SKR 1.3 bad mosfet hotend E0 stuck on when powered on, 3D printer super dangerous, possible fire.

4 years ago
10

The hotend Mosfet on my SKR 1.3 went bad keeping the circuit alive at all times. When I would power on the printer the hotend would go to max temp and not turn off. A few simple test proved my theory. I was able to use my secondary hotend connector that had a good mosfet as my primary. You can change it in Marlin. You just need to swap the pins in the pins_BTT_SKR.h file. My E1 hotend is not my E0. This kind of stuff makes me nervous. If I wouldn't have noticed the hotend would going to max power until it failed of meltdown.

SKR Board
https://www.amazon.com/gp/product/B07VR975J5/ref=as_li_tl?ie=UTF8&tag=fintechcomm0f-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B07VR975J5&linkId=f9dfe6d5613f91e179b5aac78e708922

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