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The two most common problems with water heaters is rust and calcification, or "scale". If you have hard water, or water with a high mineral content, the minerals (usually calcium) will cake and coat the base and the pipes, restricting water flow. In some cases, a thick layer of mineral crud will settle to the bottom of the water heater, insulating the water from the burners! This can cause the water to not get hot, or as hot as expected.

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14y ago
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14y ago

Yes. Most electric water heaters have two elements, one upper and one lower. The lower element is usually the first to burn out. They are relatively easy to replace.

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15y ago

To much use

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Q: What causes water heaters to go bad?
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