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 purchased and received the motor above to replace a very loud motor with the description as follows:.
A.O. Smith, type :cx , Frame: Y56J, HP:1.5, SF 1.0, Volts: 230/115, Code: E,
model: 0-184982-23 Is not installed. Will it fit and work ok?
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Hello Larry - The motor would fit. However, you would need to upgrade the impeller and possibly the diffuser. These parts would depend on the make and model of your pump.
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Is there any advantage to upgrading from a ST 1202 to a ST 1252? And if so, do you have to change the impeller?
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The ST1202 and UST1252 have the same total hp so you would not need to replace the impeller. There is no real advantage in changing the model.
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I am ordering a ST1202 pump, and would like to order a new impeller as well. What is the model number for the appropriate impeller? Is there any way to get them shipped assembled?
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I have a motor that went out and I'm trying to find the correct replacement. Your help would be appreciated. My pool has a Jandy pump model# SHPM2.5
Serial # n08FB3380 HP 2.5. The motor is HP2.5xS.F1.04= Total2.6
Can you point me to the correct motor? Thanks!
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Hello Jennifer, The replacement motor you are looking for is A.O. Smith 2.5 HP, 56Y Frame, Up-Rate Motor (B840, B2840) B840.
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I have a super II Hayward 2 hp pool pump. Motor Model # C48M2N111A3 "smith motor". Sounds like the bearing are going out, can you tell me the replacement motor I would need? This is the 3rd time I have replaced it in 8 years of owning the pool. Thank you
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Hi Gary, This motor (ST1202) will be the correct replacement for the C48M2N111A3. I would also recommend getting the Hayward Super II Pump Tune Up Kit GOKIT2 or GOKIT2SALT.
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Hi
My pump give a load noise, I cleaned it but still has same noise, sometime very load.
I am listing here the model number and looking for the correct motor replacement , to help me lower this nose.
Model: K48M2N111
Volts : 115/230
Amps 19.4/9.7
HZ 60
Ser 19411FM
KW 1.55
RPM 3450
Thermally protected: CET36WX
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I have two ST1202 pumps, both are models K48N2N, HP, 56J, 1.33, etc, except one is 11.2 Amp, and the other is 12.6-11.4 amp.
Question 1: my 11.2A pump is leaking very small of water at the hump on top of the pump, and it shuts off itself every hour or so. Do I need to replace the motor or just a seal somewhere?
Question 2: if I need to replace, would the 12.6-11.4 amp model work?
Thanks
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Hi Josh, Yes, I would recommend that you replace the motor and the seal within the pump and the ST1202 Motor with the Max Load Amps of 12.6-11.4 will work.
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My old AO Smith pool motor burned out model # K48M2N110 at 1.5 HP, can I replace upgrade to the ST1202, 2HP unit? And if so, is this the correct impeller to upgrade to? Sp3021-c
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If your current pump is a Hayward Super 2 then yes, that is the correct impeller to upgrade with the ST1202. That is fine to do that as long as your filter is able to handle the increased flow rate.
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I have a motor that went out and I'm trying to find the correct replacement. Your help would be appreciated. My pool has a Jandy pump model# JHP2.0, Serial # 0834. Can you point me to the correct motor? Your assistance is greatly appreciated.
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Hello Jennifer- The correct replacement motor for your JHP2.0 is the Motor 56j Thrd Full 2 Hp - B836.
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Hi,
I have a Century Centurion 2 hp, 230v motor, The pump is an American Products Co. Model #38298. The motor still runs good but the impeller that is bolted to the motor is making a very loud noise. I would like to get a new motor and impeller/pump. What can I replace that with?
Thanks,
Doug
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Hi, Doug. They are different 2 HP motors available and I was not able to locate an American Products pump using that model number. Please send us pictures of the motor label and of the pump housing so that we can try to identify the replacement motor and pump.
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I have a K48N2N104. I am looking at your site: http://www.inyopools.com/Products/00200017001213.htm?Keywords=k48n2n104 I would like to buy a motor with a bit more power 2.5hp. Do you recommend this? Which model would recommend?
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I currently have a Century ST 1202 Model Num. K48N2N106C1 motor that runs an irrigation pump. I had one that lasted 10 years then the next one lasted 2 years. the one I have now burned the winding's in 3 weeks. Is there a more heavy duty motor I can upgrade to?
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Marty, Based on the specs of the ST1202, the comparable motors will not be as "heavy duty" as what you have now. I would recommend staying with the ST1202.
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I have an AO Smith 2hp model K48N2N104 used with a Hayward housing. It's rated at 230V with a max load of 11.2 V. Is this the best model for replacement?
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This is the direct replacement motor. Some people prefer a dual speed or variable speed but "best" is merely a preference. You can use the dual speed motor model STS1202 and would need a timer being part number T106R or you can use variable speed model ECM16CU. The more you use lower rpm settings then the more energy efficient they become.
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we have a Hayward superpump pool, hot tub and spa model #: K48M2N111 and we are looking for a motor that fits....any recommendations (energy efficient one would be great?)
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I have the Jacuzzi Magnum Force 2MF-S2 Pump - EST1202. Is this the replacement motor for that pump? The only reason I ask is because the Starter Capacitor is in the back cover - my existing (original) does not have the hump on the top of the motor. Also - I believe the EST1202 is 230V - Can I just hook this one up right out of the box, or do I have to re-wire?
Thanks
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Would like to replace an existing AO Smith ST1202 motor with the same new one. Are there any additional parts needed to purchase with this motor, or does it have everything I need to install the new one?
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Hello, the only other thing that is needed is a new shaft seal. If you could advise me of the model of your plastic pump housing, I can tell you which one you will need.
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I have a A.O. Smith model #K48N2N104, looking to get a direct replacement. An suggestions would be greatly appreciated. Picture attached.
This model ST1202 is the direct replacement for your motor model.
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I am looking for a replacement motor for my old Hayward SP2610X15. Is this the model I would need? Thank you in advance
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Hi, Teresa. The UST1152 or PL1152 are the replacement motor options for your model pump/ You will also need the Hayward Super Pump Tune Up Kit - GOKIT3 or GOKIT3SALT.
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can i buy this? i live in califonia.
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Unfortunately, this motor cannot be shipped to California. You could go with this 2.7 HP Variable Speed Replacement Motor or you might want to consider one of these PureLine Variable Speed Pumps all can be shipped to California.
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what seal would you use for a ST1202?
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We are unable to identify the Pool Pump Shaft Seals without the pump model number. Please review the pump model number off of the wet-end, not the motor. This link is very helpful in distinguishing the pump vs. the motor https://www.inyopools.com/Blog/pool-parts-101-the-difference-between-a-pump-and-a-motor/
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What would be the go kit for this pump?
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Do you need help finding the shaft seal to complete the motor replacement? If so, we will need the model number of the pump housing or a picture of the housing.
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I've the century st1202 model number K48N2N106C1 an want to buy the right gasket, diffuser, Impeller & Pump Shaft seal, seal plate what are the right part numbers. thanks
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Thank you for the information on your motor. To better assist you, we will also need the make and model of your pump. This information is typically listed on a label on the housing area, opposite the motor. Once we have this information, we can better answer your questions/concerns. You can also use our How To IdentifyYour Pump Blog for helpful tips.
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with regards to A.O. Smith 2 HP Round Flange 56J Full Rate Motor - ST1202. Does this come with all the seals and gaskets needed to install?
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Hi. Seals and gaskets are not included with motors. The seals and gaskets are specific to the pump housing.
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I have a Hayward Super II pump with a AO Smith C48M2N111A3 if this is the correct motor what other seals and gasket kits might I need? Also want to make sure this is the correct replacement motor
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Hi Mike, This is NOT the correct replacement motor for the motor you referenced. You will require this UST1202 2 HP Replacement Motor and you will also need this Hayward Super II Tune Up Kit both items are in stock ready to ship! We put together this Video on How to Replace a Pool Pump Motor which you may find helpful when you tackle this project.
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Replacing Design 1081 ST1202 MOD K48N2N106C1 Round Flange Picture below. Just want to be sure this product is the correct replacement motor. Is this the right one?
Hi Charlie, yes this is the correct replacement motor for your motor ST1202. 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 a Hayward super pump 2 model number k48n2n104 that I need to replace the motor. What is the correct part number for the motor. It is so smith 2hp with a 6 bolt pattern.
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Hello Jeffery. The Century Motors 2.0 HP Full Rate Motor ST1202 is the compatible replacement to the motor model K48NN104. The motor attaches to the motor mounting plate with 4 bolts. The motor mounting plate attaches to the pump housing with 6 bolts. it is recommended that the motor shaft seal, seal plate gasket, and diffuser o-ring be replaced at the same time. The GOKIT2 contains these [arts necessary to complete this project. Tune Up Kit Hayward Super II - GOKIT2 Attached please find an exploded parts diagram for reference. Hayward Super II SP3000 Series
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Can you tell me the replacement motor for a K48A34A06.
Thank you, Brian
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Hello Brian. The Century Motors 2.0 HP Full Rate Motor model ST1202 is a compatible replacement for the motor model K48A34A06.
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Is this model compatible to replace A.O. Smith Corp model K48N2PA102A2? Thanks.
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Hello Dom. The Century (A.O. Smith) 2.0 HP Full Rate Motor, Square Flange 48Y Frame, Single Speed - Model SQ1202 is a compatible replacement motor for the A. O. Smith motor model C48N2PA102A2.
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