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. How to check a fuse by testing it with a multimeter presented by katie nyberg for galco tv.
Turning Off Power At The Fuse Box Better Homes Amp Gardens
How to test a fuse box. How to check a fuse at the home fuse box things you will need. How to test a car fuse box for a current step 1. A fuse box also known as a fuse panel organizes all of the cars fuses in one area for easy access. The picture shown below are of 2 good fuses. 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. This will measure the resistance of the fuse link if intact.
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. The blocks contain two types of fuses the older glass cartridge style fuses and the newer blade style fuses. 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. Make sure the device equipment or vehicle is turned off before the fuse. 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. Turn the meter on and set it to measure continuity.
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. Put one lead on each end of the. Once you have located the poles take the probes and place them on the negative and positive sides of the. The blocks may also contain re settable circuit breakers. Testing the fuse 1. 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.
However it is common for there to be an additional interior fuse panel inside the cab of the vehicle. Open the panel on the front of the fuse box by prying back its latch with your hand. A good fuse does not contain a broken connector and connects from one end of the fuse to the other. Fuses in homes typically are 15. This panel is commonly used for interior electronics. Never replace a fuse with one of higher amperage or use a copper penny in place of a fuse to restore power.
Turn the equipment off and remove the fuse. Testing the fuse using a multimeter locate the terminals. Buy the items featured in this video at 800 337 1720 or visit. 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. Your cars fuse box holds a variety of fuses with different ratings and most likely several relays. Secure the 12 volt test lights alligator clip to any bare metal.
Turn the dial on the multimeter so it points to the continuity. Turn the vehicles ignition to the power on position without starting the engine. Keep three replacement fuses on hand for each size fuse used in your fuse box. All fuses have two terminals positive and negative one. In either way you need to locate. Electrical test of a fuse.
There will also be a power fuse block located under the hood near the vehicles firewall.
Gallery of How To Test A Fuse Box
