FSund

Turns out I had swapped the front fan and auto leveling sensor connectors 🤦‍♂️ The fan works as expected after swapping them around.

We have a UM3 at work that I'm trying to get working. I think I've nailed down one of our issues to the front fan not running. If I heat a print core to 60 degrees via the menu, the fan does not start, and I measure 0 V at the connector on the back of the print head If I plug the front fan into a connector for one of the side fans, the fan spins up when I manually set the fan speed in the menu The front fan spins freely if I blow on it Should I just go ahead and order a new print head board, or is there something else I can try?