Help!
I just noticed the water temperature had dropped massively and no water was heating up.
I must have knocked something. Its this...
Pushed it in and the water temperature rapidly increases and won't stop and keeps creeping up. So it goes from one extreme to the other. If I leave the cable out temp it shoots up, if I take it out it drops massively. And that is without the ASHP hot.water turned on so maybe its just showing the temp wrong! Eek what have I done?