![]() Step 4: If the fuse is blown, the multimeter will show an open circuit or a very high resistance. Step 3: If the fuse is good, the multimeter will show a continuous beep or a reading of zero. Step 2: Connect the leads of the multimeter to the two ends of the fuse. Step 1: Set the multimeter to the ohmmeter setting. ![]() Now here are the steps to follow when using a multimeter to test the fuse: I hope that you understand the basics of a multimeter, whether it is digital or analog. One of the methods is by using a multimeter. There are various ways of testing a fuse. Once a fuse blows, it cannot be reused and must be replaced with a new one. The element inside the fuse melts, which breaks the circuit and prevents further damage. When a fuse blows, it means that the current flowing through it has exceeded the safe limit. Once the metal melts, it breaks the circuit and prevents further damage. The metal is usually made of lead or tin, which has a low melting point. This is done by using a piece of metal that melts when too much current flows through it. How Do Fuses Work?Īll fuses work by interrupting the flow of electricity when it exceeds a certain level. They are often used in larger electrical systems, such as those found in homes and businesses. They get their name from the fact that they have a flat, rectangular shape with two exposed metal blades on each end.Ĭartridge fuses, on the other hand, have a cylindrical shape and come in different sizes. ![]() Blade fuses are the most common type and can be found in most cars. There are two main types of fuses: blade fuses and cartridge fuses. How do you tell if a fuse is blown without a multimeter?īefore we get into the testing aspect of the fuse, it is important to know that not all fuses are the same.
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