1. turn off the valves on the radiators you are NOT bleeding
2. switch on your central heating
3. insert the bleed key into the bleed valve of the rad to be bled
4.gently turn the key until you hear air escaping or water escaping
5. catch the water with a mug or small bowl.
6. when all you get is warm water and no air you have bled that radiator so turn the key the opposite direction to shut off nip it tight.
7. check that the the radiator is warm/hot all over
8. if not re bleed untill the rad is hot all over.
Remember if your boiler is a combi you will have to top up the boiler pressure back up to 1.2 bar if it is an open system i.e. fed by a header tank in the loft you donnot have to do anything else.
2007-01-15 01:29:07
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answer #1
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answered by Trootie 2
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Somewhere near the top of the radiator, usually at one end, you will see a round hole. Inside it will be a square screw head, sometimes its hexagonal. Go to a DIY or hardware shop, and buy a bleed key to suit it - should cost no more than £1.50 or so. Some are universal with 3 or 4 different sizes on one tool. Turn off the pump but make sure radiator valves are open. Using the key, turn the bleed screw anti-clockwise. Hold a rag or old towel over it to stop any spurting. You should hear a hissing sound. After a time the hissing should turn to bubbling and then you will get just water, although it may be black with sediment - hence old towel. Then close the bleed screw clockwise. That's it
2007-01-15 09:33:32
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answer #2
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answered by David W 4
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depends what type of rad you've got a standard bleed key is available from most hardware shops B and Q. etc there is normally a bleed point top right hand side of radiator simply insert key and let out very slowly any excess air until water starts to appear - re tighten and Voila - give yourself a pat on the back!
2007-01-15 09:36:10
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answer #3
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answered by Anonymous
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You need a radiator 'key' & use it to loosen the fitting at the end (top) of your radiator. You will hear a hissing noise as the air escapes @ then the water will begin to trickle thru.You then tighten the fitting again & hey presto it should get hot properly. Hope this helps
2007-01-15 09:24:47
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answer #4
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answered by la.bruja0805 4
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you need a radiator key, hexagonal shaped preferably metal or brass as the plastic ones perish.
Turn off your heating system and wait till pump stops working - need to listen for this.
Then turn anticlockwise until you hear a hiss and a dribble of water comes out - dont turn too quick or you will get drenched. Let water dribble for a couple of seconds then close the valve (clockwise) and dont overtighten it.
Job done.
2007-01-15 09:22:25
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answer #5
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answered by Pete W 2
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you need a radiator valve key (B&Q) etc
at the top of the rad at one end the key will fit
hold a towel under it
turn key
you will hear the air comming out , then water ,now do up
2007-01-15 09:21:54
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answer #6
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answered by Anonymous
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You bleed a radiator with the heating and pump switched off, otherwise it can suck air into the radiators !
http://www.ultimatehandyman.co.uk/bleeding_a_radiator.htm
2007-01-15 11:17:21
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answer #7
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answered by Anonymous
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get your raditor key put it in the top of your rad and turn but have a jug on standby for when the water comes out then do up again..xx
2007-01-15 09:24:12
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answer #8
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answered by greyhound mummy 4
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Start with the bleeder that is farthest away from the boiler and work your way forward
2007-01-15 09:22:25
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answer #9
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answered by aussie 6
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Have you got the tool that fits the part on the radiator? if hang on!!
2007-01-15 09:22:22
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answer #10
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answered by Anonymous
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