I'm at a loss as to why my used 5hp, 3 phase Ingersoll Rand air compressor will not run with the wiring setup shown in the sketch below, which is the way it was supposedly wired by the previous owner. The coil is the correct voltage and tested to make sure it works. The compressor will run if I manually close the contacts. Also I'm sure the low level oil switch and pressure switch are in the closed position. Any suggestions?