Hi, I'm refilling my vented system (5 hours in!) after changing a motorised valve body.
System info: feeder tank (and cold tank) in loft, Ht Cylinder, pump and valves etc plus some rads 1st floor, and on ground floor - just rads and boiler in kitchen.
Have been filling system under gravity (Elec supply off). Valves are both set to manual (both 2port).
Downstairs rads filled ok and have now shut bleed valves. bled downstairs rads first, then moved onto 1st floor rads, where things have now stopped! no hissing of air anymore, no water. Have bled pump, no obvious air or water. Bled additional vent in boiler cupboard (highest bleed valve in house). Now all upstairs bleeds open, but little happening.
So seems downstairs filled, upstairs not and everything stalled. Don't want to switch on power to pump, as pretty sure nothing there?
Any advice much appreciated!
System info: feeder tank (and cold tank) in loft, Ht Cylinder, pump and valves etc plus some rads 1st floor, and on ground floor - just rads and boiler in kitchen.
Have been filling system under gravity (Elec supply off). Valves are both set to manual (both 2port).
Downstairs rads filled ok and have now shut bleed valves. bled downstairs rads first, then moved onto 1st floor rads, where things have now stopped! no hissing of air anymore, no water. Have bled pump, no obvious air or water. Bled additional vent in boiler cupboard (highest bleed valve in house). Now all upstairs bleeds open, but little happening.
So seems downstairs filled, upstairs not and everything stalled. Don't want to switch on power to pump, as pretty sure nothing there?
Any advice much appreciated!