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  1. #1
    3D Printer Noob
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    Mar 2022
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    CR 10 bed not heating.

    I checked the cables connecting the control box to the bed with a multimeter and they're fine. If I move the control box around the heating sometimes turns on again. I checked the voltage coming out of the MOSFET and its only 8 volts, is this normal?


  2. #2
    Administrator bolsoncerrado's Avatar
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    Nov 2014
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    Sounds like damaged wire/s or connection to the heatbed (loose soldering point(s))?

  3. #3
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    Quote Originally Posted by bolsoncerrado View Post
    Sounds like damaged wire/s or connection to the heatbed (loose soldering point(s))?
    I also think so.

    - - - - - - - - - -

    If it's an original CR-10/CR-10S, take the connector for the hot end and measure the resistance across pins 3 and 4 (thermistor). You should get somewhere in the region of 100K ohms, higher for a lower temperature and lower for a higher temperature. Look up an output table for a 100K thermistor but I suspect you have a short.


 

 

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