How to Check if a Fuse Is Good or Blown

There are 2 ways to check if a fuse is good or blown.
You can check the fuse visually to see if it's broken or you can do an electrical test on it using a multimeter to see if it's good or blown.

Visual Test

The first way is to do a visual check of the fuse. If the fuse has a broken or melted connector, it is blown.

The picture below show 2 blown fuses.

A good fuse does not contain a broken connector and connects from one end of the fuse to the other.

The picture shown below are of 2 good fuses:

Electrical Test

Besides the visual test, the other way to check if a fuse is blown is by conducting an electrical test to check for continuity from one end of the fuse to the other.

You do this by taking a multimeter and placing one probe on one end of the fuse and the other probe on the other end. You put the multimeter on continuity mode.

If the multimeter beeps, this means that the fuse is continuous and, therefore, the fuse is good. This is because it it continouous, meaning no broken connection.

If the multimeter does not beep and shows a large resistance, this means the fuse is blown. This is because the connector is not continuous, meaning it's broken and not connected.