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Blowing Fuses

DRD-00F

By DRD-00F,
in Car Audio & Electrical

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DRD-00F Grand Master

DRD-00F

Posted
Posted

Hello :)

I seem to be having a fuse blowing problem... my amp, whenever turned on, will blow my inline fuse... one of the long cylindrical gold tipped ones...

the last thing i want to do is send my amp off for repair, cause it wont be back for some time, most defenately not before SNS...

I took the RCAs out thinking it may have been a shitty signal... that was one fuse...

I took the power out to the subs out, thinking it may have been stripped and earthing somewhere... that was two fuses...

so its still blowing fuses with just positive, negative and a remote signal...

I only have one fuse left, and im starting to think its almost certainly the amp acting up :thumbsup: which i really dont want to believe...

I also have it sitting on my lap, and i can't see any problems with it... I have seen quite a few amps, good and bad to know what to look for, and i cant find anything wrong here... I did find a tiny little switch that is name SW1 and has an on and off feature... im assuming this is for the crossover and gain controls...

in the mean time, im going to go hook up another amp, if i can find a 20 amp fuse...

Specs:

Amp: Earthquake PHD5000W 3kwRMS amp

Fuses: 60 amp x4 blown :wacko: 1 left

Wiring: 8 Gauge straight from battery, through a fuse, and neg back to battery again (couldn't find any problems with the wiring)

extra notes: When all are together, pow, neg, and remote, there is a high pitch whining noise, which gains amplitude for a little while, then fizzes out as the fuse melts... its ghey :O

so yeah... anyone have any ideas... anyone.... anyone??? :( probably shouldn't have asked on a saturday night at 7:45...

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DRD-00F Grand Master

DRD-00F

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try a fatter gauge wire? say a 4 gauge?

all the times ive installed systems and blown fuses was cause i didnt have the negative wire from the amp grounded correctly

checked that... its been working for some time now, and this happened out of nowhere... and like i said, its a 60 amp fuse, so it doesn't just pop willy nilly, you can hear too much going through it, heating up, then you get to watch it melt :P

and i dont think a larger gauge wire will help...

ill go double check all the wiring though, just for you :)

anyone else got any ideas i may have missed? im not sending it off til after SNS... it ay not work, but it gunna look like it can :(

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Fixxxer Community Regular

Fixxxer

Posted
Posted

Hey there,

I'd throw a post up on caraudioaustralia forums, they may be able to help further.

Do you have a R33 (battery in boot) so you connected the ground back to the battery? What are the spec's on the amp (watts RMS @ what ohm rating) and how many subs are you running, and the ohm rating of each sub.

I would have thought both your wiring and fuse rating is insufficient for this amp anyways. Would have thought you would need a proper ANL type fuse (i thinks its called that) of at least over 100amps to get the most out of this amp, and you'd be best to go at least 4ga (even for a short run), 2ga even better.

Does the fuse blow when you turn the amp on but have it on very low volume, or no sound at all, or do you crank the system and watch the fuse melt??

Fixxxer

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DRD-00F Grand Master

DRD-00F

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the fuse melts without a signal going to the amp... as soon as the amp is activated, it melts... it never used to, hence why i have come to the conclusion that this is not normal :)

people tend to over compensate wiring, i dont know why... 2ga is over kill... 4ga might be a bit better, but its got 8 gauge plugs in it, fitting 4ga would be rather difficult, though i may do it down the road when i come to a boot isntall that is more then temporary...

yes, R33... and its back on the battery cause it is pretty much the closest, and best ground point...

the amp is 3000wattsrms at 4ohm mono i believe, the subs are 1000watts rms each...

I think 100 amps is a bit much also, there is a higher chance of damage to the amp if that were to happen...

though i will make a thread on CAA ;) thanks for your advice...

anyone else??? :( please

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DRD-00F Grand Master

DRD-00F

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I love TLA's :)

yeah i posted it up there yesterday... they were all very kind in telling me that my wiring isn't big enough, and that my grounds weren't good enough... but other then that, no real help...

i'll do my last test tonight hopefully, then send it off for repairs...

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