Our house had a new ravenheat B&Q combi special fitted about 5 yrs ago when we bought it. Always has been a pain in arse with various problems, but currently have a odd one....

Central heating side is fine, Hot water though only get luke warm no matter how high you have setting, you have to throttle tap back by over half to get it hot enough to wash in etc, Baths are never hot enough.

Any ideas??????