I've recently replaced my (very) old (pre built-in wifi) controller with a brand new one. Lovely, except...
The hot water is way too hot and I can't figure out why. It's set to 50, no overrun, 5 degree offset, but it's constantly being heated to 60. At a loss to see why. Any ideas? It was all working so well until I upgraded the controller.
Images in link - you can see the system is calling for hot water heating despite already being at 60!
Hi, the hot water icon is red because of the schedule. Since there is no flame symbol I think the Evohome isn't asking to heat it.
I had this kind of issue when my CS92A was badly positioned. At that time it basically worked, but frequently overheated the water (up to >70°C). I've changed the CS92A position and since then it didn't happen any more.
Note that you can extend the wires of the temperature sensor if needed.
