i have just moved a radiator in bathroom (downstairs) . i had to empty combi from just below it as it was only drainage i could find, now i have moved the rad i cant get combi to refill. water is back on but pressure gauge showing zero and when i open bleed valve on rads nothing happens. the combi is an ariston micro genus.

nigs, July 2008

that did the trick. thanks a lot pete.

nigs, July 2008

you should have a flexible pipe (grey) leading to the expansion tank in the boiler casing, there should be a thumb turn valve on one end of it. Open the valve and water should re-pressurise the system, let it fill till about 1 bar on the gauge. When youv'e bled rads re-top pressure up again. hope this helps

pete, July 2008