Recent content by Billy Fish73

Thanks

The plumber has checked/ replaced the 3 port valve so it doesn't appear to be that.

At work now but will try and get some photo's tonight. The hot water works by using the immersion heater but not sure how to work it without the Nest. If the CH is off it doesn't work just on HW via the Nest. Logic says it's a wiring issue but I can't fathom out how it worked OK for a few weeks...

Recently had a nest thermostat 3rd Gen fitted when I had a Worcester Bosch boiler installed (Regular system with tank in loft and immersion heating in cupboard) Everything worked fine for a few weeks but then a couple of weeks ago noticed the boiler had gone off and wasn't resetting. After a...