Step 11
Other information that is on the tag that is not essential to locating a motor match but still good to know are Volts, Amps, and Frame. Volts - Pool pumps normally have a setting of 115v, 230v or 115/230 dual voltage. Tip: Dual voltage motors are set to 230v from the factory so if you plan on using it for the lesser voltage is sure to switch this setting during installation or you may damage your motor. Amps - this is the power consumption of your motor, the higher the amps the higher the electric bill. Your specific pump may have an Energy Efficient motor available as a replacement. Check our Pump Motor section. Time - Pool pump motors are universally rated a CONT (continuous duty). Meaning they run constantly without needing to be shut off RPM - This stands for Revolutions Per Minute, single speed pumps run at 3450 rpm with dual speeds running at 3450 on high and 1725 on low.
InyoPools Product Specialist Matt S. Posted: 4/8/2019
If you only see one pump piped to your hut tub, then that would be a one pump system. If you search the part number in your original post 7-177781-02, it comes back as a two-speed motor. You may want to contact the manufacturer Nordic Spa if still are not sure what you have.Reply
jeff Posted: 3/31/2019
The GFCI on my spa kept tripping whenever I turned on the pump motor, a Century model #S48AA11A01. I expected to find corroded contacts or the like, but the guts, wire connections, bearings, coils are clean as new with the exception of a bit of surface rust on the rotor/armature. The line cord has no cracks or obvious issues. How would you continue to troubleshoot this problem?Reply
InyoPools Product Specialist Matt S. Posted: 4/1/2019
We have quite a few motor troubleshooting guides. A couple guides to check out first would be: How To Use a Multimeter to Test a Pool Pump Motor - Winding Resistance and How To Troubleshoot a Pool Pump Motor - Motor Shuts DownReply
jeff Posted: 4/3/2019
Thank you for your time and suggestion.Reply
Matthew Posted: 8/3/2018
Hello Justin - gallons per minute (GPM) is dependant on the pump housing and the feet of head of your plumbing system as much as it is on the motor. The B854 can be fitted to dozens of pump models, and those pump models have different flow rates. There are pumps for high head and medium head situations. Entry level pumps that can pump just enough and then premium high performance pumps for large pools. Essentially, there is more information needed to properly answer this question.Reply
Justin Posted: 6/27/2018
I have a Century B2854 and need to know the gallons per minute?Reply
Inyopools Posted: 6/7/2018
Hello Ricardo - We do not carry an HST110 motor. To calculate the watts, multiply the voltage by amps.Reply
Ricardo Posted: 6/7/2018
I have a Century pool motor, model # HST110. I need to know how many watts, is this motor. I'm planning to run the pump, using Solar energy, you know, panels, controller, battery, inverter an then the motor. Watts info. not on label, can anyone answer, this one?Reply
Inyopools Posted: 3/7/2018
Jim - Generally if you have four wire coming into a 220V pump, you would attach the two hot wires to L1 and L2, attach the ground wire to ground and cap off the extra neutral wire. I'm assuming that eh control unit has a neutral wire to provide the option of wiring to a 120V motor. Did your old control unit have 4 wires and were they attached as stated above?Reply
jim Posted: 3/3/2018
I have an older Magnetek pump 1081/1795. The pump works fine; however I have to replace my control unit. The control unit is setup for a 4 wire connector, the pump is 3 wire. Do I simply forget about the neutral wire and wire in my 2 hot leads and the ground?Reply
InyoPools Product Specialist Dennis R. Posted: 8/5/2017
Bob - This is not a concern. Tristar is the name of the pump. It generally uses Century (A.O. Smith) motors.Reply
Bob Posted: 8/5/2017
I paid for a Tristar motor and got aCentury motor. Should I be concerned?
Reply
InyoPools Product Specialist Dennis R. Posted: 3/23/2017
anonymous (warranty) - If you bought the motor from us, we will have your order and warranty information. Please give us a call at 877-372-6038 and one of our service reps will be glad to help you.Reply
Anonymous Posted: 3/23/2017
I purchased a Century pool pump motor from you six months ago and it is making a high pitched noise, possibly a bearing issue. I cannot locate a warranty contact for them. Is this who I should be calling and do you have the contact information?Reply
InyoPools Product Specialist Dennis R. Posted: 8/15/2016
robbieboy - Give us a call at 877-372-6038. We should be able to identify the bearings for your particular motor. You can use several types of motors to replace your current one. The main rule is that the motors' True HP must match. Look at step 9. True HP is the product of HP and SF. If you put in a motor that has less or more THP, you also might have to replace the pump's impeller and diffuser.Reply
robbieboy Posted: 8/15/2016
hi i have a century laser spa motor and it is knackered i think the bearings have gone how do i know what type of bearings to get? and worst case scenario can i just buy another motor? and if i do has it gotta be that exact type?Reply
InyoPools Product Specialist Dennis R. Posted: 8/10/2016
harry - There has to be enough room behind the motor to pull it out from the pump housing. If not, you will have to cut the pump out of the piping to service it. Add unions when you replace the pump so that it will be easier in the future to remove the pump. See our guide on "How To Replace the Motor on Your Pool Pump".Reply
harry Posted: 8/9/2016
how do I remove the pump from the motor? I have to change the motor but I do not know how to remove the pump. it is very tight is there a special way of doing it? please advise . thank you harryReply
InyoPools Product Specialist Dennis R. Posted: 8/6/2016
Pete - Your Magnetek Century Centurion motor, 10-186237-01 is a 2 HP FULL rated motor. Here is the link to that motor, 2 HP Standard Motor - Full Rate (B748, B2748). Note, this motor has an effective HP of 2.6 HP since it has a Service Factor of 1.3. Effective or Total HP (THP) is determined by multiplying the listed HP by the motor's SF. For more information, see our guide on "How To Understand True Pump Horsepower - Up Rated vs Full Rated".Reply
Pete Posted: 8/4/2016
I have a Magnetek Century Centurion part no. 10-186237-01 Serial no. B87-20 Can you please help in identifying the HP on the motor?Reply
InyoPools Product Specialist Dennis R. Posted: 8/2/2016
manufacture date - The manufacturer date of a pump is usually coded in the unique serial number attached to the pump. You would have to contact the manufacturer to have them decode the number.Reply
Anonymous Posted: 7/31/2016
How do you find the manufactur date on the pump?Reply
InyoPools Product Specialist Dennis R. Posted: 7/11/2016
Magnetek motor - According to our motor manufacturer reps: "There is no aftermarket replacement for this motor. This is a 4-pole special build for the OEM. Would need to go back thru the OEM for replacement".Reply
Anonymous Posted: 7/4/2016
I have a Magnetek motor that runs a water feature. Part number 8-184344-21. It has a separate tag stating that it's a specially designed motor. It has no HP rating or RPM rating. The frame is Y56Y,amps 4.8/9.6, volts 230/115 "HELP"Reply
InyoPools Product Specialist Dennis R. Posted: 3/30/2016
MAINTENANCE BROWN - Check that you have 220V coming into your pump's motor. Sounds like you may be trying to run on 115V.Reply
MAINTENANCE BROWN Posted: 3/30/2016
HEY I JUST BOUGHT A NEW POOL PUMP WITH HP=2.25 & VOLTS JUST 230 WITH 10 AMP, WELL MY OLD PUMP WAS TOTAL HP=1.25 AND VOLTS WERE 115/230. I CONNECTED THE PUMP & IT STARTED RUNNING BUT KEPT SLOWING DOWN AS IF IT WANTED TO STOP. THEN IT STARTED HAVING A BURNING SMELL & SMOKE. WHY IS MY PUMP NOT WORKING RIGHT? PLZ HELPReply
InyoPools Product Specialist Dennis R. Posted: 1/24/2016
Oki - If by "capacity" you mean the pump's ability to move water, you need to determine what Gallons per Minute (GPM) the pump will deliver. This starts with HP but then you have to estimate what resistance to water flow, or head, your pool system has. A given pump in a simple pool system with low resistance could deliver 65 GPM but with higher resistance it might only deliver 40 GPM. To determine how to estimate head, see our guide on "How to Size a Pool Pump for Your In-Ground Pool."Reply
Oki Posted: 1/20/2016
how do we know about the capacity?Reply
InyoPools Product Specialist Dennis R. Posted: 5/31/2015
Mike - These Century (A.O.Smith) motors are used in most pool pumps manufactured and are generally very reliable. Most people get 5-10 years out of them. If you are experiencing this kind of turnover on your motors, I would look to the conditions in which they are operating. If your motors typically run very hot there are several possible factors that would make a motor degrade faster. See our guide on "How To Troubleshoot a Pool Pump Motor - Motor Overheated".Reply
Mike Posted: 5/29/2015
My pool is 5 years old and I am now replacing the Century pump for the second time. 3 motors in 5 years. Are these motors that unreliable ???Reply
InyoPools Product Specialist Dennis R. Posted: 4/26/2015
pump housing - Unfortunately, the motor label only provides information on the pump's motor and not the pump housing. That motor is used with a number of pump models and manufactures. We need to identify the pump housing itself. We can sometimes do this through the part numbers stamped in some of the housing parts like the strainer cover. Please give one of our service reps a call at 877-372-6038 and they will help you id this pump housing.Reply
Anonymous Posted: 4/25/2015
My pool pump is a Century Centurion CAT B748, FR Y56Y. I have additional numbers from the label if needed. I am trying to find information on the housing and filter basket that the pump fits into. The housing on my pump is cracked and sprays water when the pump is turned on. Can that be replaced without replacing the entire pump? I would like to compare the cost of replacing only that part or replacing the whole pump. Thank you.Reply
InyoPools Product Specialist Dennis R. Posted: 4/4/2014
Texascat – Most people don’t try to replace a motor’s bearings because it takes special tools. You could take the motor into a local motor repair store but that sometimes costs as much as buying a new motor.Reply
Texascat Posted: 4/2/2014
My 3/4hp pump is making a loud noise all the time it is running. I believe it is the bearings. I don't have the tools to replace the bearings . Help meReply
stacirn Posted: 9/16/2013
Can I send a picture of my pump "sticker"? The motor needs replacing and my sticker looks nothing like what you have above....it is possible that the pump is almost 15 years old.Reply
InyoPools Product Specialist Dennis R. Posted: 10/18/2012
Energy Consumption - If you run 8 hours instead of 24 hours, you will reduce your bill directly to 1/3 your current cost. You may be able to do this in the summer also, you just have to ensure that your flow is sufficient to run all the water in your pool through the filter in the 8 hours.Reply
Energy Consumption Posted: 10/17/2012
I have a 3/4 HP pool pump (Century Centurion) running all the time. RPM 3450. Volts 230, i think. Amps from label 'SF 6.0/12/0' ??A friend suggests that I put the pump on a timer to run 8hrs day in the winter and save electical costs.
Question: How much will I save in electricity costs? The timer will cost $70
What's the down side?
Reply