Capacitors by design store energy and in pool motors this energy can sometimes cause dangerous shock even after you have turned off the power to the motor. Before you work on the electrical side of a motor, you should ensure that this energy is dissipated. This guide shows you how to safely short out the residual energy in a pool motor capacitor after the pump power has been turned off. Note: Some motors have two capacitors, a run capacitor and a start capacitor. To be safe, you should short out both capacitors before working on the electrical circuits of the motor.