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Airlocked Radiator

The warning sign for an airlocked radiator is, either a cold lower part or cold upper part of the radiator. This might be a symptom of another problem, so have a check of all the radiators and make sure that there are no leaks etc. Hackney Plumbers are trained for all plumbing jobs. Once you are sure that air is your problem, you will need to bleed the air from the radiator, bleeding is an action that should be done around once a year to keep your central heating in good working order. For this example we will assume that all the radiators are affected. To begin this process, you should firstly open the thermostatic radiator valves (TRV), including the valves on your heated towel rails if fitted. Now, run your central heating for approximately 15mins, then, switch it off. With a bleed key unscrew the bleed valve slowly anti-clockwise, on the first radiator. The valve is in one of the top corners of the radiator. Use an old cloth to catch any drips. The air that is trapped in the radiator will escape through the valve and there will be a hissing sound as the air leaves. This should be followed by a trickle of water. Always make sure that the bleed valve is only opened a little, so any water that escapes is minimal. Once you see water you can close the valve again and wipe. There are some heating systems that are fitted with an automatic air release valve. This normally is fitted with a small red top. If you are not confident enough to do this, then you should call a professional plumber like a Hackney Plumber who is a qualified tradesperson. You should now carry this action out on all the radiators in the system. Once the last radiator is cleared, turn the heating back on and check that all the radiators are working correctly an are hot from top to bottom. Make sure that the TRVs are set to your preference.


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