Pool & Spa pump motors need to be replaced sometimes. This could be due to the bearings wearing out or the motor is making a tremendous noise, or the motor won't turn on because it is burned out or old. The biggest mistake made is improperly wiring a motor. If the motor runs slow then trips out, it is incorrectly wired. Please carefully read the motor name plate regarding the connections.115/230 volts motors are shipped from the factory connected for 230 volts. A motor connected for 115 volts that has 230 volts applied will burn up immediately. A motor connected for 230 volts that has 115 volts applied will run slow and trip out. If the wires moved on the connection board are not placed on the proper terminals, the result will be a slow running motor that overheats and trips out. These motors have automatic overload protection, which means the motor will not run again until the motor cools down. Before you call us and say you have a bad motor, please recheck the connection to insure you have the motor properly wired for the incoming voltage. These are brand new motors that have been test run at the factory, the chances of you getting a bad motor are vary rare. All of our pool, spa, and pool sweep motors are new and have full manufacturer warranties.