How To Tell If A Ceramic Fuse Is Blown Without A Multimeter

To check a ceramic fuse use an ohmmeter or continuity tester.

How to tell if a ceramic fuse is blown without a multimeter.

Some fuses are fitted with control pellets that self destruct when they are blown. Testing a ceramic fuse is the only way to tell if the fuse has blown. You need to test whether the ceramic 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.

The fuse is dead if the display shows the value 1 or no sound is heard. They are easily identifiable. A ceramic fuse however shows no damage upon visual inspection. Listen for the multimeter to beep continuously as you hold the probes against the fuse.

If you don t hear any noise coming from the meter then the fuse is blown and should be replaced. If the fuse seems stuck use pliers for this. If you re using a digital multimeter set to measure resistance touch the probes together to get an initial reading. Make sure not to induce too much pressure or you might harm the conducting surface of the fuse.

It s easy to tell if a glass fuse is blown. With an ohmmeter or multimeter you should see a reading close to zero ohms if the fuse is intact or infinite if it s blown. To do this use a voltmeter ohmmeter. Unscrew the bulb and get the.

It will show scorch marks and the filament will be melted. To test a fuse without multimeter take a flashlight equipped with a flat battery.