At one point or another, you will need to replace your pool pump motor. Replacing it with an exact match is important otherwise the motor may burn out prematurely. There are a few things to look for when ordering a replacement motor. This guide will help you understand the world of swimming pool pump motors a little better.
Once you're on the motor page, you will find the motor specs listed. You will want to compare and the specs to what is listed on your current motor label. The most important information you will need are the horse power (HP), amps, voltage, service factor (SF), hertz (HZ), frame (FR) and revolution per minute (RPM).
When I receive a call from a customer asking for a replacement motor, there are a few key questions I will ask: What is the manufacturer and model of the pool pump (not the motor)?, What is the horsepower of the motor?, What is the frame of the motor?, What is the voltage?, What is the service factor?, What is the RPM?, and more general information about the pump (color, shape etc.) if necessary. If all else fails, I will ask for a photo of the pool pump.
The reason I ask these questions is because this key information will lead me to a replacement motor. Let's look at the questions: What is the manufacturer and model of the pool pump (not the motor)? If the customer tells me Pentair, then I know that I will likely be looking for a square flange motor (56Y or 48Y frame) because Pentair/Sta-Rite and Jandy (sometimes) use these types of motors for their pumps. The only difference between the 56Y and 48Y is the circumfrence (width) of the motor. They will both mount to the seal plate but the 48Y will need an optional spacer (that comes with the motor) to sit on to make up for the difference in size.
If it's a Hayward pump, I will likely be looking for a round flange (56J frame) motor. Jandy also uses 56J frame motors on some of their pump models. This isn't always the case but the questions above will narrow down my search. Once I figure out the type of motor the customer needs, I then try to match up the pump model number or motor specs.