Blowing a fuse in an amplifier is a problem that most guitarists face at one time or another. If an amp won't turn on, or it turns on for a second, then makes a popping sound and turns off, the problem is usually a blown fuse. Though a blown fuse can be a hassle, especially during a performance, it does not have to put a stop to your musical enjoyment. With a spare fuse you can be back jamming to your favorite tunes in no time flat.
Turn off the amplifier and unplug it from the wall.
Locate the fuse, which is usually found at the back of the amp. The fuse will look like a small black wheel sticking out of the amp with a number and the letter V next to it. For example, 9V.
Gently turn the fuse counter-clockwise to remove it from the amp.
Discard the old fuse.
Insert the new fuse into the empty fuse slot and turn it clockwise until it is firmly in place.
Plug in the amplifier; make sure the power switch is in the off position.
Turn the amplifier on to make sure the new fuse is working properly.
Always plug the amp into a power strip with a surge protector to prevent blown fuses. Carry extra fuses to rehearsals and performances to avoid running into problems.
- Never change a fuse with the amp turned on or plugged into the wall.
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