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How do I Know if My Radiator has an Air Lock?

Your radiator likely has an air lock if the top (or all of the device) is cold. An air lock indicates air could be trapped inside your radiator’s pipes, preventing heat distribution.

Cold Radiators

There’s nothing better than knowing your house will keep you warm once the outdoor temperatures can’t. However, if you notice a few of your radiators are cold at the top, struggling to keep warm, they may have air trapped in their pipes and that requires an immediate fix.

If only one or two of your home’s radiators are cold, you’ll want to locate the cold radiator and feel both sides and the middle of it. You’ll notice one side will be warm and the other cold as water comes in through the warm side and air gets trapped in the cold side.

However, if all of your radiators are cold, the problem could be substantial. In this case, you’ll want to contact an HVAC professional to help bring back warmth to your house.

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