My heated bed starting cutting out and so I got the fan from Robo3d to cool the board. I got it plugged in and it worked fine but when I went to print something my x-axis wouldn't move. It made a weird sound like it was trying to move but didn't actually do anything. I unplugged the fan but it still wouldn't work. I switched the x and y motor cables to see if the motor had gone out but then the x axis worked and the y axis was doing what the x axis was doing so I know the motors are fine. I reloaded the firmware but it didn't do anything. Any suggestions as to what the problem is.