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Gallien-kruger 250rl amplifier keeps blowing fuses.

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  • Anonymous Jul 08, 2008

    Keeps blowing fuses.

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1 Answer

Repeatedly blows fuses


It's probably not your outlet, but try to get it into another one so you are sure.
It could probably be that something is wired short, so the amp draws extra amperes, therefore blows fuses.

Feb 27, 2014 | GallienKrueger Gallien Krueger 800rb

1 Answer

Amc amp fuse keeps blowing


Fuses blow when there's an overload. Suspect a faulty semi-conductor device somewhere.

Dec 14, 2012 | AMC Multimedia 2N100-2 2-Channel Amplifier

1 Answer

The two 5 amp fuse inside the amplifier keeps blowing


Hi,

That must be the inrush current.
Maybe you are using the wrong fuses.
Please check if those are fast or slow types.
You need slow types.

Good luck,
Gerard

Jan 17, 2010 | Audio Players & Recorders

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.

Sep 19, 2009 | Kenwood KAC-729S Car Audio Amplifier

1 Answer

The fuse keeps blowing in my marantz pm-57 amplifier. It says it takes a T 2.5A 250V fuse. I can only find 2.5A 250V fuses. What relevance is the ''T''.


Goo day sir, the T on the fuse has nothing to do on you marantz fuse blowing up, chances are you amplifier is shorted, check you IC amplifier/power transistor for shorts. Check also your speaker impedance. usually they are 8 ohms. You can use a technician's multitester device to check the impeadance. An imbalance or mismatch speaker can cause a fuse to blow and destroy your amplifier. hope this helps.

Jul 31, 2009 | Marantz PM-15S1 2-Channel Amplifier

1 Answer

I have a 25 wat fuse in my power wire connected to my amp and i keep blowing it. should i put a bigger fuse in it?


Hello grabert205,

You do not say if the fuse blows immediately upon powering up or while the amplifier is operating. If it blows immediately, I'd check the power and ground.

If it is blowing the fuse while operating, I'd try a 30A and see if it holds. At maximum output of 100 watts times 4, the amplifier needs about 31 amps of current at 12.8V. So driving it hard could certainly blow a 25A fuse.

Hope this helps.

Jun 13, 2009 | DHD LCD-9444 Car Audio Amplifier

1 Answer

Blowing fuses


Are you sure you don't have the positive and negative power wires reversed?

Does the fuse blow without remote voltage applied?

Nov 09, 2008 | Jensen JPA285 Car Audio Amplifier

1 Answer

BLOWS FUSES


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.

Aug 30, 2008 | Rockford Fosgate RF2002 Car Audio...

1 Answer

Fuse keeps blowing


The amplifier probably has shorted output transistors. If the amp only blows the fuse after remote voltage is applied, the damage may be minor. They generally blow two transistors. Sometimes that's all that needs to be replaced.

Let me know if you have any other questions.

Aug 29, 2008 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

Have a kenwood kac849 600w amp keep blowing fuse on amp as soon as power is too it power wire got wet and now this can i bypass that fuse some how


It would be very dangerous to bypass a fuse. If it keeps blowing, bypassing the fuse will only create lots of internal damage and maybe a fire as well. The fuse is blowing for a reason, the amplifier is not going to somehow start working because you bypassed the fuse. You also need to stop trying to turn it on, every time it blows the fuse, it keeps stressing the components inside. You have a shorted power supply, probably water damage as well since the power wire got wet.

I repair car amplifiers for a living, and can tell you with all honesty that bypassing the fuse would be a terrible mistake to make, the amplifier would end up being un-fixable with holes burned right into the board.

Please, just take it in for service or get a new amplifier. That is the only sensible thing to do. The amp will not start working bypassing the fuse, it will only start smoking.

Jul 10, 2008 | Kenwood Car Audio & Video

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