Radiator is cold Home › Forums › Public Forums › General Plumbing › Radiator is cold This topic has 1 reply, 2 voices, and was last updated 21 years, 2 months ago by Harold Kestenholz. Viewing 1 reply thread Author Posts 13 Feb 2003 at 12:29 am #276349 MasterPlumbersKeymaster Anyone have any suggestion on what to do when some of the radiators or cold and others are Hot. the valves are open do I need to bleed the line? [email protected] 13 Feb 2003 at 10:01 pm #293977 Harold KestenholzParticipant Probably. Follow the Air Purging procedure at http://www.hydronicnetwork.net Author Posts Viewing 1 reply thread You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In