need help with amp problem!

[blazinb2000 10+ year member]

Okay I have made a diagram to show the equipment and to help describe my problem. The problem is that today when I started my truck the sub never started playing. I checked the subwoofer amp and it was not on. I made sure all of the wires were hooked up and then thought to check the fuses. Well the fuse is blown in the zx250.2 amp. Not sure why it happened? Setup has been wired up in my truck and working fine for nearly 3 months. It is mounted securely so it didn't move around or hit anything and I don't think any wires touched each other. My question is should I just try and replace the fuse and see if it fixes it or is there something else wrong that will need more than just a replaced fuse? Never had any problems with any of my amps so I am unsure about diagnosing amp problems.

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[CRXBMPN 5,000+ posts]

try to replace the fuse, its cheap and if it works great if not then you know you got bigger fish to fry

 

[audioatg 10+ year member]

Check the coils on the subs just to make sure they are okay. Then check for lose grounds power wires. And what ohm load is the amp running.

 

[blazinb2000 10+ year member]

The amp is running bridged at 4 ohms. The sub is a dual 2 ohm. Even if I replace the fuse and it works fine from now on, I would like to know why the fuse blew in the first place? Another thing I should add is that the component amp (mrp-m220) is still working fine even though they share the same power source and the same remote wire so I don't think it is wiring fault, unless it is between the distrobution block and the sub amp (zx250.2)

 

[blazinb2000 10+ year member]

The amp is running bridged at 4 ohms. The sub is a dual 2 ohm. Even if I replace the fuse and it works fine from now on, I would like to know why the fuse blew in the first place? Another thing I should add is that the component amp (mrp-m220) is still working fine even though they share the same power source and the same remote wire so I don't think it is wiring fault, unless it is between the distrobution block and the sub amp (zx250.2)

Anyone able to answer my question and help me?

 

[audioatg 10+ year member]

Could of been a bad fuse in the first place from factory. Alot of things could of happen. To many amp draw popped the fuse.

 

[blazinb2000 10+ year member]

Update: bought a new 40 amp fuse and replaced the blown one. Turned on the ignition and the amp instantly blew the new fuse and then filled the cab of my truck up with smoke...I believe the amp is toast.

 

[TurdFergueson2 5,000+ posts]

What about the fuse in the distro. Did you troubleshoot that one?

 

[Rashaddd 5,000+ posts]

Sounds like that amp has an internal short, and you probably just damaged it further, open it up and have a look or call a repair center or sell it

 

[blazinb2000 10+ year member]

What about the fuse in the distro. Did you troubleshoot that one?

The disto doesn't have a fuse. It is just a basic 1 4ga input and 4 8ga outputs. Fuse under the hood is still good and my other amp still works fine.

 

[TurdFergueson2 5,000+ posts]

I have never ran power to 2 amps without using a fused distro. I won't say that is the issue I just never ever set mine up that way.

 

[blazinb2000 10+ year member]

I had the same type of wiring setup in multiple different vehicles over the past 3 years with zero problems before. I bought the amp refurbished so it has apparently had problems before...

 

[its_bacon12 10+ year member]

Replace the fuse, re-do the grounds.

I blew an amp last week because of a fault ground. Pissed away $160 for being stupid to not just clean off the ground and redo the wire there.

 

[blazinb2000 10+ year member]

I think this amp is toast and replacing the fuse and finding a new ground would not help it. It filled my cab up with smoke and has a terrible burnt electronic smell, it smoked for a good 15 minutes even after being completely unhooked. I will be sure to double check my ground connections before installing a new amp.

 

[TurdFergueson2 5,000+ posts]

Try using a fused distro this time. One that can take 0ga in and 4 out. A knofused block from knu. Make sure you get a pack of extra fuses to go with it too.