How to Test a 15 Amp Fuse with a Multimeter: Step-by-Step Guide

Learn how to test a 15 amp fuse with a multimeter using continuity or resistance mode to check if the fuse is good or blown.

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To test a 15 amp fuse with a multimeter, set the multimeter to the continuity or resistance mode. Place the probes on each end of the fuse. A good fuse will show a reading close to 0 ohms or continuity, indicating that current can pass through. If the reading is infinitely high, the fuse is blown and needs to be replaced.

FAQs & Answers

  1. What are the signs of a blown 15 amp fuse? A blown 15 amp fuse typically shows no continuity or infinite resistance on a multimeter, indicating the fuse is open and current cannot pass through.
  2. Can you test a fuse without a multimeter? Yes, a visual inspection can sometimes reveal a blown fuse if the metal strip inside is broken, but a multimeter provides a more accurate test.
  3. What multimeter setting is best for testing fuses? Continuity mode or resistance mode is best for testing fuses, as these modes show whether current can flow through the fuse.

Watch More

For more on electrical diagnostics, check out our videos on testing other types of fuses, understanding multimeter settings, and troubleshooting common electrical issues safely and effectively.

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