There could be so many things that cause this to happen. The final transistors in the unit handle a lot of current. When they fail from heat or other causes, the fuse burns out. There is nothing that you can do unless you know how to perform electronic repairs and troubleshooting. Unless you want to send it in to a shop for repairs.
SOURCE: Beer Spilled on my Power Acoustik PS2-820 Amp
Hi , now that you have the amp apart , just check the underside of the printed circuit board and check for any corrosion ,rub it with a soft brush . then try connecting without speakers . see if it still blows fuse, if it does then there is a likelihood that your mosfets / outputs may have shorted the first time you reconnected it . Good luck
SOURCE: amp blows fuses "immediately"... HELP
for this to cause a problem with amplifiers there is something internally wrong with it. Most of the time the mosfets take a shit from the hot...cold....hot....cold atmosphere its put in by all of us audio people. If it still has warrenty that would be the easiest route to go. Send it in to them and have them fix it for FREE lol!! well sorta. Hope this helps you understand why you are blowing fuses.
SOURCE: amp keeps blowin the two 30amp fuses on the amp.
Make sure that the speaker wires are wired correct at both the amp and the speakers......otherwise it sounds like the typical death of a power acoustik amp (great amps, but prone to a premature death)
I’m happy to assist further over the phone at https://www.6ya.com/expert/robert_aad3edb7dfa380b9
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