For the last couple of weeks I have been bleeding radiators, but seem to be unable to get rid of a small amount of air that must still be left in the central heating system. I think there is still some air as I hear it gurgling when the boiler comes on.
While I get a little bit of air every day out of a towel radiator in the bathroom (on the first floor), I think I fail to get all the air out since the boiler is actually the highest point of the system (in the airing cupboard on the first floor).
How do I get the air out when it seems to stand in the boiler when swiched off?
Am I missing a trick here? When I bleed the radiators, I always switch off the boiler - should I not? Or could I do some trick with the filling loop? I am out of ideas, so I'd be happy to hear yours.
Just so that you know the air is in the system since a new radiator was fitted. I don't think there is a leak, as the pressure of the system is constant (when not bleeding).
While I get a little bit of air every day out of a towel radiator in the bathroom (on the first floor), I think I fail to get all the air out since the boiler is actually the highest point of the system (in the airing cupboard on the first floor).
How do I get the air out when it seems to stand in the boiler when swiched off?
Am I missing a trick here? When I bleed the radiators, I always switch off the boiler - should I not? Or could I do some trick with the filling loop? I am out of ideas, so I'd be happy to hear yours.
Just so that you know the air is in the system since a new radiator was fitted. I don't think there is a leak, as the pressure of the system is constant (when not bleeding).