Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 10 of 10

Thread: Replacing Pump Motor

  1. Back To Top    #1

    Join Date
    Feb 2010
    Location
    South Alabama
    Posts
    26

    Replacing Pump Motor

    I am having to replace my booster pump motor and now the main pump motor! The booster pump motor started whining about a month ago, so I ordered a new one. While waiting on it to come in, my main motor went out!! My question is the new motor is the same specifications as the old motor EXCEPT the amps. My old motor is 8.5/1.5. The new one is 19.6/10.4-9.8 it says max load where the old one says amps. Is this okay to replace?
    10,620 gallons/IG/plaster
    SWG
    Cartridge Filter
    Ozonator (only because PB wanted my business!)
    Pump 1.5 HP (2-speed)

  2. Back To Top    #2

    Re: Replacing Pump Motor

    Does not look right. What motor are you looking at?

  3. Back To Top    #3

    Join Date
    Feb 2010
    Location
    South Alabama
    Posts
    26

    Re: Replacing Pump Motor

    This is the one I purchased from Amazon (the one that died was an A O Smith Century also).

    A.O. Smith ST1152 1-1/2 HP, 19.6/10.4-9.8 Amps, 1.5 Service Factor, 56J Frame, Capacitor Start/Capacitor Run, ODP Enclosure, C-Face Pool Motor
    1-1/2 HP
    3450 RPM
    115/208-230 volts
    10,620 gallons/IG/plaster
    SWG
    Cartridge Filter
    Ozonator (only because PB wanted my business!)
    Pump 1.5 HP (2-speed)

  4. Back To Top    #4

    Join Date
    Oct 2015
    Location
    Katy/Texas
    Posts
    411

    Re: Replacing Pump Motor

    Might be 19.6A @ 120V or 9.8A @ 240V.
    In ground, 14,000 gallon, white plaster, unheated, stone waterfall, DE Filter, Rainbow 320 Cl, Polaris 3900, FloVis flow meter, F100 test kit, Circupool RJ30+ SWG, Circupool VJ1/Speck Badu EcoM3V variable speed pump.

  5. Back To Top    #5

    Re: Replacing Pump Motor

    The new motor is a single speed, not a two speed.

    When replacing a motor, you need to match the total horsepower. The total HP is the label HP x the service factor (S.F). Any combination of Label HP x S.F that matches will work. For example, if you have a motor with a label HP of 1.5 and a SF of 1.47, then the total HP is 2.2.

    You also have to match the frame (Fr). For example, 56J or 48Y

    You also have to make sure that the motor will operate on the voltage of your supply wiring. Most two speed pumps are 230 volts.

  6. Back To Top    #6

    Join Date
    Feb 2010
    Location
    South Alabama
    Posts
    26

    Re: Replacing Pump Motor

    This is so confusing for a novice! My old pump is 1.5/.19 HP and SF 1.23, so the horsepower needs to be at least 1.845? And the old motor FR is Y56Y....so that has to match too? I'd like to get another 2-speed pump. How do I know for sure it is? I thought that's what the 2 different volts told me!

    Any ideas on a good, inexpensive pump? This is my old one!

    image.jpg
    10,620 gallons/IG/plaster
    SWG
    Cartridge Filter
    Ozonator (only because PB wanted my business!)
    Pump 1.5 HP (2-speed)

  7. Back To Top    #7

    Join Date
    Jun 2013
    Location
    South Florida
    Posts
    117

    Re: Replacing Pump Motor

    Your old motor is a two speed motor. The tag indicates 3450/1725 rpm. Hence, two speed. Your old motor is also rated to operate on 208-230V/1 phase power supply.

    You purchased a single speed motor from Amazon. In order to get the same exact motor, you will need to search for the part # listed on the motor tag. If it were me, I would return the new motor to Amazon and see about getting the same exact motor that you removed. That way it will all bolt up and wire up exactly as it came apart.
    10,000 gallon in ground diamond brite, Circupool si30+, Hayward C900 cartridge, 1.5hp Flotec single speed pump

  8. Back To Top    #8

    Join Date
    Feb 2010
    Location
    South Alabama
    Posts
    26

    Re: Replacing Pump Motor

    Thanks Buzzard! I've been trying that too, but nothing comes up on the part #!

  9. Back To Top    #9
    borjis's Avatar
    Join Date
    Aug 2014
    Location
    Pacific NW
    Posts
    2,049

    Re: Replacing Pump Motor

    I've had that too when researching motors...older part #'s that seem non existent.

    The best you can do is find the latest equivalant.

    Match up these to a modern offering and you should be good:

    2-speed & voltage

    Frame Type

    Horse power and SF (service factor)
    16x32 IG Vinyl, 13,000 Gals. Hayward S-244T sand filter, SP2810X15 pump
    (1.5 HP motor) Raypak PR266AEN (266k btu) gas heater. TF-100 Test Kit.
    Dolphin E10 Cleaning Robot.

  10. Back To Top    #10

    Join Date
    Feb 2010
    Location
    South Alabama
    Posts
    26

    Re: Replacing Pump Motor

    Thanks Borjis! Hopefully I just ordered the right motor!!
    10,620 gallons/IG/plaster
    SWG
    Cartridge Filter
    Ozonator (only because PB wanted my business!)
    Pump 1.5 HP (2-speed)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •