This is on a Makino RMC 55 OM

Spindle motor was having trouble starting in a certain orientation. I marked the spindle with a pen so I could try starting it in various positions. I found the spot it wouldn't start up from. When it was trying to start I quickly spun the spindle by hand (that has worked in the past) and there was a loud pop in the cabinet. After rebooting several times everything seems like it is working except when I try to start the spindle it doesn't start. What it does is peg the load meter for a couple seconds and then something pops in the cabinet, and then nothing works until rebooting.
There are no alarms on the screen but the readout on the spindle drive board displays 02 after pop. I tested the leads to the motor and windings are all ok. Any ideas?