I can't turn the heating elements off. I can only select position one as the minimum but if the Low Pressure light comes on then all heating elements will switch off.
If I turn it up a bit at a time eventually the Low pressure light will go off and the water becomes scalding hot.
It's never been like that and it used to work fine.
I'll check my water meter stop cock in the morning.
I've got a very strange problem with my Mira Sprint 8.5Kw electric shower.
The water temperature is way too hot so I try to make it colder by turning down the temperature control and the low pressure light comes on making the water goes tap mains cold.
If I turn the temperature control back up...