SKR 2 when power is applied to connector HB (J23 - BED) there is voltage

bigtreetech / SKR-2

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SKR 2 when power is applied to connector HB (J23 - BED) there is voltage #179

Open serv2t opened 6 months ago

serv2t commented 6 months ago

The board is new SKR 2 - STM32F429. When power is applied, voltage is present at connector HB (J23 - BED) and the LED lights up. The table immediately starts to heat up and continues to heat up until you turn off the power to the board.

Replacing the firmware does not help. What could it be?

radek8 commented 5 months ago

There is a positive power supply permanently on the BED connector. The negative pole is switched. If the bed constantly heats up, the Mosfet transistor will be faulty. You can try to replace it, or claim the SKR2 to the dealer.