Question about Rockford Fosgate P3001 Car Audio Amplifier

1 Answer

Stuck On Thermal Mode.

So I got the P3001 hooked up to 2 Rockford P2 12's. My amp is flickering Thermal but the amp isnt hot. Even when I unplug the subs its still in Thermal mode. Sometimes it will catch and the subs will hit for a minute but after that nothing but some popping sounds. Someone told me that the amp could be shorted out inside. Any Help?

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  • niggnogg Apr 12, 2008

    my amp thermal light only comes on when disconnecting the groung wire,all the time with no power going to my amp.

  • hungerunger Jun 16, 2008

    my thermal light stays on and my amp does nothing. when i take out the fuse shouldn't it turn off? it stays on. if possible... could anyone tell me wat i need to fix? i dont have warranty so im fixing it myself. i changed a mosfet because the other one was fried. as far as i know the mosfet is working fine since its not glowing red and the connections of the power sparking when i connect the power to the amp. the thermal light just comes on. i already tried disconnecting all other wires except for power but still nothing. just thermal. i wonder if its just the ic between the two fets or because i glued it with epoxy to the heat sink. maybe it sends current through it? i need help please!

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  • Master
  • 631 Answers

With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low.


If the voltage remains near or above 12v, disconnect all speaker wires from the speaker terminals of the amp and disconnect signal cables from the amp. If it powers up, the wiring needs to be checked. If it still remains in thermal protection, the amplifier likely has an internal fault and will need to be repaired.

Posted on Dec 29, 2007

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Posted on Jan 02, 2017

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Check this out: http://www.techlore.com/article/14696/

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