Accidentally wired my amplifier wrong!

Roker · 3rd November 2008, 12:12 PM

Okay I am going to come right out and say it, I am an idiot!!! I was in a hurry and too excited to use the correct precautions, which would have saved my amp.

I accidentally wired the 12v power to my Rockford Fosgate 5005 backwards, meaning I connected the battery + to the amps - and so on. I was just testing the amp before installing it my car and unfortunately I didn't have a fuse in place. Stupid, stupid, I know. It blew two mosfets and I replaced them already, and what a joy that was. I couldn't get them to solder back to the Mehsa board so I built braces to hold them down using the exsiting screws. Everything looks good so I a hooked it up the right way and I even used a 15 amp fuse. However, I still have a problem with the amp. All it does is blow the fuses when I turn the key and power goes to the REM wire. The fuse doesn't blow until the REM power turns on. It will also blow a 20 amp fuse.

What do I need to do now?

theAnonymous1 · 3rd November 2008, 12:29 PM

Quote:

Originally posted by Roker
What do I need to do now?

Have this moved to the car audio forum.

Eva · 3rd November 2008, 08:04 PM

It seems that the polarity reversal blew more components than just these two MOSFET. Check further.

The MEHSA stuff (intended to avoid you from repairing the amplifier) and the lack of a built-in fuse (intended to help you to blow it) make Rockford amplifiers anything but my favourite ones.

3rd November 2008, 12:12 PM	#1
Roker diyAudio Member Join Date: Nov 2008	Accidentally wired my amplifier wrong! Okay I am going to come right out and say it, I am an idiot!!! I was in a hurry and too excited to use the correct precautions, which would have saved my amp. I accidentally wired the 12v power to my Rockford Fosgate 5005 backwards, meaning I connected the battery + to the amps - and so on. I was just testing the amp before installing it my car and unfortunately I didn't have a fuse in place. Stupid, stupid, I know. It blew two mosfets and I replaced them already, and what a joy that was. I couldn't get them to solder back to the Mehsa board so I built braces to hold them down using the exsiting screws. Everything looks good so I a hooked it up the right way and I even used a 15 amp fuse. However, I still have a problem with the amp. All it does is blow the fuses when I turn the key and power goes to the REM wire. The fuse doesn't blow until the REM power turns on. It will also blow a 20 amp fuse. What do I need to do now?

3rd November 2008, 08:04 PM	#3
Eva diyAudio Member Join Date: Oct 2003 Location: Near the sea	It seems that the polarity reversal blew more components than just these two MOSFET. Check further. The MEHSA stuff (intended to avoid you from repairing the amplifier) and the lack of a built-in fuse (intended to help you to blow it) make Rockford amplifiers anything but my favourite ones. __________________ I use to feel like the small child in The Emperor's New Clothes tale

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