Question about Kicker 04KX250.2 Car Audio Amplifier

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The protection light comes on and stays on - Kicker 04KX250.2 Car Audio Amplifier

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I had this problem a few years back and it was because I didn't have a solid connection to ground. My grounding wire (which was bolted to the frame of the car) had rusted through and therefore wasn't providing a solid connection to complete the circuit. Try looking at your grounding connection and get back to me.
Other problems could be a blown AMP (there is a voltage regulator within these amps and if this goes, the protection might turn on).

Posted on Aug 31, 2010

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Posted on Jan 02, 2017

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1 Answer

I have a Rockford fosgate 501bd why the protect come on?


i say somehow you have damaged the amp, it needs repair or tip. useually output transistor or fets are faulty, if you cut the faulty ones out of circuit the other remaining channels may work

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Protect light not comeing off


not passing self test. since my crystal ball got broken I have no idea which unit you have and/or what it even is. you are prolly better bringing this one to the shop

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Generally thats a sign of a shorted output device, either a bipolar transistor or mosfet. Also ground faults can trigger a protect light.

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all of the time or only when it's off?
if it comes on when it is off, it is your stand by light. this is normal.
If it is on when the receiver is on, it may indicate an option, or it may be a protect light.
If it is a protect light, check your wiring and ratings.

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1 Answer

The protection light is lit as stays lit and i have no sound coming out


if the protection light is on its an hardware failure
the protection unit will not let you power on the Amp
need to take to service
if you want to fix the amp let me know
ecrdn@yahoo.com

Jack

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I have a lightning audio amp a B4.320.4 and Protect Lght stays on


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Um the power light will flash then the protl. light will flash its all hooked up right but weird sounds coming out my subs.


Disconnect subs from output of amplifier and then turn on car and radio. Does amp stay on or go into protect? If it stays on then there is something wrong with the subs or how they are wired (series, parallel ) to the box and amp. If it still goes into protect then something internal with amp.

Feb 23, 2010 | Concept Car Audio & Video

1 Answer

What does it mean when the red protection light illuminates


Hi the protection light comes on when there is a problem within the amps. circuitry. Generally speaking the protection light normally comes on when powered up while the amp checks all of its voltage rails so that they all lie within a specific tolerance, when all have been verified to be in spec. then the protect light goes out & the power light comes on. If the protect light stays on then a fault exists within it's circuitry. Cheers, acbva.

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1 Answer

Mxa422 protection


Outputs are fried. Try disconnecting your speakers and see if it still goes into protection mode. If it does then you A thumbs up would be greatly appreciated if answer is helpful for your question. THANK you and GOD BLESS

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1 Answer

I really need ur hlp badley


If the protection light is lit, the amplifier probably has shorted output transistors. To eliminate other possible causes, read through the following page. Let me know if you have any other questions.

Amp in Protect mode - Troubleshooting

Nov 05, 2008 | Car Audio & Video

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