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Usually, the metal inside the plastic enclosure will have a U shape. If the fuse is blown, the curved part of the U will be missing, and the plastic will look a bit discolored/ or it will even be black depending on how hard of a load the fuse got before it burnt out.

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βˆ™ 2015-07-15 18:44:39
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Q: Can you tell me how to know if a fuse is blown in the fuse box and if so can this cause the heat not to work?
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