Turn the dial on the multimeter so it points to the continuity. Fuses in homes typically are 15.
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How to test a fuse box. A fuse box also known as a fuse panel organizes all of the cars fuses in one area for easy access. Turn the meter on and set it to measure continuity. There will also be a power fuse block located under the hood near the vehicles firewall. The blocks may also contain re settable circuit breakers. But before that to properly understand what it is were doing were going to be looking into the different types of fuses the different terms that one should keep in mind when talking about electrical devices and then finally well be looking into how exactly one should test a fuse using a multimeter. Keep three replacement fuses on hand for each size fuse used in your fuse box.
How to test a car fuse box for a current step 1. In either way you need to locate. 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. Buy the items featured in this video at 800 337 1720 or visit. In this article were going to be looking at how to use a multimeter to test a fuse to check if it should be replaced. Locate the fuse block on your vehicle with the help of a work light or flashlight the main fuse block is usually located underneath the dash on the drivers side of a vehicle.
Never replace a fuse with one of higher amperage or use a copper penny in place of a fuse to restore power. When working with anything electrical shut the power off to the device that youll be working on and check with a tester to make sure it. Open the panel on the front of the fuse box by prying back its latch with your hand. Electrical test of a fuse. Once you have located the poles take the probes and place them on the negative and positive sides of the. Besides the visual test the other way to check if a fuse is blown or not is by conducting an electrical test to check for continuity from one end of the fuse to the other.
Secure the 12 volt test lights alligator clip to any bare metal. It is located under the hood in the engine bay typically somewhere easy to get to that is less likely to be damaged in a collision. This panel is commonly used for interior electronics. Put one lead on each end of the. Testing the fuse using a multimeter locate the terminals. A good fuse does not contain a broken connector and connects from one end of the fuse to the other.
Testing the fuse 1. How to check a fuse at the home fuse box things you will need. The blocks contain two types of fuses the older glass cartridge style fuses and the newer blade style fuses. How to check a fuse by testing it with a multimeter presented by katie nyberg for galco tv. The picture shown below are of 2 good fuses. Your cars fuse box holds a variety of fuses with different ratings and most likely several relays.
Make sure the device equipment or vehicle is turned off before the fuse. When the circuit in your home quits working and you suspect that it is likely a blown fuse you can test that theory by using a multi meter for testing fuses. However it is common for there to be an additional interior fuse panel inside the cab of the vehicle. This will measure the resistance of the fuse link if intact. Turn the equipment off and remove the fuse. All fuses have two terminals positive and negative one.
Turn the vehicles ignition to the power on position without starting the engine.
Gallery of How To Test A Fuse Box
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