The DHW side is running spot on now. I think the split hose caused a sudden loss of pressure resulting in most of the crap coming out, leaving the solid crusty bits. There was a fair amount of sludge as well. I think the boiler was made in 2001 and fitted in dec 2002. Am I correct saying the new...
Hi. My first post. had vaillant 828 for 5 years now. A heating engineer said it was the dogs whatsits, so I got 1. British gas fitted it :( Problems from day 1.
DHW heat was colder in winter due to colder water coming in. Flow was poor. they said screw in valve to reduce incoming flow :( So I...