Hi Andrew,
It will encountered once the unit gone to overload and/or short circuit. First thing to check are the speakers connected to the amp, and other inputs. Disconnect all of them and then power up the unit, if the symptoms remain the same, this is an indication that the circuit board inside gone to malfunction. If the unit power up fine, then the fault is either on the speaker or on the inputs. Check the speakers and inputs connector for shorts.
Jdvillanueva
SOURCE: kicker kx 800.4
Generally, if a Kicker amp has the power light lit and the protection light isn't lit, it's working. Are you sure that you have signal feeding the amp?
Are you sure your speakers are OK?
SOURCE: Protection light on Kicker ZX700.5
Considering you just bought it, the amplifier itself is probably not the issue. Small chance it is, but we'll go with that a last resort. Have you hooked it up without any speakers connected? Does the light still come on? Describe all the connections you have made to amp (what came from where, and what terminals it is connected to.)
SOURCE: orion cs150.2 amp power light "red"for protected need "green"
remove the load (subwoofer)...
ensure the power and remote have 12V (remotoe only when the car is on)....
And make sure the ground is a good one - sanded and screwed.
If you now turn on the car, and the red light for protection still stays on, your problem is internal, and it will need to be serviced. This is not something that you can crack open and fix, as there are lethal amounts of stored energy in the power supply and capacitors.
If the light goes on, youe sub(s) is/are at fault. Check the impedence with a multimeter set to OHMs and read the voicecoil. It should read pretty near to 4 or 8 ohms.
But since your amp is the only piece new to the equasion, chances are the problem lies within the amplifier.
It either has fried components, or your subwoofer(s) are wired to a low enough impedence that your amplifier does not like.
With more info... model #s voicecoil configurations I can help you better. I will c/p an answer I wrote recently regarding amplifier failure.
SOURCE: Amp on "protect" mode
Hi, what you need to do is unplug all the connections to the amp. The amp goes into protection when the circuitry over heats.\
First decrease all your gains to minimal volume.
Connect your 12+V, remote, and ground.
See if the protection light comes on then.
Next plug in your RCA cables.
Check protection light.
Then plug in your subwoofer cables.
See if you are still in protect mode.
Hopefully everything works alright again.
Just slowly increase the gain to see what the cut-off is. Make sure you aren't dropping the ohmage too low on the amplifier. Check manual for correct wiring and such.
SOURCE: what does sub sonic mean on my Kicker kx1200.1 amp? Do it need to be off or on?
Subsonic refers to frequencies too low for the human ear to hear. Generally humans can hear frequencies in the range of 20 to 20000 hertz (cycles per second), but we hear best in the range of 1000 to 4000 hertz. High amplitude subsonic frequencies can cause damage to your speakers so many amplifiers have an electronic filter in them to reduce the amplitude of these very low frequency signals.
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