Question about Jl Audio 250/1 Car Audio Amplifier

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Jl audio 250/1 thermal light

The amp was installed in my truck about 6 monthes ago on day while in use the thermal light came on everything say when temp goes down it will start again its been 2 weeks of not bein used and still wont work is the amp fried or could a blown speaker cause this chaos i have blon amps and sub b4 there was any smell when it stop workin from speakers or amp

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I was having issues with this amp as well, the thermal light was flashing every couple seconds. i checked all the connections and i discovered that when i pulled the power wire out the thermal light was still flashing, which tells me that there was no power from the power wire, but it was getting power from the remote wire. i know this because it would stop flashing when i removed the remote wire. but wouldnt start when i didnt connect the remote wire but connected the power wire. so with the power meter i checked the fuse and it was a little loose so i screwed it back in and the amp turned right on. 
to make a long story short, a flashing thermal light is a power supply issue.

Posted on Jul 27, 2009

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The power to my 250\1 JL amp stays on even when the ground is disconnected. it should shut off right? what do i do?

Posted on Mar 17, 2009

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Disconnect all speaker wires from the amp and disconnect the RCA cables from the amp. If it still goes into protect mode, use a multimeter to confirm that you have 12v on the B+ and remote terminals. Place the black meter probe on the ground terminal of the amp when measuring the voltage. If the voltage is sufficient and the amp goes into protect, it will have to be repaired. JL only accepts repairs from authorized dealers. You'll have to find one in your area or you'll have to find a repair shop willing to work on JL amps.

Let me know if you have any other questions.

Posted on Oct 15, 2008

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