blowing fuses

Posted by: Overlord

blowing fuses - 08/05/2003 18:27

I installed my empeg today, but I keep blowing fuses. I have 4-gauge wire from the battery to a distribution block. The output of the distribution box has two 8-gauge connections. I'm currently only using 1 of the eight gauge connections to my fosgate amp. I have an 8-gauge ground. I keep blowing fuses at the distro box and at the battery. What's up? Any ideas?
Posted by: matthew_k

Re: blowing fuses - 08/05/2003 18:48

Do the fuses blow immediatly when you put them in, or does the system run for a bit and then kick off?

If the fuses blow right away, then you've either got a bad amp, or a wiring problem where the positive cable is somehow contacting ground. If the new fuses work for a while, then stop working, I'd try a different amp and see if that helped.

Matthew
Posted by: Overlord

Re: blowing fuses - 08/05/2003 19:36

They blow immediately. I pulled my 4-gauge power wire out to check for exposed wire, didn't find any. The last time I connected the power up to the battery, I got an arch across the positive post. Could a short in the RCA or speaker wire cause the blown fuses?
Posted by: matthew_k

Re: blowing fuses - 08/05/2003 21:40

I don't think the arc means much, as I get a spark every time I disconnect my amp. I don't know of any good way around it, actually. Does anyone else know? Come to think of it, I know i've been told (and subsequently disregarded) that you're supposed to take off the negative battery cable, will that work with sparking?

If they blow at the battery and the distribution block, then it's probably something after the distribution block. How are the connections to the amp? There isn't any chance the positve cable is touching the ground or case of the amp? Be sure to actually figure out what the problem is, as the fuses are there mainly to prevent electrical fires, not save your amps.

Matthew
Posted by: tfabris

Re: blowing fuses - 08/05/2003 22:00

Be sure to actually figure out what the problem is, as the fuses are there mainly to prevent electrical fires, not save your amps.
Very true. This can't be overemphasized.

If the fuses are blowing, it means there is definitely something wrong in the wiring, something that would melt wires or start fires if it weren't for the fuse.

Read this page carefully. Especially the "note on blown fuses" at the bottom (but also read the rest of the page too).