SKR 1.3 bad mosfet hotend E0 stuck on when powered on, 3D printer super dangerous, possible fire.
4 years ago
8
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.
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