Ceramic Fuse Black Line

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

Ceramic fuse black line.

The fuse will be one to two inches long. It will show scorch marks and the filament will be melted. The presence of a ceramic fuse ensures that an electrical surge is unable to harm the inner components of the microwave. Are they just made like that.

It may be a glass fuse with a filament or a ceramic fuse. So i took it apart and saw that the fuse had a black line going around the fuse. Although it is fairly easy for a practiced eye to identify car fuses on sight you can also look at a visual guide to help determine which type of fuse you need to. So i bought fuses and replaced the old one.

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. 4 5 out of 5 stars based on 2 reviews 2 ratings current price 5 43 5. Blade fuses are sometimes physically difficult to pull out but most vehicles come with a fuse puller tool that is located inside one of the fuse boxes or attached to a fuse box lid. Product title 14qbp20csb microwave ceramic slow blow fuse 20 amp.

It worked fine until i open the microwave door it blows every fuse i put in it. Unlike glass fuses those ceramic fuses called current limiting fuses are very fast acting filled with sand that melts into glass shall a fault occur which is an insulator thus opening the electrical circuit. A ceramic fuse however shows no damage upon visual inspection.