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My amp keeps blowing fuses

Discussion in 'Amps and Cabs [BG]' started by wilks, Nov 25, 2002.

  1. Today, for the first time, my gallien krueger 800RB blew a fuse. I went to the electrical store and purchased a new one of the same amps but when i tried it the amp just made a loud humming noise before the fuse blowing again.
    I then repeated this process and came to the realisation that something isn't right.

    Can anyone please tell me whats going on?
  2. thelastofus

    thelastofus Guest

    Jul 3, 2002
    Bakersfield, Ca
    take your amp to a tech and get it check out. mine did the same thing but mine's a tube amp and i'm not aware of blowing transformers or resistors on solid state amps but get it check out regardless because chances are you're gonna have to get it fixed by one unless it's under warantee
  3. The amp is drawing more current than the fuse is setup to allow. When everything is ok the amp won't draw too much. Something is wrong with the amp. Don't keep putting more fusses into it hoping it will heal itself, it won't and you may end up doing more dammage. Take it to a tech.
  4. And just in case you were thinking about it DO NOT put a higher rated fuse in the amp.
  5. Blown output transistor probably. If you keep putting in fuses and trying it, you'll fry your speakers too, if you already haven't.

    Take it to a tech.

  6. Velkov


    Jan 17, 2001
    Lansdowne, Ontario
    Sounds like a blown output transistor. It is short-circuiting. Getting new fuses and blowing them up may damage other things. Go to a tech.

    Haha, throbinut already said all this. :)
  7. P. Aaron

    P. Aaron Supporting Member

    I used to have every Charles Bukowski book. They were either stolen from me, or I loaned it and it was never returned.
    My Bukowski fan friends have had this same thing happen.

    Has it ever happened to you?
  8. Actually, most of my Buk books are loaners from friends that I never gave back. :D

  9. Thanks for all the help. There aren't any places that specialise in fixing amps around here as I live in a very small town.
    Do you think it would be okay to take it to a regular repairman and ask him to check it out?
  10. Probably so. Most of this stuff is the same, so he'll probably know what's going on. The catch will be that he may not have the right part to repair it, and may just use something close that will work. I'd rather use the exact same part. Tell him to get you a parts list of what he needs if he doesn't have exact replacements and you'll order the spare parts from the manufacturer to keep the amp in its original form.

    Another option, and probably better, is to find a musical instrument amp repair place in the nearest large city, talk to them on the phone to make sure they'll be able to work on your brand and type of amp, and then ship it to them for repair. That way you'll know the guy inside your amp knows what he's working on and will fix it right. More expensive, but better results.

  11. BTODD444


    Jul 22, 2013
    I had the same problem with my Mesa, but come to find out I was using too small of a fuse. I was using a 5A, but it called for a 10A, however I thought I would be super safe and use a 20A, BIG MISTAKE! It was a spectacular smoke show! Please save your self a lot of trouble and money and use the size it calls for.
  12. BTODD444


    Jul 22, 2013
    Wow just realized this post is over 10 years old, my bad.
  13. Hi.


    At least You searched, I guess.

  14. Arnie


    May 14, 2005
    Kingston, NY
    I was going to suggest aluminum foil :)

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