

Ged

Worcester Bosch Greenstar Regular Boiler - Always ON to read more on the original thread at Plumbing Advice

See also UK Plumbing Advice for all UK plumbing advice needs.
 

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