Question about Rockford Fosgate RF2002 Car Audio Amplifier

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BLOWS FUSES KEEPS BLOWING FUSES WITH OR WITHOUT SPEAKERS CONNECTEDI HAVE TRIED IN 2 DIFFERENT CARS DONT BELIEVE ITS THE WIRING

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If it blows fuses only after the remote voltage is applied, the amplifier likely has shorted output transistors.


Let me know if you have any other questions.

Posted on Aug 30, 2008

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1 Answer

Why does my Definitive Pro Sub 1000 keep blowing fuses the second I put them in?


Sounds like the amp is shoot.
Never power on the amp without speaker connected.

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It now has a bad dead short in the wiring and that is why the fuse keeps blowing.. Check for bad wiring

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2002 tracker,keeps blowing 15 amp fuse that runs heatr fan and lets car shift out of park


I looked at the wiring diagrams and those two circuits should be on two different fuses.
The shift lock solenoid is powered by the 10amp turn signal fuse and the 15amp stop light fuse. If the fuse blows when you put it in park, I would say the shift lock solenoid is the problem and the stop light fuse is the one that is blowing.
The heater fan and relay are powered by a 60amp fuse and a 15amp fuse but not the stop light fuse.
Its possible there is a short some where that has connected these two circuits.
You could disconnect the shift lock solenoid to see if the fuse still blows.

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1 Answer

Brake light fuse keeps blowing in my 1997 Suburban only when towing trailers.


If the fuse blows on different trailers then it's all down to the vehicle. You either have incorrect wiring on the vehicle, a short OR the fuse is not of a high enough value to cope with the additional brake lights? You could try removing all the trailer bulbs EXCEPT the brake lights - e.g. if it's trying to power up the indicators too? That would stop the fuse blowing...... OR remove the brake bulbs from the vehicle & see if it operates the trailer without blowing...... Check the total wattage of ALL the brake lamps & see if the fuse is actually of a high enough rating? Be aware though that increasing the value of the fuse could cause damage elsewhere! As a rough guide a 25 watt bulb will pull around 2 amps at 12 volts - so 4 bulbs may pull up to 8 amps & clearly blow a 5 amp fuse! If in doubt take it to an auto electrician...... The wiring needs to be correctly protected!

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1 Answer

Kenwood KAC-729S keeps blowing fuses. Checked all cables, re-ran power, remote, and ground. All good, still blows them at power-up.


Hello opey_69a,

Here are the troubleshooting steps for fuses blowing.
1) Remove all wiring except ground, power and remote and see if the amp powers up without blowing the fuses. If it does, the problem is in the input cables or speaker wiring.
2) The use of loudspeaker impedances below the recommended minimums will cause the amp to draw excessive current - check.
3) A shorted or grounded RCA cable may cause the fuses to blow - check.
4) If an amplifier fuse blows continually, with only +12 volt, ground and remote leads connected, the amplifier is probably defective, most likely shorted output MOSFET's. In this case the amp needs professional repair or replacement.

Hope this helps.

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1 Answer

I have a dual XIA3145 580 watt amp that keeps blowing fuses


Generally, this indicates that there's at least one shorted output transistor.

Disconnect all speaker wires from the 'amplifier's speaker terminals' and disconnect RCA/signal cables from the amp. If it powers up normally, the speakers/wiring need to be checked. If it still blows the fuses, the amp almost certainly has shorted output transistors and will need to be repaired.

I'd recommend using two 10 amp fuses. The amp will power up with 10 amp fuses if there is no problem. If there is a problem, there's less of a chance of doing more damage by using the 10 amp fuses.

Let me know if you have any other questions.

babin_perry@yahoo.com

Sep 04, 2009 | Dual Electronics illumiNITE XIA3145 Car...

1 Answer

2000 honda civic vp keeps blowing low beam fuses left and right.


Fuses nearly always blow because of a bad earth. The switch only needs to short for a moment and the fuse will blow.

See if you can find a replcement swtich from a local breaker's yard or ebay and go on from there.

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1 Answer

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If your fuse keeps on blowing after you cg=hanging,that meens that there is a shortage.check it first using the multimeter.good luck.

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When fuses blow theres a problem, now how it blows help you find out where the problem is, If the fuse flashes and turns black the second you turn it on or plug it in there is a massive short in the power supply, If it blows but is clear the surge was not a dead short but a overload, Either way best to run it down to the shop and get it looked at

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1 Answer

40amp fuse blows


Measure the DC voltage across the B+ and ground terminals as well as across remote and ground. If you have less than 11 volts when the amp tries to power up, the amp could be shutting down due to low voltage.

If the voltage remains near or above 12v, disconnect all speaker wires and signal cables from the amp. If it powers up, the wiring needs to be checked. If it still shuts down or blows the fuse when you apply remote voltage (turn the head unit on), the amp likely has blown output transistors.

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