Over the weekend I have been looking into the problem more. I can get the hot water to come out at a decent temperature when the heating is on by changing the settings for D73 (Warmstart offset Temperature), which makes it possible to change the setting D7 (warmstart temperature) to a higher...
Thanks for that, I had a look into it when I got back from work and found the following.
D40 was at 32 then when I ran the hot water it rose to 38.
D41 had no value associated with it.
D7 was set at 39.
When I played with the hot water temperature control dial, turning it up to...
I am hoping someone can help, as I have looked through this very helpful forum and nothing matches my boilers symptoms!
I have a Vaillant turbomax plus 828E and when the heating is not on and hot water is demanded the water comes out luke warm, the temperature on the display reads just under...