How To Choose The Right Replacement Pool Pump Motor

Written by:  Danny Rhodehamel
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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.

Tips & Warnings

Step by Step

Step 1

The easiest way to find out your motor information is on the motor label itself. It will usually list the model or category number. The motor pictured to the left is an AO Smith UST1152 (C48L2N134C1).

Step 2

If you have an AO Smith motor and a part number similar to the UST1152 (C48L2N134C1) is visible, you can enter it into the search by keyword or part number on our website and it will bring you directly to the motor page.

Step 3

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).

Step 4

If the model or category number is not legible on the motor label, you will need the information on the pool pump (pump housing) to find the right motor. The label will likely include the pump model and the serial number. Unfortunately only the manufacturer has access to the serial number.

Step 5

If you insert the pump model (SP2810X152) in the search box and click go, it should return with a result. Once on the item page, click on the parts tab, then on the replacement parts link.

Step 6

Once on the parts page, you should be able to locate your replacement motor. Once again, you will want to compare and the specs to what is listed on your current motor label (if legible).

Step 7

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.

Step 8

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.

Step 9

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.

Step 10

If all of the above fails, I will ask for a picture of the pump housing and the motor label.

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Please Note:

Inyo Pool Products is not responsible for any injury or damaged equipment
while using our guides. Using our guides is doing so at your own risk.
These guides are suggested use of your pool or spa equipment and may vary
depending on which product you are using.