Hi, Hopefully someone can help me? I unfortunately have a Ravenheat RSF84ET, about 3 years old. Heating works fine but the hot water wont remain at a constant temp (which is a bit of a pain in the shower) Plumber has replaced Burner PCV Board no difference and Potentiometer still no difference any ideas? I have spent £200 so far don’t want to throw any more money on a cr~p boiler!!
Cheers
Cheers