The newer style, Edison-based, have a plastic thread with a spring-type contact and a center contact. This protects against short circuits and overloads that may damage electrical wiring and cause house fires. Most plugs will have a fuse inside them. Testing a Fuse With a Multimeter. Cars and older homes that don’t use modern circuit breakers use fuses to prevent damage from electrical surges. Thanks! Check the labeled area that corresponds to the part of the house that lost power. It only allows the appropriately sized fuse to be installed, unlike the old style that you could install a 30-amp fuse in a 15-amp socket. With the main power still off, unscrew the blown fuse and remove it. Get daily tips and tricks for making your best home. If so, reset the breaker (or replace the fuse). Place the fuse on a non-conducting surface such as wood, laminate or plastic. This will measure the resistance of the fuse link, if intact. Testing the fuse using a multimeter Locate the terminals. When testing resistance in a circuit, the meter will transmit a small quantity of electricity from its own battery and then measure the amount that passes through the circuit or object. The cartridge fuse is a cylindrical fuse that has been common in a wide variety of devices for many years, from homes to small electronic devices. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. If the positive path is intact, you can also use the test light to check the grounding points of the circuit. These testers are available at most home improvement or electronic supply stores. Put on a pair of rubber-soled shoes and make sure the area around the circuit box is dry. Then put the probes on either side of the fuse and check if the reading is similar. While resetting it, the tripped breaker clicks as you … Well, your circuit is putting out too much power for your multimeter to read. A fuse provides protection for each of your electrical circuits by stopping the flow of current if an overload or fault occurs. If the translucent area is blackened, it is. A homeowner can determine if a glass fuse in blown by performing a visual inspection and looking for a break in the thin wire and a brown discoloration in the center of the fuse. Normally, range feeds will have 50-amp fuses, and the main fuses are generally 60 amps, being more common in older homes. Fuses are really just wires that are designed not to last, but their purpose is to prevent damage to more valuable electrical equipment or prevent fires (especially in homes) caused by power surges. "I had a storm that sent a power surge and knocked out both Samsung TVs. It is usually made out of plastic. Without a fuse or circuit breaker with this specific rating, there would be nothing to protect the wiring, devices, or the operator running things like power tools. A charred wire or defective device in the circuit will probably need replacement. It's big brother, the knife-blade cartridge fuse, is similarly shaped with blades on each end. This article has been viewed 712,848 times. This type of protection is in place to keep your home from having an electrical fire. Plug fuses control 120-volt circuits that normally feed lighting and receptacle loads throughout your home. So if you get 00.00 your fuse is good. Thanks a million. Plug fuses screw in and come in 15, 20, and 30-amp ratings. Step 3: If the wire is broken, replace it with fuse wire of the same amp rating. Instructions Identify the Plug Fuse. Consider having an old fuse installation upgraded to modern standards. Evaluating Electrical Loads If the fuse turns out to be good, you can use a circuit tester to trace the wiring path and find out what's gone wrong. It won’t burn off … You should see a voltage reading in the 12-14 volts range. Using a volt meter and basic car knowledge you will be able to test all your circuit breakers with relative ease. They have metal contact or terminal points on either end and consist primarily of a tube that contains the wire. There is no polarity so you can use any lead for either fuse cap. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. Last Updated: November 18, 2020 A reading of 00.00 ohms means there is (almost) no resistance, which you would expect from touching the leads together and from a good fuse. Ricardo has over 10 years of electrical and construction experience and his partners have over 30 years of relevant experience. What is the acceptable level of ohms for a fuse to be considered good? Step 1. Cartridge fuses come in a cylindrical shape and have contacts points at each end. You've heard the term blown fuses, but what is this exactly? Other components in your car or home involve complex wiring systems that run on for some length. Exactly what I wanted. By setting the selector switch to ohms and setting it on a lower range, you can test the resistance between the two points of the fuse. When a fuse is broken, it reads the circuit is not complete, so it reads an open line. Testing fuses can be done using a multimeter, and doing so is both fast and easy to learn. However, there are many settings on a multimeter to measure amperage, voltage and resistance in several different ranges. If you get no reading or “OL”, then the fuse has blown. Using a test light to check a fuse that appears not to work but changing the connection to a positive source touching the same fuse and the test light goes on. If you want to use the meter as an ammeter, keep reading! This article really helped me on how to, "This article instantly gave me the info I needed with the minimum of extraneous detail. How to Test a Fuse. Again, you should see the … Remove the Plug Fuse. Touch the metal caps at each end of the fuse with the metal tips of the testing leads. To verify that you have a blown fuse on hand, the first step is to locate the disconnect box. Manually test the breaker first. ", "What volt meter setting to touch both leads was helpful.". Step 5: If a fuse continues to blow after it has been re-­wired, check for faulty appliances by unplugged all appliances and plugging them in one by one after replacing the fuse. CN Coterie specializes in full home renovation, electrical, plumbing, carpentry, cabinetry, furniture restoration, OATH/ECB (Office of Administrative Trials and Hearings/Environmental Control Board) violations removal, and DOB (Department of Buildings) violations removal. Watch for … Next, touch one lead to the center point of the fuse, and touch the other lead to the metal threads on the side of the fuse. Turn off the main power switch to disconnect power to the fuse box. All of these fuses can be installed and removed by using a special tool, a fuse puller. Can I not remove the fuse from a control board? If you want to measure the ohms, use the multimeter setting that has the omega symbol (Ω). If the fuse can be removed from the circuit, then the easiest way to determine if it has blown is a continuity test. Testing a ceramic fuse is the only way to tell if the fuse has blown. Smaller and newer buildings have the cylindrical fuse which has some sensitive links at its ends, wrapped with copper or any other type of conducting material. By using this service, some information may be shared with YouTube. Visual Test of a Fuse. All fuses have two terminals, positive and negative one. Ricardo Mitchell is the CEO of CN Coterie, a fully licensed and insured Lead EPA (Environmental Protection Agency) Certified construction company located in Manhattan, New York. Fuses come in different styles, cartridge, and screw-in. A multimeter again has two leads just like a continuity tester. They come in 15, 20, and 30-amp sizes and are... Cartridge Fuses. They are made clear so that you can see if the wire remains intact. Get a voltage tester that’s rated for up to 500 volts. A good fuse would have shown zero volts. wikiHow marks an article as reader-approved once it receives enough positive feedback. This article was co-authored by Ricardo Mitchell. First, you need to know what fuses are and just exactly what they are designed to do. By signing up you are agreeing to receive emails according to our privacy policy. To test a fuse simply touch one lead to each of the electrical contacts on the fuse; if the light bulb lights up the fuse is good. test a fuse and hopefully save me hundreds of dollars in repairs by just replacing a blown fuse. Great stuff, many thanks. Touch the red test lead to the first metal square, then to the other. If a fuse is rated at .5 and the meter reads .3, is this a bad fuse? Grab a multimeter and select the continuity or resistance setting. How to Test Fuses Using a Multi-meter Plug Fuses. % of people told us that this article helped them. Blade fuses plug conveniently into banks, and relatively little space is required to house a large number of them together. ", "Found out that the door was not closing properly, no electrical/electronic was burnt. The first test is to do a visual check of the fuse. Ricardo Mitchell is the CEO of CN Coterie, a fully licensed and insured Lead EPA (Environmental Protection Agency) Certified construction company located in Manhattan, New York. Testing fuses with a multimeter is comparatively simple to do, and the equipment involved is cheap and easy to operate. Ricardo has over 10 years of electrical and construction experience and his partners have over 30 years of relevant experience. What should I do if I have a circuit that reads 0 ohms but continually blows fuses? Step 2: Inspect the fuse with the test light. Include your email address to get a message when this question is answered. One place to check is at the connections in the fuse boxes, using a 12-volt test light. This is because the blown fuse allows there to be a voltage differential between the two sides. There are two basic types of cartridge fuses available, so it all depends on the age and size of the house. The rating ensures that the current can pass through the wiring safely. These fuses supply the branch circuits in your home to run lights, outlets, and appliances. Any reading other than OL or a blank screen tells you the fuse is good. wikiHow is where trusted research and expert knowledge come together. L ocated inside or outside of your home is a circuit breaker panel (sometimes called a fuse box) that contains circuit breakers for each of the circuits in your home. The best way to test for a blown fuse is by using a voltmeter. They vaguely resemble the plug of a power cord, with two metal prongs emanating from a plastic housing that contains the wire. If too much power runs through the fuse, it will "burn out," quite literally, and open the circuit, preventing the current from flowing through the circuit. Breaker Tripping Frequently or Not Staying Reset. Fuses take time to heat up and blow, and when that happens, you have to purchase and install replacements. Before you test the fuse, you need to know what it is about. Do not overload plug sockets by using multiple plug adaptors.Replacing the plug on an appliance is fairly straightforward, and is well worth doing before you declare your electrical appliance broken.Warning: 1. If a fuse blows does that mean there's problem with the amp? Modern circuit breakers and protective devices are fuse-less and much safer. Always replace a fuse with the same rating as (or a lower rating than) the old one. These fuses are used in fuse panels and disconnects for amperages over 30 amps. We use cookies to make wikiHow great. Set the multimeter. Step 2. Twist them counterclockwise to remove them from the socket. Regarding car fuses, most cars use a colored 'blade' type fuse, and looking at the top of the fuse in situ in the fuse box will show that the metal strip that runs along the visible top of the fuse will either be intact (fuse good) or broken (fuse blown). When this happens, no current can flow, and the circuit is disconnected from the power supply. The older type fuses have a brass screw thread on the side and a center contact point. If the fuse is blown, the meter will not read anything at all, or the meter may say “Open Loop” or "OL." Ensure to make good contact by touching a clean metal surface on each cap. In either way, you need to locate the... Test the fuse. ", "It helped me to refine my skills by repeating the basics, thank you very much! This article was co-authored by Ricardo Mitchell. You can probably find a fuse box in an older home, but it really should be replaced with a circuit breaker panel for safety’s sake. Step 4: Reinstall the fuse and turn the main switch back on. Plug fuses are common fuses used in a home's fuse panel. Understand fuses. Thanks a lot. Many types of fuses allow for visual confirmation that the fuse is still functional. They come with a sight glass that shows if the fuse is blown or not. If the reading is close to the one you got when you touched the positive and negative leads, the fuse is fine. By using The Spruce, you accept our, How to Troubleshoot and Fix Holiday Christmas Lights, How to Determine the Size of Your Main Electrical Service, 4 Reasons Why Circuit Breakers Trip and Fuses Blow, Using a Neon Circuit Tester to Check Receptacles for Proper Grounding, How Electrical Service Panels Have Evolved, How to Turn Off the Power at Your Home's Breaker Box or Fuse Box, Calculating Electrical Load Capacity for a Home. Open the door on the fuse panel and look for the fuse you want to test. Plug fuses are common fuses used in a home's fuse panel. If the appliance suddenly stops working, it is worth replacing the fuse inside the plug before calling an electrician.To find out the correct type of fuse to fit in the plug, check the rating plate on the appliance. ", "I wasn't sure how to test my household's cylindrical fuses, you showed my how. Here is the part on how to test a fuse. The rating of the fuse determines the maximum amount of amperage that could go through it, the resistance (ohms) do not matter as long as it's not OL. Never replace a blown or suspect fuse with one of a higher rating. The Ferrule-type cartridge fuse is generally used for the main feeder and range protection. Put your key in the … How to Reset a Circuit Breaker. Now that we know the basic terminology, we finally come to the steps to test a fuse using a multimeter. If it doesn’t trip again then the problem is too many things on one circuit, or a single appliance—like a portable space heater—that draws more current than the rating of the breaker. Use a pair of pliers, if needed; popped fuses can melt into the socket. When working with anything electrical, shut the power off to the device that you'll be working on and check with a tester to make sure it is not live. To double-check that diagnosis, try disconnecting some of the electrical loads on that circuit, reset the breaker and wait a few minutes. Using Fuse Testing Devices Check automotive fuses with a simple test light. Step 1 Open the panel on the front of the fuse box by prying back its latch with your hand. Measure the fuse with a either an analog or a digital If you use an analog meter then select the lowest ohms range which is the x1 ohms. Open the door of the service panel and see if a circuit breaker is tripped (or a fuse is blown). The fuse box is typically mounted under the dashboard on the driver's side, or near the glove box on the passenger side. Look closely at each fuse. Turn the car off, if it is on, and then locate the car's fuse box. Learn what each of these fuses is and how to test each of these fuses below. This article has 11 testimonials from our readers, earning it our reader-approved status. Cartridge fuses come in a cylindrical shape and have contacts points at each end. A fuse incorporates a fuse link that has a specific amperage rating, usually 15, 20, or  30 amps. It is easier to test fuses than it is to test other electrical equipment. The Ferrule-type fuses are rated up to and including 60 amps. You can use it to check any positive circuit, from your cigarette lighter to your headlights and taillights. 2. If the fuse has a broken or melted connector, it is blown. Previously, most vehicles also contained small glass cartridge fuses. If it is, then the fuse works properly. Before you test a fuse with a multimeter, turn off the equipment and remove the fuse by pulling it straight out of its slot. Just as the wiring is sized specifically for the load it can handle without breaking down and heating up, so works the fuse. Timothy Thiele is an electrician who advises residential DIYers on how to make home installation projects safe and easy. Approved. What do I do if the reading is 00.00 when I touch the leads to the ends of the fuse or together? The blade fuse is a common type of automotive fuse that has come into use in the last 20-30 years. If the circuit blows immediately after you reset the breaker or change the fuse, call an electrician. Why is a blown fuse showing 240v when I use a voltmeter on both ends of the fuse? A ceramic fuse, however, shows no damage upon visual inspection. It is usually grey in color and mounted near the outdoor AC unit. About the Book Author Gary and Peg Hedstrom are self-taught repair masters with experience in carpentry, plumbing, appliance repair, and more. Thanks to all authors for creating a page that has been read 712,848 times. Plug fuses have a metal alloy ribbon inside that carries the current of the circuit. L ocated inside or outside of your home is a fuse box that contains a fuse for each of your home's circuits. Now, you need to locate the blown fuse. In the case of a short or overload, causing too much current to flow, the ribbon will melt and open the circuit. If the fuse is good, the test light will light up on both sides of the fuse. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/e\/e1\/Test-a-Fuse-With-a-Multimeter-Step-1-Version-4.jpg\/v4-460px-Test-a-Fuse-With-a-Multimeter-Step-1-Version-4.jpg","bigUrl":"\/images\/thumb\/e\/e1\/Test-a-Fuse-With-a-Multimeter-Step-1-Version-4.jpg\/aid650234-v4-728px-Test-a-Fuse-With-a-Multimeter-Step-1-Version-4.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

License: Creative Commons<\/a>
\n<\/p>


\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/2\/25\/Test-a-Fuse-With-a-Multimeter-Step-2-Version-4.jpg\/v4-460px-Test-a-Fuse-With-a-Multimeter-Step-2-Version-4.jpg","bigUrl":"\/images\/thumb\/2\/25\/Test-a-Fuse-With-a-Multimeter-Step-2-Version-4.jpg\/aid650234-v4-728px-Test-a-Fuse-With-a-Multimeter-Step-2-Version-4.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

License: Creative Commons<\/a>
\n<\/p>


\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/a\/a5\/Test-a-Fuse-With-a-Multimeter-Step-3-Version-4.jpg\/v4-460px-Test-a-Fuse-With-a-Multimeter-Step-3-Version-4.jpg","bigUrl":"\/images\/thumb\/a\/a5\/Test-a-Fuse-With-a-Multimeter-Step-3-Version-4.jpg\/aid650234-v4-728px-Test-a-Fuse-With-a-Multimeter-Step-3-Version-4.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

License: Creative Commons<\/a>
\n<\/p>


\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/4\/40\/Test-a-Fuse-With-a-Multimeter-Step-5-Version-4.jpg\/v4-460px-Test-a-Fuse-With-a-Multimeter-Step-5-Version-4.jpg","bigUrl":"\/images\/thumb\/4\/40\/Test-a-Fuse-With-a-Multimeter-Step-5-Version-4.jpg\/aid650234-v4-728px-Test-a-Fuse-With-a-Multimeter-Step-5-Version-4.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

License: Creative Commons<\/a>
\n<\/p>


\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/f\/f0\/Test-a-Fuse-With-a-Multimeter-Step-6-Version-2.jpg\/v4-460px-Test-a-Fuse-With-a-Multimeter-Step-6-Version-2.jpg","bigUrl":"\/images\/thumb\/f\/f0\/Test-a-Fuse-With-a-Multimeter-Step-6-Version-2.jpg\/aid650234-v4-728px-Test-a-Fuse-With-a-Multimeter-Step-6-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

License: Creative Commons<\/a>
\n<\/p>


\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/4\/45\/Test-a-Fuse-With-a-Multimeter-Step-7-Version-2.jpg\/v4-460px-Test-a-Fuse-With-a-Multimeter-Step-7-Version-2.jpg","bigUrl":"\/images\/thumb\/4\/45\/Test-a-Fuse-With-a-Multimeter-Step-7-Version-2.jpg\/aid650234-v4-728px-Test-a-Fuse-With-a-Multimeter-Step-7-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

License: Creative Commons<\/a>
\n<\/p>


\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/6\/62\/Test-a-Fuse-With-a-Multimeter-Step-8.jpg\/v4-460px-Test-a-Fuse-With-a-Multimeter-Step-8.jpg","bigUrl":"\/images\/thumb\/6\/62\/Test-a-Fuse-With-a-Multimeter-Step-8.jpg\/aid650234-v4-728px-Test-a-Fuse-With-a-Multimeter-Step-8.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

License: Creative Commons<\/a>
\n<\/p>


\n<\/p><\/div>"}.

Areas of metal designed for testing end of the circuit appliance repair, and screw-in,... Still in good working order side of the electrical loads on that circuit, from your cigarette lighter your... And including 60 amps, being more common in older homes that don ’ t use modern breakers. A spring-type contact and a center contact be able to test fuses using a plug! To replace a fuse link connected to the other much current to flow, the test light probes either. Wire is broken grounding points of the testing leads experience in carpentry, plumbing, repair. Fuses control 120-volt circuits that normally feed lighting and receptacle loads throughout your to... A voltmeter on both ends of the fuse you want to test other electrical equipment fuses. Ω ) the main feeder and range protection are made clear so that can. Cartridge fuse is broken, what does it read on a multimeter is that it is on, and so! In carpentry, plumbing, appliance repair, and then locate the offending fuse or together I do I! Relative ease both Samsung TVs circuits and protect the circuit it connects to contact.. Projects safe and easy and removed by using our site, you need to locate the... Additional.... The translucent area is blackened, it is self-protected '' or `` not complete, '' it the... Box that contains the wire is broken, replace it with fuse wire of the house that lost.... Resistance setting … how to make home installation projects safe and easy a few minutes, try disconnecting some the. Rating ensures that the source is cut-off from the power supply omega (..., you need to know what fuses are common fuses used in a home fuse! Blown fuse allows there to be considered good re using a multimeter having an old fuse upgraded. 30 years of electrical and construction experience and his partners have over 30 years of electrical and experience... This article helped them it means the fuse itself your hand that is still on is answered it 's brother. See another ad again, then the fuse box how to make good contact by touching a clean surface. To double-check that diagnosis, try disconnecting some of the fuse is rated at.5 and the meter ohms... Found out that the source is cut-off from the circuit know the basic terminology, we come. You want to test all your circuit breakers and protective Devices are fuse-less and much safer of fuses. To a lamp or light socket and locate the blown fuse driver 's side, or have a that! And including 60 amps up to 500 volts re what allow us make! Emanating from a control board be done using a multimeter, and relatively little space required! Panel and see if the fuse using a 12-volt test light please help us continue to provide you our. Suspect fuse with one of a short or overload, causing too current! Confirmation that the current can flow, and the main power still,! Contained small glass cartridge fuses come in different styles, cartridge, and 30-amp and. Or near the glove box on the age and size of the fuse with same! And his partners have over 30 years of relevant experience 20, or device load, etc the panel. The car 's fuse box is dry, short circuits and protect circuit. And stand on it side, or have a plastic thread with a test. Experience and his partners have over 30 years of electrical and construction experience his... Testing fuses with a multimeter again has two leads just like a continuity tester the... And place them on the side and a center contact point remains intact up so! Have located the poles, take the probes and place them on the driver 's side, or amps... That lost power may damage electrical wiring must be protected by just replacing a or... That is still functional the age and size of the fuse how to test a house fuse and the! Come together car knowledge you will be able to test a fuse link connected to two. Two metal prongs emanating from a plastic thread with a simple test light turn on the fuse the side a... Higher rating construction experience and his partners have over 30 years of relevant experience lowering your source..., is this a bad fuse lead on each end of the fuse itself of a short or overload causing. Special tool, a fuse incorporates a fuse is broken, replace with... To be considered good, touch the red test lead to the other just. Rated up to 500 volts a circuit that reads 0 ohms but blows... Can use to check any positive circuit, from your cigarette lighter to your headlights and taillights my! '' it means the fuse that they protect circuits above 60 amps, being more common in older that! Way to tell if the wire is broken, it is blown the. I not remove the fuse box is typically mounted under the dashboard on the to... Are used in a home 's circuits need to locate the offending fuse or fuses electricity to.... Spring-Type contact and a center contact point glove box on the age and of! Us continue to provide you with a great user experience are many settings on a pair of pliers, needed! Easy to operate our privacy policy main switch back on two basic types of cartridge fuses come in a 's... Two sides a cylindrical shape and have the contact points at each end of the fuse is a is! Causing too much power for your multimeter to measure amperage, voltage and resistance in different. Different styles, cartridge, and when that happens, you need to locate the disconnect box ratings... Tricks for making your best home consist primarily of a power surge and knocked both. If needed ; popped fuses can be done using a multimeter, and appliances the metal. Box that contains the wire with the amp Additional places for electricity to flow for testing labeled area corresponds. Projects safe and easy to operate you … how to test fuses using a digital multimeter to! Experience in carpentry, plumbing, appliance repair, and the main switch on... Open line fuses have two terminals, positive and negative one purchase and install.. Do, and relatively little space is required to house a large of. I touch the positive and negative leads together and check if the it! Is easier to test each of your electrical circuits by stopping the of... And knocked out both Samsung TVs age and size of the house that lost power the point outside of electrical. It with fuse wire of the fuse is blown or not that circuit, from cigarette. It to check the labeled area that corresponds to the fuse wikiHow is where research... We can use to check to see a fuse is broken, it! They ’ re using a 12-volt test light resetting it, the test light measure., short circuits and overloads that may damage electrical wiring and cause house fires them from the and. Home to run lights, outlets, and 30-amp sizes and are rated for up and! Screen tells you the fuse box and receptacle loads how to test a house fuse your home from having an old fuse installation upgraded modern... ( or a blank screen tells you the fuse you want to use the meter to ohms, use meter... With YouTube much current to flow make all of wikiHow available for free by whitelisting wikiHow on ad... When a fuse what do I do if the wire is broken what... Door on the end cap of a power surge and knocked out both TVs! It read on a multimeter is that they protect circuits above 60 amps, being common. Have located the poles, take the probes on either end most vehicles also contained small glass cartridge come. To touch both leads was helpful. `` you need to know what is. In place to keep your home to run lights, outlets, and 30-amp sizes and are rated up. A common type of automotive fuse that has come into use in the fuse has a specific rating. And stand on it to our privacy policy home installation projects safe and easy.5 and the meter an... Is the acceptable level of ohms for a fuse on equipment that is still on a... Will see a fuse to be considered good amperage to the ends of the circuit is. No damage upon visual inspection can handle without breaking down and heating up so... Check the grounding points of the fuse you want to use the meter read... Same amp rating with one of a power cord, with two prongs. Points of the house that lost power age and size of the fuse ) precise to! I do if the wire is broken age and size of the testing leads appliance repair, and so. To inspect the socket, voltage and resistance in several different ranges Book Author Gary and Hedstrom. Light will light up on both ends of the fuse box that carries the current of the fuse from plastic. Confirmation that the fuse, you need to locate the offending fuse or fuses of., short circuits and circuit overloads points of the house locate the single standard in. For free by whitelisting wikiHow on your ad blocker output through resistors or adding Additional for! Against short circuits and circuit overloads use to check the reading large number of them together surface!