I have always topped up this boiler while the heating is on and going by the dial gage. I top it up to just a bit over half way of the gray area in the gage avoiding the red area.
What I'm concerned about is a plumber has told me he thinks the dial gage must be showing the wrong reading and is most likely faulty because the button you press to the left of the boiler where it says 1.3 bar or 1.8 bar etc sends the dial gage well into the red area when its on 2.0 bar. He said it should be on 2.0 bar but I seem to remember from somewhere that it shouldnt go up that high on the bar reading.
I'm a bit worried to see it in the red area though and just having to assume that the dial gage is faulty, what if its the bar gage thats faulty instead or nothing is faulty. It does eventually drop down into the gray area after topping up to 2.0 bar but I'm concerned that doing this will cause damage being topped up into the red area.
How do I know whats right and can these dial gages go faulty easily, is it common? I think he is a good engineer because he is employed for the schools, one of the teachers sent him to me.
Hes coming back to fit me a filter and possibly something else to do with the overfill pipe leaking outside but he wanted to leave it untill he was sure it really needed doing as it might just have been water left in the pipe after he unblocked it as apparently it has been sealed with cement since it was fitted. No wonder I have had problems with it ever since it was installed. When he unblocked it water gushed out but then slowed to a drop. A new prv or pvr valve was fitted last year by other plumbers and they didnt find the cement problem
What I'm concerned about is a plumber has told me he thinks the dial gage must be showing the wrong reading and is most likely faulty because the button you press to the left of the boiler where it says 1.3 bar or 1.8 bar etc sends the dial gage well into the red area when its on 2.0 bar. He said it should be on 2.0 bar but I seem to remember from somewhere that it shouldnt go up that high on the bar reading.
I'm a bit worried to see it in the red area though and just having to assume that the dial gage is faulty, what if its the bar gage thats faulty instead or nothing is faulty. It does eventually drop down into the gray area after topping up to 2.0 bar but I'm concerned that doing this will cause damage being topped up into the red area.
How do I know whats right and can these dial gages go faulty easily, is it common? I think he is a good engineer because he is employed for the schools, one of the teachers sent him to me.
Hes coming back to fit me a filter and possibly something else to do with the overfill pipe leaking outside but he wanted to leave it untill he was sure it really needed doing as it might just have been water left in the pipe after he unblocked it as apparently it has been sealed with cement since it was fitted. No wonder I have had problems with it ever since it was installed. When he unblocked it water gushed out but then slowed to a drop. A new prv or pvr valve was fitted last year by other plumbers and they didnt find the cement problem