This is all total rubbish and so frustrating! These guys clearly have no idea what they are doing! They won't be happy until they have re-plumbed the whole house, replaced the boiler and taken all of this poor woman's money!! Disgraceful!!
I'd be interested to know where u are too?
Yep! It's the only thing I don't like about those older vailants...I'm my experience it's affected both CH and HW when the rubber hose is blocked... not saying it wouldn't be that tho buddy.
Oh come on! It's the most common problem in this situation! The rubber hose is a good call but there would be no heating either...every job I've been to with these symptoms has been the plate h-ex! Bet there's no scale reducer fitted!
I'd say it was as it works for about 30 secs.... I went to one last week doing exactly the same thing....removed it, de-scaled it, refitted....perfect!