Hi.My Raven heat compi boiler has a really low water pressure its halfway between 0 and 1. I have heard it needs to be around 2.5How do I increase it? What would happen if I just left it.Also, I find its really really inconsistent with the heat. One minute its freezing the next I really think it hits boiling its so hot. Why is this?Thanks!
Underneath the boiler is a Filling Loop it is a flexible pipe which is connected to a 15mm (half inch pipe) and the other end is connected to a 22mm (three quarter inch ) pipe. On this loop is a tap or valve which you can open to allow more water into the boiler. Open it slowly until it is at 2.5 bar, then close it. Job done.The low pressure on your boiler was causing the erratic running.
