What is Service Factor?
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Service Factor(SF) is a multiplier that when multiplied by the horsepower of the motor indicates the total permissible horsepower loading that may be carried when the motor is operating at rated voltage and frequency. The most important thing to remember when replacing a motor is that the replacement motor's horsepower times its service factor must be equal to or greater than the original motor's horsepower times its service factor. The Service Factor rating can be found on the motor label. See Step 4 of our How to Read a Pool Motor Label guide.
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Why do I need to purchase a new shaft seal?
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We strongly recommend replacing the shaft seal. The purpose of a shaft seal is to prevent water from running down the shaft of the motor and into the motor housing. Water will damage the bearings and cause the motor to fail. A new shaft seal should be installed whenever a motor is replaced. The motor manufacturer can deny the warranty if the motor fails to due to water damage from a faulty shaft seal. To find your shaft seal you will need to visit our Pool Pump Parts Page or the Spa Pump Parts Page and select your make and model.
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Why should I purchase a Tune Up Kit?
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A Tune Up Kit includes all of the essential replacement seals and gaskets for the pump. The seals and gaskets should be replaced when installing a new motor on your pump. New seals will prevent the pump from leaking water or losing the prime. A Tune Up Kit will protect your motor and ensure that the pump is working efficiently.
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I'm trying to replace the motor on my pool pump but all these numbers and abbreviations on the motor label are really confusing me. What do they mean?
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Replacing a pool pump motor is not as difficult as it seems. You can try looking here. If you need help figuring out what the information on your label means. If you are still having difficulty figuring it out you can call us at our toll free number or you can send us a photo of your motor label here.
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I just finished replacing the shaft seal on my booster pump. As soon as I turned the pump on water was leaking from the shaft seal. Is it defective or am I doing something wrong?
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Depending on the model, the installation of a booster pump shaft seal can be slightly different than a pool pump shaft seal. Some booster pump and pool pump shaft seals require that a silicone sealant be used on the outer areas of the metal seat of the shaft seal. The seal will need to be lightly hammered into the body of the pump. You can use a 1 inch PVC coupling or a piece of 1 1/4 inch PVC pipe and a rubber mallet. This procedure will apply to any pool pump or booster pump using a >PS-1000 style shaft seal.
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I need to replace a Century Part O-177452-03. Is this a suitable replacement?
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Hi, yes this is the correct replacement motor for your motor part number 177452. When replacing a pool motor we do suggest a Seal Kit. Could you send us a few photos of your pump so we can suggest the proper seal kit? If so then please take a wide shot of the complete pump to include the pipes going in and out of the pump. To supply photos simply click the reply link below and upload your photos. Once we get those photos we can make the proper recommendation for your seal kit.
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I have WF-28 011774. Will this mount to the rest of the flange? I don't mind the extra hp, but can't find the WF28 2hp motors. Would this work?
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Hello. The Century Motors 2.5 HP Up Rate EE Motor model B2843 is a compatible replacement motor for the WF - 28. The Century Motors 2.0 HP Up rate Motor model B2855 is also a compatible replacement motor for the WF - 28. B2855 It is recommended that the motor shaft seal, seal plate gasket, and diffuser o-ring be replaced concurrent with the new motor. The GOKIT32 contains the necessary parts to complete this project. GOKIT32
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I need to replace an AO Smith pump (photo) and this one looked most similar. Can you verify if this is correct or redirect me to the right replacement part? I of course also need the gaskets. Thanks.
Hello Erwin. The A. O. Smith/ Century Motors part number 0-196159-06 is a Two Speed 2.0 HP Full Rate motor. The Century 2.0 HP Square Flange 56Y Dual Speed Full Rate Motor - B2984 is the compatible replacement motor. The Century 2.0 HP Square Flange 56Y Full Rate EE Motor - B2843 is a compatible Single Speed replacement motor. The motor shaft seal, gaskets, and o-rings are specific to the manufacturer/model of the pump and not the motor. Please provide pump manufacturer/model information and a recommendation can be made. This information is typically found on the pump body (wet end). If this information is not available, please provide several pump photos.
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