Question about Rockford Fosgate Punch P5002 Car Audio Amplifier

2 Answers

I have a Rockford Fosgate Puch 1000 watt amp "thermal" problem

Like i said the thermal light keeps turning on, the subs wont hit but the amp turns on, but the thermal light turns on. i wasnt doing ne thing out of the ordinary just going to school. F.Y.I i leave the gain up all the way and the freq. dwn the whole way, other then that i dunno what could have happened, can u guys plz help me out, i need that amp for the next bass comp for may 25 :P if i cant get it fixed i have 2 crappy 12" kicker comp VR's and 2 12" "lightning audio" Wallmart kickers hooked up to a Fosgate 426 amp. it sounds poopy in the trunk of my Nova, its all bare metal. but yea ne ways sorry for bsing ..... HELP MEEEEE!!!!!!

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  • d3lgad00619 Dec 12, 2008

    i have the rockford fosgate p2002 amp.
    and i hooked it up and it wont turn on anymore!!!
    but if i unplug the ground and the 30A fuse then it the corners of the rockford fosgate logo lights up and the thermal light goes on.
    i plug em back in and the amp wont turn on or anything='[[[
    somebody please help me=[[[[[[[

  • Anonymous Apr 23, 2009

    sub just stopped same amp as dude really same problem

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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 without the thermal LED being lit, the wiring needs to be checked. If it still indicates that it's in thermal protection, it needs to be serviced. A local repair shop will be the quickest. Rockford will email you the schematics.

Posted on Apr 08, 2008

  • Tyler Jones
    Tyler Jones May 20, 2015

    I had the same problem with the same amp. Stuck in thermal mode. The problem was where the ground cable connects to the car chassis, mine was completely disconnected. My subs still had faint power since the ground cable was still touching the metal. But once I fixed the connector is was good as new!! No more Thermal light.

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Posted on Jun 27, 2008

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