Even though there is a large diode inside of the amp to protect from reverse power wire hook up this does not always work to protect the amp. Sometimes it wil protect the amp and the amp will work for a day or so then completely quit, all amps are different. In your case your power supply mosfets are burnt, shorted and need to be replaced.Also the gate resistors need to be checked to be sure they are fine. These resistors go to the gate pin on the power supply mosfets and they lower the current going in to the mosfets. Also the output mosfets need to be checked. Sometimes they get shorted out even though they are not part of the power supply, sometimes they do get shorted when the power wires get reversed during hookup. As I said each amp is different and will react differently when this occurs. I have a small business repairing car amps and installing and selling car audio, also any electronics repair, TV's,stereos, Flat screens, DVD players, etc. I have over 20 years experience and I am the cheapest in th USA for repairs. I am the cheapest cause I'm tired of seeing people getting ripped off and charged way too much. I offer allot of services to, like 90 day warranties, new birth certificates for car amps or one for an amp that never came with ne, no bench fee. So if anyone needs repairs you can contact me through here or at 727-247-5779. My name is Mark and my business name is Mark's Car Audio & Amp Repair. I do allot of repairs from this site. Thank you. I hope this helps.
Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/mark_b53a7494531bf96d
My amp power light didnt go on when i hooked it up what could it be
No,your amplifier probably has damaged power supply transistors as a result of improper power connections,contact eric @ Capital Audio & Electronics repair 850-339-1130 in Tallahassee,Fl-we repair all namebrands & all models
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