How To Know When A Ceramic Fuse Is Blown

To do this use a voltmeter ohmmeter.

How to know when a ceramic fuse is blown.

This is necessary for ceramic fuses since they don t develop a blackened appearance like blown glass fuses. A ceramic fuse however shows no damage upon visual inspection. 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.

Listen for the multimeter to beep continuously as you hold the probes against the fuse. Make sure not to induce too much pressure or you might harm the conducting surface of the fuse. Testing a ceramic fuse is the only way to tell if the fuse has blown. If too much current flows through a circuit a fuse is designed.

If you don t hear any noise coming from the meter then the fuse is blown and should be replaced. Thomas j peterson photographer s choice rf gettyimages. If the fuse seems stuck use pliers for this. 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.

Testing a ceramic fuse is the only way to tell if the fuse has blown. 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 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 discolouration in the centre of the fuse. A ceramic fuse however shows no damage upon visual inspection.