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  1. #1

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    cpp2 not heating

    Good news - I just got a second hand Jobo cpp2, bad news - it doesn't heat up. I've had a look at the thermal cut out button and it seems to be rusted in place, it won't budge to reset so I'm guessing the whole switch/reset unit is done for.

    Has anyone got any idea what I can do, do Jobo still do servicing or parts for the cpp2 (as they still make them). Alternatively, is this something that could be replaced by a third party item by someone who knew what they were doing or by-passed in some way?
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  2. #2
    hal9000's Avatar
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    Hi, if you want to send the unit to Germany you should contact Klaus Dieter Seynsche, he does the repair work for Jobo / Germany and is very competent.

  3. #3

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    Did you have the pump going when you tried out the heater? It won't heat unless the pump is on.

  4. #4

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    Thanks for the link hal9000, good to know someone might be able to fix it if I can't get anywhere.

    Yes bdial - I filled it up and had the pump running, I've just found out there's a fuse on the circuit board for the heating system so I'll check that out
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  5. #5

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    humm, fuses look fine, unfortunately.
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  6. #6
    Pastiche's Avatar
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    Reviving this thread as I've the same problem .. . .

    Wonder if anyone else has had any luck in troubleshooting their Jobo CPP2 Processors . .. anyone have a lead on a repair manual ? (long shot, I know)

  7. #7

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    Pastiche, when I emailed Jobo service about my ATL heater they sent me a service manual with the schematics included. So it's probably worth trying them.

    Also, when I thought the thermal cutout in my ATL was broken (before I saw the button... duh!) I was looking around for third-party objects that could be swapped in and I found heater thermostats w/ capillary probes (ebay Australia link):

    That thermostat will cut back in automatically when the temperature goes under the 80C cutout limit, so it's probably not as good a replacement as an actual thermal cutout. But it's quite cheap.

  8. #8
    Pastiche's Avatar
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    Thank you angusgr!

    I'll give them a whirl . .

  9. #9
    arigram's Avatar
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    I had the same problem but Her Klaus fixed it for me for about 170 euros including the shipping back.
    http://www.apug.org/forums/forum43/5...lfunction.html
    aristotelis grammatikakis
    www.arigram.gr
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