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    temperatures 20 degrees too high

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    • Dennifordundefined
      Denniford
      last edited by

      Hello sorry a newbie here, got duet wifi on ender 3. Mostly seems fine except the temperatures thermistors are reading about 20 degrees C higher than they actually are, please advise how to calibrate this, thank you

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      • JoergS5undefined
        JoergS5
        last edited by JoergS5

        To help, it's necessary to know:

        • which firmware version is used
        • which are the config.g settings
        • which termistor type is used
        • how did you measure the real temperature/why do you think it's wrong
        • is it the hotend or heatbed thermistor

        For intial help there is a wiki page: https://duet3d.dozuki.com/Wiki/Connecting_thermistors_or_PT1000_temperature_sensors

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        • Dennifordundefined
          Denniford
          last edited by

          That link probably has the instructions i need. It is obvious because at rest in a 20 degree room it is showing 40 on both sensors, and increasing bed temperature to 50 barely warms the plate. Will go thru the instructions and respond if need help. thank you.

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          • dc42undefined
            dc42 administrators
            last edited by

            Most likely you have an incorrect R parameter in the M305 or M308 commands in config.g. Simplest is to remove the R parameter completely, because the firmware knows the correct value for your Duet.

            Duet WiFi hardware designer and firmware engineer
            Please do not ask me for Duet support via PM or email, use the forum
            http://www.escher3d.com, https://miscsolutions.wordpress.com

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