How To Know When A Ceramic Fuse Is Blown

Testing a ceramic fuse is the only way to tell if the fuse has blown.

How to know when a ceramic fuse is blown. If too much current flows through a circuit a fuse is designed. With all that a fuse does it s important to know if you are using the correct one for the appliance or fixture that has blown its fuse. If you don t hear any noise coming from the meter then the fuse is blown and should be replaced. Make sure not to induce too much pressure or you might harm the conducting surface of the fuse.

Thomas j peterson photographer s choice rf gettyimages. If you re using a digital multimeter set to measure resistance touch the probes together to get an initial reading. If the fuse seems stuck use pliers for this. Difference between ceramic glass fuses image credit.

This is necessary for ceramic fuses since they don t develop a blackened appearance like blown glass fuses. To do this use a voltmeter ohmmeter. A ceramic fuse however shows no damage upon visual inspection. If you have glass fuse you can easily see if fuse is burned or not for ceramic types you will need continuity checker multimeter ohmmeter for continuity checker put fuse on black and red lead and if you hear beep than your fuse is ok if theres no beep fuse is burned for multimeter ohmmeter set multimeter to ohm setting closest to 1ω and put one lead on each end of the fuse and look at the.

A ceramic fuse however shows no damage upon visual inspection. Testing a ceramic fuse is the only way to tell if the fuse has blown. 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. You need to test whether the ceramic fuse has blown.