Fuse keeps blowing, help!

[PiLOTLiTE]

The 30amp fuse in my amplifier blows the minute I put power to it. The problem started when I was just going down the road listening to the radio when all my bass went bye-bye. I've gone thru like 5 fuses and it doesn't work for even a second, just blows immediately. I checked all the wiring and its good. What could be the problem?

[firebirdman225]

my friend had the same problem with his car when he turned it up to a certain level, he had too much power on the wires, therefore put a bigger fuse in, but he also had to replace the wires to so the wouldnt "melt"

[TransNot]

also might wanna make sure your power wire isn't grounding out anywhere. i wouldn't advise putting a bigger fuse in there (although i'd probably do it), it's 30 amps for a reason. what kind of amp is it?

[MTMike]

Is it the amp's internal fuse or the fuse at the junction block/battery +12VDC source?

If it's the amps internal fuse it sounds like an internal short in the amp. If it's a the +12vdc source it sounds like the wire is grounding out somehwere between the amp and the source.

Good luck!!!

-Mike

[PiLOTLiTE]

To answer a few questions, its a Sony XM-1002HX and its the amps internal fuse that sticks out the side. I guess I could try putting a larger fuse, but its 30amp for a reason I'm sure as well.

As for the power wire grounding out, I took the box/amp and wiring completely out of the car and ran it, the fuse still blew. So I'm looking at a problem inside the amp I assume. How much to fix that? Or just get a new amp?

[v6maro]

<blockquote>quote:</font><hr>Originally posted by PiLOTLiTE:
To answer a few questions, its a Sony XM-1002HX and its the amps internal fuse that sticks out the side. I guess I could try putting a larger fuse, but its 30amp for a reason I'm sure as well.

As for the power wire grounding out, I took the box/amp and wiring completely out of the car and ran it, the fuse still blew. So I'm looking at a problem inside the amp I assume. How much to fix that? Or just get a new amp?<hr></blockquote>

Honestly you'll be better off with a new amp unless you have a warranty on it. Sony's arent the best, you could find something a lot better for about the same price, or not much more.
-Steve

[MTMike]

<blockquote>quote:</font><hr>Originally posted by PiLOTLiTE:
[QB]I guess I could try putting a larger fuse, but its 30amp for a reason I'm sure as well.[QB]<hr></blockquote>

Please don't do this

If something is going wrong in there causing consistant current at &gt;30 amps and blowing a 30 amp fuse then all a bigger fuse is going to do is cause a fire. The internals were designed to be protected by that 30 amp fuse, meaning the internal wiring. Putting a bigger fuse will allow more current then designed in the internal wires which will surely cause them to overheat, melt and possibly start a nice little fire.

I'm with Steve on this one..... either take it back under warranty or get a new one. It's definately something internal.

Good luck!

-Mike

[v6maro]

<blockquote>quote:</font><hr>Originally posted by MTMike:


Please don't do this

If something is going wrong in there causing consistant current at &gt;30 amps and blowing a 30 amp fuse then all a bigger fuse is going to do is cause a fire. The internals were designed to be protected by that 30 amp fuse, meaning the internal wiring. Putting a bigger fuse will allow more current then designed in the internal wires which will surely cause them to overheat, melt and possibly start a nice little fire.

I'm with Steve on this one..... either take it back under warranty or get a new one. It's definately something internal.

Good luck!

-Mike<hr></blockquote>

On my inline from my car battery to my amp I kept blowing fuses left and right, I upped that and didnt have a fire. But I think you are tlaking about the one ON the amp, and ALWAYS leave that stock, like you said, it's only made to handle that.
-Steve

[MTMike]

<blockquote>quote:</font><hr>Originally posted by v6maro:


On my inline from my car battery to my amp I kept blowing fuses left and right, I upped that and didnt have a fire. But I think you are tlaking about the one ON the amp, and ALWAYS leave that stock, like you said, it's only made to handle that.
-Steve<hr></blockquote>

In some cases this is true... the inline fuse can be as high as the wire can handle.... a 30 amp on 8 guage wire is under-fused, so you can safely put a 40 or even 50 in place of it on. But, if you had 10 gauge and put higher than a 30, you would be pushing the limits of the wire.

I have my 4awg wire fused with a 120amp fuse in-line, and then have my amp's 50 amp fuse hooked up to it. If it shorts out at the amp, it'll blow the 50. if it shorts out before the amp it'll pull 120 amps (but safely because it's 4awg) This way the wire is protected but I can still add another amp on later.

-Mike

[Mikey]

Try to make sure the wiring is correct from your subs to your amp. I my 4 ohm subs wired as 1 ohm (oops) and i kept blowing fuses. I switched a couple wires and now its fine. [img]smile.gif[/img]