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Posted · Temp error-help

I've had my ultimaker2 about 1 month printed about 2-3 rolls of pla. Recently having trouble with temp error messages with aborted prints.

I've been told by "support" to take the heated bed apart and check the wires as well as check some resistances. I think it is all is ok :

3.7 omhs resistance between screws 1 and 2.

108 omhs between screws 3 and 4

108 ohm on either side of the small rectangular area (resistor?)

I've also taken the board off the bottom and checked the connections there. I reassembled it and it printed for a little while with the same error.

Please help...what's next?

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    Posted · Temp error-help

    Based on this:

    http://www.fablab-regensburg.de/wp-content/uploads/2014/04/Ultimaker-2-Nozzle.pdf

    Should I be taking my extender apart? This sounds like it could be my problem. I am having clogging issues as well but I didn't think they could be related. I believe Occam's razor may apply.

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    Posted · Temp error-help

    This is not related to the print head. It's the print *bed*.

    There is a 4 pin connector soldered to the bed. Usually the problem is in one of 3 places:

    1) On the 4 pin connector one of the screws is loose or a wire isn't in properly.

    2) The 4 pin connector has a bad solder joint - this is impossible to see so I recommend reheating all 4.

    3) Underneath the UM2, remove the larger cover and check the wires on that end also.

    The 108 ohms is the PT100 part which you can google (Pt stands for platinum). 100 implies 100 ohms at 25C. 108 ohms implies typical room temperature. It looks like a resistor but it's the temperature sensor.

    The problem is with the wiring between the PCB under the UM2 and that part. Like I said 90% of the time it's at one of those 3 places above. I'm guessing #2.

     

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    Posted · Temp error-help

    I am having clogging issues as well but I didn't think they could be related.

     

    Not related. The print bed can be at any temperature and it won't affect clogging or underextrusion issues. We should tackle that on another thread. Many people have underextrusion issues and there are many possible causes.

     

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    Posted · Temp error-help

    put a new bed on a works like a charm. Yeah um2.

     

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