Hi, my boiler (Ideal Classic SE15FF) is not coming on. I have noticed that the pressure guage is saying I have only under 0.5 bar pressure.
I have open the valve in the hot press to add more water to the system but the pressure is not rising. This valve is on a pipe coming from the main tank in the attic. Should there be a mains feed somewhere? or should my tank feed re-pressurise the system?