why do i keep blowing fuses?
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From: gulf coast, ms
why do i keep blowing fuses? i'm trying to hook up a mtx amp to the 8's i installed a while back. the problem is this. last night the amp would come on. i tried hooking them to the subs, then they wouldn't play. then the amp just started blowing fuses. i have the wires run down the passenger side.
the battery wire goes across the motor to the battery auxillary post. is that not a good place for it? it seemed the most logical to me. then i had found one of my rca wires had got punctured by a screw that holds the side trim down, fixed the problem, even unhooked the rca's from the amp. and with the ground, remote, and batt wire, it's still blowing fuses.. WTF?
the ground wire is attached to the top of the wheel well. i've used a test light, and it's getting power, and i'm not finding any other holes or anything in any of the other wires.
so why do i keep blowing fuses? is it because the wires are run along the passenger side? should they be run down the middle? i just don't get why the amp was powering up last night, but now it's just popping fuses.
thanks.
the battery wire goes across the motor to the battery auxillary post. is that not a good place for it? it seemed the most logical to me. then i had found one of my rca wires had got punctured by a screw that holds the side trim down, fixed the problem, even unhooked the rca's from the amp. and with the ground, remote, and batt wire, it's still blowing fuses.. WTF?
the ground wire is attached to the top of the wheel well. i've used a test light, and it's getting power, and i'm not finding any other holes or anything in any of the other wires.
so why do i keep blowing fuses? is it because the wires are run along the passenger side? should they be run down the middle? i just don't get why the amp was powering up last night, but now it's just popping fuses.
thanks.
Couple of things id check, 1 is your ground good? all the paint removed from wherever you have it grounded, should be bare metal. 2 where the wire go into the amp +,-, and remote, sometimes the wires fray by the connectors and 1 strand will touch another and blow the fuses. also try unhooking thesubs and just powering on the amp to see if something internal in the subs is causeing it.
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From: gulf coast, ms
all of the connections were good. ground, connectors etc... is it ok to hook the power wire to the batt aux? i just don't get it. i tried putting a 40 fuse in instead of a 30 and i just blew the fuse on the amp.
when ever i turned the car on, as soon as the amp kicked on the fuse popped.
it worked for a little bit last night, but no sound was coming out of the speakers.. wtf?
when ever i turned the car on, as soon as the amp kicked on the fuse popped.
it worked for a little bit last night, but no sound was coming out of the speakers.. wtf?
disconnect your speakers from the amp, then try. If it still blows the fuse, I'd say your amp is toast.
Also, never use a bigger fuse then what the amp says to use, fires can start that way.
it's generally not recommended to run amps from the aux terminal, unless they are very small. However, that will not cause fuses to blow. Might catch your car on fire if you are running a very big amp, but you won't blow amp fuses
.
mike
Also, never use a bigger fuse then what the amp says to use, fires can start that way.
it's generally not recommended to run amps from the aux terminal, unless they are very small. However, that will not cause fuses to blow. Might catch your car on fire if you are running a very big amp, but you won't blow amp fuses
.mike
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your amp does not have a reverse polarity trip in it.it you probably fried one of the main circuits.pop the cover and see if it does have a trip that you can reset should the positive and neg accidently get hooked up the wrong way.most likely it doesn't.
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From: gulf coast, ms
Nothing got hooked up wrong. i made sure everything was straight before i turned everything on. the only problem was a screw grounded out a rca wire. but once that problem got solved it should have been ok right? that's why the amp has a fuse. the fuse on the amp should have blown if there would have been a problem right?
Do you have the amp attached to anything? i once had an amp mounted on the back seat and the screws that i screwed it in with went into the seat back... which was metal... which grounded the amp and fryed it
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From: gulf coast, ms
it's not mounted to anything. i just had it sitting on the back well on the carpet. you don't think that since the carpet is so thin that it's grounding out through the carpet huh? and when i tried hooking them up to the 8's, i wasn't getting any sound. i know the subs work, cause right now they're wired to my HU. i had the gain on the amp pretty much all the way down.
I think your amp is toast. If it's blowing fuses with no speaker, and no inputs hooked up, and it only does it when you turn it on, not with the system off, then it has to be something internal to the amp.
sorry, I know it sucks, but it sounds like it's time to buy a new amp, or return this one if you have any warranty.
sorry, I know it sucks, but it sounds like it's time to buy a new amp, or return this one if you have any warranty.
I had a small MTX amp that unfortunately, did the exact same thing after I shorted the bridged speaker wires out on accident.
The speaker leads got crossed in carelessness, which tripped the amp up and blew the fuse. From that day forward the amp would instantly blow any new fuse put in it when powered up. Many amps would not be so sensitive to a single mishap, but it very is possible. I learned my $75 lesson that day, fortunately it was a cheap little MT202 or something like that.
Not adding much to the discussion but just wanted to verify that it is possible that a broken amp will immediately blow fuses when powered up, regardless of load.
The speaker leads got crossed in carelessness, which tripped the amp up and blew the fuse. From that day forward the amp would instantly blow any new fuse put in it when powered up. Many amps would not be so sensitive to a single mishap, but it very is possible. I learned my $75 lesson that day, fortunately it was a cheap little MT202 or something like that.
Not adding much to the discussion but just wanted to verify that it is possible that a broken amp will immediately blow fuses when powered up, regardless of load.
