Jump to content
SAU Community

Recommended Posts

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...

Link to comment
https://www.sau.com.au/forums/topic/173918-blowing-fuses/
Share on other sites

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 :(

Link to comment
https://www.sau.com.au/forums/topic/173918-blowing-fuses/#findComment-3195096
Share on other sites

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

Link to comment
https://www.sau.com.au/forums/topic/173918-blowing-fuses/#findComment-3196258
Share on other sites

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

Link to comment
https://www.sau.com.au/forums/topic/173918-blowing-fuses/#findComment-3196322
Share on other sites

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...

Link to comment
https://www.sau.com.au/forums/topic/173918-blowing-fuses/#findComment-3197894
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Even more fun, leave all the ADAS stuff plugged in, but in different locations, hopefully avoid any codes!   And honestly, all these new cars with their weird electronics. Pull all the electronics out Duncan, and just shove an aftermarket ECU and if needed a trans controller in, along with a PDM. Make it run basic but race car styled!
    • To follow up a question from earlier too since I had the front bar off again (fking!) This is what is between the bumper and the drivers side wheel And this is the navigator side, only one thing but its a biggy! So basically....no putting coolers in the wheel arches without a lot of moving other stuff. Assuming I move to properly race prepping this car I'll take that job on and see how the computers respond to removing a whole bunch of ADAS modules
    • So I prepped the car for another track day on Wednesday (will be interesting to see coolant temps post flushing out and the larger reservoir, with a forecast of 3-14 being 20o cooler than last time I took it out). Couple of things to mention; since I am just driving the car and not taking a support vehicle, I took the rear seats out and just loaded the back up Team Trackday style. Look at all that space! To cover off removing the rear seat....it is weird (note the hybrid is probably different because it wouldn't have folding rear seats) Basically, you remove the lower seat base, very similar to a r series but it is a clip that pulls forward to release the base rather than it being bolted down. Easy Then, you need to remove the side section of the rear seat on each side. There is a 14mm head nut at the bottom of the side piece, the it slides upwards off a hook at the top to release; you also need to unhook the seatbelt from the loop at the top. Then the centre piece is weird. You need to release/fold the seats forward with the tab in the boot on each side From there, there are 2,x12mm headed bolts holding the rear of each seat to the folding bracket, under the trim between the rear seat and the boot (4x christmas tree clips there, they suck). The seat is out but you can see where the bolts attach to the bracket
    • As discussed in the previous post, the bushes in the 110 needed replacing. I took this opportunity to replace the castor bushes, the front lower control arm, lower the car and get the alignment dialled in with new tyres. I took it down to Alignment Motorsports on the GC to get this work done and also get more out of the Shockworks as I felt like I wasn't getting the full use out of them.  To cut a very long story short, it ended up being the case the passenger side castor arm wouldn't accept the brand new bush as the sleeve had worn badly enough to the point you could push the new bush in by hand and completely through. Trying a pair of TRD bushes didn't fix the issue either (I had originally gone with Hardrace bushes). We needed to urgently source another castor arm, and thankfully this was sourced and the guys at the shop worked on my car until 7pm on a Saturday to get everything done. The car rides a lot nicer now with the suspension dialled in properly. Lowered the car a little as well to suit the lower profile front tyres, and just bring the car down generally. Eternally thankful for the guys down at the shop to get the car sorted, we both pulled big favours from our contacts to get it done on the Saturday.  Also plugged in the new Stedi foglights into the S15, and even from a quick test in the garage I'm keen to see how they look out on the road. I had some concerns about the length of the LED body and whether it'd fit in the foglight housing but it's fine.  I've got a small window coming up next month where I'll likely get a little paint work done on the 110 to remove the rear wing, add a boot wing and roof wing, get the side skirt fixed up and colour match the little panel on the tail lights so that I can install some badges that I've kept in storage. I'm also tempted to put in a new pair of headlights on the 110.  Until then, here's some more pictures from Easter this year. 
    • I would put a fuel pressure gauge between the filter and the fuel rail, see if it's maintaining good fuel pressure at idle going up to the point when it stalls. Do you see any strange behavior in commanded fuel leading up to the point when it stalls? You might have to start going through the service manual and doing a long list of sensor tests if it's not the fuel system for whatever reason.
×
×
  • Create New...