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Amp keeps turning on and off, checked power and ground already.

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Old 05-05-2012, 06:53 PM
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Default Amp keeps turning on and off, checked power and ground already.

I have a Rockford Fosgate Power 250M (yes dinosaur) it started to cut on and off recently, power and ground are fine, is it something with the amp? The red LED light at the top glows bright then starts to dim and go off and then light up slightly and repeat til I got tired of looking at it.

If the amp is going out, whats a good replacement for my model, not looking to upgrade anything just miss hearing bass.
Old 05-06-2012, 10:49 AM
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Bump.
Old 05-06-2012, 05:38 PM
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Did you also check the remote on connection?
Old 05-06-2012, 08:48 PM
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Did you check the fuse
Old 05-06-2012, 10:37 PM
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Mine too, if you find the issue let me know.
Old 05-06-2012, 10:42 PM
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Perhaps its tripping the internal overload circuit due to internal short or faulty circuitry? I had an amp do something similar, it was internally shorted to the case and was then shorting to the car through the mounting screws.
Old 05-07-2012, 01:20 AM
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is it in protection mode?
Old 05-07-2012, 05:30 PM
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Originally Posted by SparkyJJO
Did you also check the remote on connection?
I have 2 amps and they both run off 1 remote wire, the tap is good still.
Originally Posted by bizerk1
Did you check the fuse
No external fuse I can see and the fuse on the power wire is ok too.
Originally Posted by hardrock21
Perhaps its tripping the internal overload circuit due to internal short or faulty circuitry? I had an amp do something similar, it was internally shorted to the case and was then shorting to the car through the mounting screws.
I opened it up and nothing looked burnt/loose
Originally Posted by bizerk1
is it in protection mode?
How do I know if its in this?
Old 05-09-2012, 12:57 AM
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do you have owners manual, read it it should so what the light does if it goes in protection mode and how to fix it. If not try and find the owners manual through google, there should be online copy
Old 05-12-2012, 11:16 PM
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Same here, amp for kicker goes in protection mode. When I turn car off then on the woofer works for either 30 seconds and sometimes a half hour. All fuses are good. I cannot get it working while it is in protection mode by checking connections ( ground wire, power wire, battery connection ). Have to shut off then turn car back on. I do not have knowledge in this area. What can cause this? It is a 1000 watt amp pushing a single 12 inch alpine type R. Not having problems with my door speakers or rear seat speakers. They run on seperate amp.
Old 05-13-2012, 08:21 PM
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Bump up.
Old 05-13-2012, 08:51 PM
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Sounds like possibly a bad amp to me. You mention the sub model but not the amp - is it some generic noname or something?
Old 05-14-2012, 05:08 PM
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I'm pretty sure it's a candaence amp. I bought it used off ls1 classifieds with a side box. The last time I had a no name brand called etx that thing worked great for 8 years until I sold the car.
Old 05-15-2012, 12:57 AM
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There is no protection light on this thing, probably going out since it hasn't worked in a few days. Whats a good decent amp to replace it with?
Old 05-21-2012, 09:52 AM
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After about a week of not working my amp started working again for like 30 seconds haha
Old 05-21-2012, 04:58 PM
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I replaced the amp. Everything is working fine now. Thanks
Old 05-21-2012, 05:23 PM
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np. Sorry it had to be the more expensive fix
Old 02-03-2014, 09:01 AM
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Sorry for the bump but I found the problem and for anyone searching that comes across this thread I'd prefer it not to end on an unsolved note (I know I hate when I see a thread relevant to my problem and no one posted a fix lol)

My problem with the amp intermittently working was the power wire. Despite it checking out at 12+ v at the amp side from the battery. The entire length of the wire was corroded so I replaced the power wire and all was fixed.
Old 02-03-2014, 12:06 PM
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What kind of wire did you use originally, and how old was it? Just curious if it was copper clad aluminum, or oxygen-free copper. OFC is supposed to last longer, just wondering what your experience was. I'm using all OFC.



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