Hi Again,
Thanks for all your replies sounds like i should get a power flush and a new DHW Heat Exchanger. will give it a try.
Thanks again all for your time :D
p.s just out of interest can i not just flush the system with some sort of chemical a few times insted of the expensive option...
Hi,
I am just looking for a bit of advice about my Combi Boiler. The CH side of it works fine no problem :D but the DHW side keeps going hot and cold at a constant temp, it ignites at 30oC and cuts out at 44oC then reignites again at 30oC this is a constant fault :( anyone got any thoughts...