Why Is My Radiator Hot At The Top But Cold At The Bottom?
Are the radiators in your home hot at the top and cold at the bottom? There are a few reasons that might be causing them to have cold spots. Here we talk about some of the most common problems what might be causing the hot and cold patches and how you can fix them by yourself if possible or by a Gas Safe registered engineer.
Why is your radiator hot and cold?
There may be air trapped. Or a build up of rust, sludge or limescale which might be obstructing the flow of the hot water. This will be preventing the bottom section of your radiator from getting warm. To solve this issue, we recommend bleeding your radiator. If this doesn’t work you will need to flush the heating system to flush out the build-up .
Can my radiator be hot at the bottom instead?
Radiators can be like this when there is air trapped in the radiators. To solve this issue, you will have to release the air trapped in your radiators. This can be done by simply bleeding the radiators. You don’t need a Gas Safe registered engineer to bleed your radiators, you can do it yourself. You will need a flat blade screwdriver or a radiator key. If you don’t have a radiator key, don’t panic you can find one at most DIY stores. Google will also give you a step by step guide on bleeding your radiator.
If you have cold patches in the middle of your radiator this could also be due to rust build up and trapped sludge. To solve this you would need to remove the radiator and flush it out to clean it. In some cases the radiator could need replacing which would need to be done by a Gas Safe registered engineer.
If you have one of our service plans you could be covered for the new radiator.
Why is my radiator cold at the bottom?
Again this can be caused by build up of rust, sludge or limescale. This restricts the flow of water in the radiators. This causes the cold patch at the bottom to resume the flow of water. Flushing your radiator will get rid of central heating sludge and other debris. You can flush the system yourself using a sludge remover which you can buy from most DIY stores. Remember if your radiator is the opposite way round, cold at the top but hot at the bottom it is often the case that you have trapped air in the system, this can be solved by bleeding your radiator. If you google bleeding a radiator you should be able to resolve the problem.
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