#Plumber #Plumbing How to repair a radiator that is not working. Bleed air from a radiator using a bleed key. Using a screwdriver to bleed a radiator. Plumber in Leeds showing how to make the heating work again. Removing air from a rad. Bleeding a radiator. Cold radiator. If you have a cold radiator this video will definitely help you. Plumbing video showing the correct way to remove air from a radiator.