This guide shows you how to replace a damaged Start Switch on a typical single speed A.O. Smith motor. This Start Switch is only used with motors that have a start circuitry to boost starting torque. See our overview guide on "How To Replace AO Smith Motor Parts - Overview" to see how the Start Switch operates with the other electrical components. Although this guide is written for an A.O Smith single speed, many of the steps are applicable to other models and speeds.
ATTACH NEW SWITCH - Attach the Start Switch with the single screw. If your motor is produced before November 2001, this Start Switch may have to be adjusted for optimum operation. See our guide on "How To Adjust the V-Switch on a Hayward Super Pump Motor". After November 2001, the A.O Smith motors were produced with a no-adjust Switch.