How To Bleed A Radiator HomeServe Video Guide

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-- http://ift.tt/1j3812k Cold radiators? Then you need to know how to bleed a radiator. It lets the air out, keeps the hot water in, and your home cosy. Step 1: Switch Off Boiler First, switch off the whole boiler, so there's no chance of you getting splashed. Step 2: Locate the Bleed Key Each radiator has a bleed valve at one of its top corners, identifiable by a square bit in the middle of the round plug. They're turned by specific keys which are easy enough to buy at any DIY shop if you can't find them. Step 3: Open Valve Use the key to turn the valve anticlockwise about a quarter of a turn. It shouldn't be necessary to turn it further - but have a small container and a couple of rags handy to catch spurting water in case you open the valve too far. Step 4: Close the Valve You will hear a hissing sound as the air escapes. Keep the key on the shank of the valve, then when the hissing stops and the first dribble of water appears, close the valve tightly. Step 5: Trouble Shooting If no water or air comes out when you bleed the radiator, then the valve is probably blocked with paint. Close the inlet and outlet valve at each end of the radiator, then remove the screw from the centre of the bleed valve. Clear the hole with a piece of wire, and reopen one of the radiator valves slightly to eject some water from the hole. Close the radiator valve again and refit the screw in the bleed valve. Open both radiator valves and test the bleed valve again.