On an Ender 3, the X, Y and extruder are not moving when using the prepare menu to move them. If I change the motherboard port for Y to the Z port, the Y moves fine, same goes for the other axis that are not working in their respective ports - so it's not the motor or the cable. What else could be wrong? I find it unlikely that 2/3 axis and extruder are all stopped working at the same time.
I have tried "auto home" but before anything moves it says "Homing failed PRINTER HALTED Please reset". The y axis seems to have a light humming noise to it, but no movement at all.
Seems like all of the stop switches are being ignored. When I "Home Z" with any stop switch plugged into the Z-stop, it just continues along even when i trigger the stop manually. This eventually means it hits the end of the axis and just keeps hitting the end with a nasty vibrating sound.
It was working for about 6 months before all this and my old power supply popped, replaced the power supply and all this started.
I have tried a pre-built marlin 1.1.9 firmware, then tried a self-built marlin 1.1.9 firmware that I followed a guide to do specifically for the Ender 3 and then flashed TH3D U1.R2.15 unified firmware using their instructions and still the problem persists through all firmwares