amp going into protect mode
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=124378
Printed Date: May 02, 2024 at 4:12 AM
Topic: amp going into protect mode
Posted By: fosgate24360
Subject: amp going into protect mode
Date Posted: November 10, 2010 at 4:06 PM
hey all, problem just occured today. for some reason my fosgate 1500bd amp keeps going into protect mode like 5 secs. after the radio is turned on. then once this happens, i can hear strange screeching noises through my 12" subs(oh they are fosgate power hx2,dual 2 ohm..both wired to amp 2 ohm). ill just jot down here what all i have and the wiring. from battery under the hood(yellow optima),using 0/1 gauge power wire, goes to a battery isolator then back to the rear cargo area of my 99 durango to the 2nd(fosgate deep cycle)battery. then from the fosgate battery to a anl fuse dist. block, then to the fosgate 1500bd(using 2 gauge power wire. on the ground side...under hood i grounded 8" 0/1 gauge wire from the yellow optima to the chasis. in the cargo area, using 0/1 gauge, from chasis bolt to to ground on 2nd battery. then from 2nd battery(o/1 gauge) to a dist. block, then to 1500(2 gauge). also upgraded the alternator to 300 amp and also changed those wires to 0/1 gauge. my fosgate 550x works just fine with no such problems. hope this isnt all confusing and someone can give me some pointers on whats wrong here.
Replies:
Posted By: fosgate24360
Date Posted: November 10, 2010 at 4:09 PM
ohi forgot to included i have a 200 amp circuit breaker under hood(inline power after the battery isolator)....and then power wire going to rear cargo area....if that makes any difference.
Posted By: i am an idiot
Date Posted: November 10, 2010 at 4:35 PM
Disconnect the speaker wires and the RCA jacks from the amp. Does it still go into protect?
Posted By: tomsniper
Date Posted: November 10, 2010 at 7:16 PM
for me sounds like a door speaker wire touching the metal sheet.
Posted By: fosgate24360
Date Posted: November 10, 2010 at 7:48 PM
still goes in protect mode when rca's and speaker wires unhooked
Posted By: i am an idiot
Date Posted: November 10, 2010 at 8:22 PM
Your amp is broken
Posted By: fosgate24360
Date Posted: November 10, 2010 at 8:53 PM
i did notice the amp does make like a clicking noise when this happens. this is actually the 2nd time around for this. after like 2 days the1st time, it went away up until now.
Posted By: fosgate24360
Date Posted: November 11, 2010 at 4:45 PM
hmmm, funny thing is, i got in this morning and as of now, it is all working the way it was. i dont get it
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