fuse holder keeps melting

[american bass91]

two weeks ago where my power cord goes into my fuse holder it started turning black but i didnt think nothing of it. then today i started smelling a burning smell so i lifted my hood and i seen that my fuse holder melted and even the metal inside of it melted.i had a 100 amp fuse in it 4 awg power wire ap1000 d1 amp and 2xfl 12s

and i just want to know why this keeps happining

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[jrdnhsnbrg 10+ year member]

I have no idea... I guess try cutting the old fuse holder out and throw a new one in there. If that doesn't work replace the whole power wire. Idk if anyone else has experience with a problem like this on the forum but that's the only suggestion I can think of.

 

[Kingstroker 10+ year member]

sounds like a loose connection

 

[jrdnhsnbrg 10+ year member]

After reading some other forum topics with the same problem my next suggestion is to make sure the fuse holder isn't near anything that gets warm, as close to the battery as you can is ideal. Mine is resting between my battery and air filter, nothing heats up there.

 

[phemps 10+ year member]

Sounds like a loose connection to me as well

 

[american bass91]

what should i look for if i do have a loose connection?

 

[tommydh 10+ year member]

two things 1 loose connections and 2 I think you are over the ampacity of the fuse holder itself. What is the size fuse in the two amps? Your main fuse should not be smaller than the total

 

[american bass91]

i had it on top of my antifreeze tank i think

 

[american bass91]

audiopipe amps dont have fuses in them but i was using 100amp fuses in fuse holders for both amps

idk if its some type of loose connection or what though

idk what to look for

 

[tommydh 10+ year member]

what should i look for if i do have a loose connection?

to test loose connection physically tug on the wire if it moves its loose. Did you use crimp style terminals, set screw or solder type? Did you use proper Crimp tool if crimped? Over ampacity means over what te fuse can handle, not where it was placed.

 

[mylows10 5,000+ posts]

also what kind of wire ,brand wise , if the wire is to small to handle the load it will melt the fuse block and discolor the wire ,check for lose ground to

 

[tommydh 10+ year member]

How many amps are you running? Do you have fuse within 18" of the battery? Is there a fuse near amps since no fuse in amp.

 

[american bass91]

im thinking it was maybe to much for the fuse to handle maybe because thats a grade a amp

but the only thing that i didnt have super tight was the screw that holds the power cord and the ring terminal to the battery.i just screwed it in with my hand

 

[tommydh 10+ year member]

If your running 2 ap 1000's you need more than a 4 gauge from battery to a distrobution block

 

[american bass91]

yeah you know ya stuff man.lol

yeah i did get some discoloring way b4 it started melting

i have a 4awg lanzar power wire and i have my system at 1 ohm