Had a new boiler fitted in December. Still no clue how it works . Engineer has been out several times as Glow green sent him several times for different reasons. Wanted another £250. to replace pipe inside house but the engineer cleaned the old pipe and Said it was fine now. He has shown me several times how to program the boiler but it doesn’t go off unless I turn the boiler off at source which means I either have no hot water or heating or hot water and heating so it is costing a lot of money if I don’t turn it off at the source. I would like to get just hot water without the heating on ! I have turned the thermostat on some radiator s off as I get too hot but wish I could operate it manually as the program unit will not do what I want it to do. Wish I had had my other boiler repaired as it was just 10 years old and easy to use and the new one is a nightmare to try and set and still can’t work it after a couple of months. What will I do in summer when I don’t want the heating on ?