Hotbed Cable Management


recently, I had a problem with my Hotbed not heating up properly.
So i opened my JGAurora A5 and found the hotbed connecter being burnt.
I bought some new wires, because i wanted to use the other 2 connecters of the hotbed,
instead of just the 4 ones, which were innately connected.
Now im not sure, how to connect the powerwires, coming from my Mosfet,
with the 2 other pads on the Hotbed.

So is there a polarity, i have to take notice of, or can i just connect them with my powercables?
Do I have to remove the 4 Pin Plug of my hotbed, or can i Just solder the other 4 wires (Power and Thermistor) on to the Pins?

Help is appreciated!


  • Samuel PinchesSamuel Pinches Posts: 2,588Administrator
    edited September 2019
    Welcome @Levi Döner ,
    the heatbed is not polarised. However, if you are soldering the wires direct to the heat bed, then you don’t need any additional wires. The damage is because the connector was not sufficient, but the wires are ok.
    Thanked by 1Levi Döner
    Post edited by Samuel Pinches on
  • Levi DönerLevi Döner Posts: 3Member
    Hey Samuel, thank you for your awnser!

    So it is enough, when I solder the wires to the Pins of the connector on the heatbed?
    Because I don't have a soldering iron hot enough, to desolder the connector from the Heatbed.

    And in your oppinion it is better, to not solder the other 2 pads of the Heatbed?

  • Samuel PinchesSamuel Pinches Posts: 2,588Administrator
    If you have a 4 pin heat bed, then I am not sure what the other 2 pads do. Sometimes these beds are designed with 2 pads for 12V operation, and 2 pads for 24V operation. I think it is better to use the 2 original pads (+2 pads for thermistor, of course).

    A good quality soldering iron is a good investment ;-)
    Thanked by 1Levi Döner
  • Levi DönerLevi Döner Posts: 3Member
    Alright, this sounds good :)

    I will try to remove the connector with a better soldering iron.
    Thank you very much for your help Samuel!

    Thanked by 1Samuel Pinches
  • rhaub101rhaub101 Posts: 78🌟 Super Member 🌟
    I soldered mine right to the connector pins.

    Thanked by 1Samuel Pinches
Sign In or Register to comment.