Hello,
My Grannies boiler is having a slight problem at the moment, when the heating is on the pressure goes all the way to just before 3 bar, the pressure relief valve is not lifted.
I went to check up and checked the filled loop is closed, then I bled water out of a radiator until the pressure was back to 1.5 bar.
I can't really give you a proper problem description because I only went to release the pressure in the fear of the PRV being lifted.
The heating and hot water works perfectly.
What is causing this severe pressure rise?
My Grannies boiler is having a slight problem at the moment, when the heating is on the pressure goes all the way to just before 3 bar, the pressure relief valve is not lifted.
I went to check up and checked the filled loop is closed, then I bled water out of a radiator until the pressure was back to 1.5 bar.
I can't really give you a proper problem description because I only went to release the pressure in the fear of the PRV being lifted.
The heating and hot water works perfectly.
What is causing this severe pressure rise?