i have a heat line vizo c-12 which was working fine, until about 3weeks ago when the living room radiator(furthest from the boiler) stopped heating up, i just left it as other priorities were elsewhere, then soon after the kitchen radiator heated up temporarily, i stupdly tried to fix it myself and removed the dustcap from the valve on the tank at the back of the boiler and let all the air out, pressure kept dropping over the following two days and everytime it dropped below 1 i used the filling loop to keep the pressure above 1, nothing realy changed, i called a plumber and told him what id done and he went to get a (air)pump....and didnt come back, so i got one myself and pumped 1bar of air into the tank, drained the system, and used the filling loop to repressurise back to 1.5 bar, now the temp indicator show that the temp is ok but none of the radiators have any heat in them, the hot water works fine,, ive tried bleeding the pump and the rads but no air comes out, please can somebody help????? thanks in advance.[/b]
