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Solved Temp shows over 600

Discussion in 'Troubleshooting' started by Drakeh, Jul 27, 2016.

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  1. Drakeh

    Drakeh New Member

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    So my E3D V6 hotend recently broke so I had to order a new one. They started using a new thermistor cartridge so I hooked everything up to my printer but the temp now shows it at around 687 degrees. I'm using Simplify3D on windows 10 currently. I'm not sure if this is a matter of me soldering the wires backwards or what but I'm not sure what I need to do to correct this issue. Any help you can provide would be awesome!
     
    #1 Drakeh, Jul 27, 2016
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    That is a bad thermistor or (more likely) bad wiring to it.
    If you have a multimeter, with the power off and USB unplugged, read resistance from the RAMPS back to the thermistor on the wiring for the thermistor (with it unplugged from the RAMPS of course). See what you get. Should be really close to 100kohms.
     
    #2 mark tomlinson, Jul 28, 2016
  3. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    The thermistor is not polarity sensitive so you can't get the wires backwards, but you can have a bad solder joint or shorted wires. The little plastic sleeves that must go on the thermistor leads are there to prevent them shorting together.
     
    #3 mark tomlinson, Jul 28, 2016
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