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Blown caps?

Discussion in 'Troubleshooting and Repair' started by Gonzo, Sep 18, 2012.

  1. Gonzo

    Gonzo

    2
    0
    Sep 18, 2012
    Hello everybody,

    I have a faulty induction cooktop: when a certain plate is turned on, it causes a short (the fuse blows). I don't have much experience with power electronics in particular, but I still felt brave enough to screw it open and to start looking for blew up components...

    I found two capacitors that looked suspicious to me: it seems stuff has come out of them and I can see some 'dirt' on neighbouring components. But since I don't really work much with power electronics, I am not sure if this indeed looks bad or if this stuff can also be some kind of casting resin or something.

    It is quite some work to remove the PCB to desolder the components and to measure the caps. I would appreciate any advice.
     

    Attached Files:

  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,174
    2,689
    Jan 21, 2010
    The second image looks suspicious.

    I expect that some of the stuff you see there is deliberately placed there to stop things vibrating
     
  3. Gonzo

    Gonzo

    2
    0
    Sep 18, 2012
    Thabks for the reply.
    I did some more unscrewing and i found tue same cap at anothet plate of the cooking top without all the stuff.

    Im quute confident now that the stuff is indeed electrolyte and that the caps need replacement. I will keep you updated.
     
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