Recent content by Gewing1964

Sorry peeps, afraid I've no experience with boilers and heating systems.... do these pics help?

Hi all, I was hoping for some advice. I have a Honeywell ST6400c controller and recently, unless i have the heating set to come on, I am not getting any hot water. Is it just the controller that needs to be replaced or something else? My boiler is a Potterton Suprima Thanks for any advice G