I've recently fitted a Under Floor Heating system; a two room, four port manifold system.
I filled the system from the hose connection as directed (flowing water through the circuits until there are no air bubbles etc), checked pressure and so. I followed the instructional video which the supplier pointed me to with my order: video
I then connected the system to my central heating loop, and the pump is running (when required) and the actuators are firing, however there is no water flow according to the gauges at the top of the flow manifold.
So it looks like I'm not getting anyway water flow through the manifold. Is there anything obvious which could be the cause of this?
I have isolated the loops and turned on the drains out of the manifold and managed to get water to flow through the manifold from the flow line and out of the drain on the side of the manifold. So water is free to flow down the pipe, it just isn't for some reason.