• Locate the pump/motor in a clean, dust-free area. Most pool and jet pump motors are open drip proof designs which circulate external air for cooling. Air contaminants such as sweeping dust and grass clippings may clog internal air passages leading to overheating. • Protect from excess moisture. Don't hose down the area around the motor when it is running. Elevate the pump/motor if it is in an area that is prone to flooding. • If an external motor cover is used, be certain it does not trap moisture or allow cooling air to recirculate. • Don't store or use chemicals close to the motor. • A running motor that is too hot to touch is not necessarily overloaded. Class B motors have a maximum operating temperature of 130° centigrade (266° F). • If pool or jet pump motors are removed from service at the end of a season, do not wrap them tightly in plastic. Temperature changes may cause condensation with detrimental effects. It is best to store them in a dry, heated space. If left outside, they should be covered to protect from the elements. • Thinner air at higher altitudes has less cooling ability. As a rule of thumb, the next higher horsepower rating may be used at altitudes above 3300 feet to compensate. • Most pool and spa pump motors have ball bearings on both ends of the shaft.The bearings do not have a provision for regreasing. • If the pump is run "dry", meaning it is pumping little or no water, heat can build up from friction between the pump impeller and water in the pump housing. Excessive heat can be transferred to the motor shaft and bearing, causing the bearing to fail. • Periodically check for signs of a pump seal leak. If water drips to the surface between the pump and motor, or if there is evidence of corrosion, have a service professinal evaluate the situation. A leaking seal will usually lead to motor bearing failure. Use of a mirror and flashlight is the easiest way to view the area between the motor and pump. • If the motor/pump starts making noises that are different from normal, it may be an early indication of a bearing going bad. Contact a service professional. • If the proper size wire is used, a motor will operate just as efficiently on 115 volts as 230 volts. Only qualified service personnel should make electrical connections. If a motor is internally connected for 115 volts, and 230 volts are applied, it may short instantly and ruin the motor. • A new pump seal must be installed any time the seal is removed. Even if the existing seal looks good, it may not align properly if reused. This can lead to a leak and a ruined motor. • A.O. Smith only makes motors, not pumps. Our products are sold and serviced by pool professionals and retail outlets. Don't overlook the service and support issues when purchasing a new motor.