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Thread: Ants! (and some internal 5800 photos)

  1. #1
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    Ants! (and some internal 5800 photos)

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    pulled the reservoir off to top it up, and it was full of nesting ants! (in the dry half of it anyway)... :o

    cleaned it out, but there were still a few crawling aroud the machine. Pulled off the back cover and found a few more. But still some were crawling out of gaps.

    Eventually I had to pull off the power supply cover (a small straight blade works in those security Torx screws), and found another nest! Some vacuuming and a few hours away and they eventually decided to leave...

    Anyway, for interest I snapped a few photos inside the Sunbeam (sans ants though)...

    Heres the underside:


  2. #2
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    Re: Ants! (and some internal 5800 photos)

    in the back.


  3. #3
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    more pics

    R1 and ZD2 seem to be getting the board very hot!


  4. #4
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    Re: Ants! (and some internal 5800 photos)

    The 5800 is the one with the buttons on the front, right?

    Im told that theres a screw in that brain box, that controls the temp ... Im also told that if you turn it up full, it actually brews espresso closer to normal brew temps!

  5. #5
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    Re: Ants! (and some internal 5800 photos)

    yes, the 5800 is the one with buttons and a programmable doser.

    The blue thingy (technical term) on the PCB looks adjustable with the appropriate tool... (see pic). The temperature sensor in the thermoblock looks like a thermistor (white pair of wires in above photos), not just a thermostat, so I guess there would have to be some form of calibration on the electronics.

    might have to borrow a thermocouple from work and go play...


  6. #6
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    Re: Ants! (and some internal 5800 photos)

    have fun! and let us know the results!

    p.s. an aspiring WBC (not David Makin ... the guy Im talking about lost to a girl, wasnt too happy about it, and moved to Japan to open a concept store with Paul Bassett) used to own one of these, and he told me about the adjustment.

  7. #7
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    Re: Ants! (and some internal 5800 photos)

    Just what I need! another variable to play with...

  8. #8
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    Re: Ants! (and some internal 5800 photos)

    thats coffee for ya!

  9. #9
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    Re: more pics

    Quote Originally Posted by Matt King link=1147648838/0#2 date=1147648982
    R1 and ZD2 seem to be getting the board very hot!
    Hi Matt,

    This arrangement is commonly found where a simple Voltage Regulator is required or Voltage Clipping. It is quite usual for the resistor to get pretty warm (as in HOT) and because of this, the resistors are usually mounted up off the board to prevent burning the PCB. You could either try desoldering and replacing with an identical resistor with longer legs or trying to slide some Mica Sheet between the resistor and the PCB... the Mica option is probably the easiest :),

    Cheers,
    Mal.

  10. #10
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    Re: Ants! (and some internal 5800 photos)

    The hottest part of the board seems to be at the junction of the two components.

    Pulling the board out seems like a bit more work than I can be bothered with (rather relax and drink a coffee...). Might see if theres clearance underneath if I get the back panel off again...

  11. #11
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    Re: Ants! (and some internal 5800 photos)

    Just keep an eye on the machine for further ant infestation. Once ants build a nest the smell attracts other ants so they keep wanting to come back. I had to throw away an expensive kettle as they kept inviting themselves back. Be aware they can burn out circuit boards and cause fires.

  12. #12
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    Re: Ants! (and some internal 5800 photos)

    Quote Originally Posted by Matt King link=1147648838/0#9 date=1147732618
    The hottest part of the board seems to be at the junction of the two components.

    Pulling the board out seems like a bit more work than I can be bothered with (rather relax and drink a coffee...). Might see if theres clearance underneath if I get the back panel off again...
    Hmmm,

    Could be a suspect connection then Matt :(.... If so, it will ultimately fail if the Zener Diode itself doesnt fail first from excessive heat. Still might be worth checking out, even if its just to resolder the joint itself, easy to do and the elimination of headaches further on down the track as a bonus :),

    Mal.

  13. #13
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    Re: Ants! (and some internal 5800 photos)

    Behmor Brazen - $249 - Free Freight
    Ive emailed Sunbeam about it. Will see what their response is before I electrocute myself (Im a mechie, not a tronic engineer). The back of the board isnt the easiest thing to access...

    re the ants, I dropped in some peppermint oil (they hate it) - thought that would be better than spraying poisons inside my beverage device...



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