There are no field serviceable components on the printed circuit board.
If a fault condition is determined the complete assembly must be changed.

Be sure to inspect the run capacitor to identify that it is a standard 10µ used on the K-55 and XLP2000 motors. The XLP 21000 motor uses a 11µ capacitor.

If a 9µ capacitor is found the PCB must be replaced by the same type.