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Thread: AO Smith Swimming Pool Pump University Guide

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    bobodaclown's Avatar
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    AO Smith Swimming Pool Pump University Guide

    Link to AO Smith Swimming Pool Pump University Guide
    https://drive.google.com/file/d/0B_K...it?usp=sharing

    Talks about motor types, how a pool water pump works, replacement motor selection, voltage, Service Factor, capacitors, and other stuff. The motor trouble shooting guide is very helpful.
    It does come with a warning:
    WARNING!
    This is not a guide for the do-it-yourselfer.
    These tips and suggestions are offered for persons with proper qualifications and necessary test equipment.

    Here's the trouble shooting overview:

    FAILURE TO START (MOTOR MAKES NO SOUND)

    ■ Check voltage at motor line terminals. Voltage should correspond with motor nameplate rating (+10%).
    ■ Check all electrical connections at the motor terminal
    board.
    ■ If no voltage is present; check fuses, timers & switches.
    ■ Protector tripped — wait until motor cools then restart —
    check protector for continuity.



    FAILURE TO START (MOTOR HUMS OR ATTEMPTS TO START)

    ■ Check voltage at motor line terminals. If
    voltage is inadequate to start motor, check for
    loose connections, undersized wiring, overloaded circuit or other causes of voltage drop.
    ■ Start switch contacts not closed when motor
    is not operating. Switch may require adjustment. Switch contacts dirty or pitted.
    ■ Capacitor (where used) is “shorted” or “open”.
    ■ Check motor windings for “open” or “short”.
    ■ Check for continuity through protector.
    ■ Turn the motor shaft by hand to get the “feel”
    of the motor. If the shaft feels tight or
    doesn’t turn smoothly:
    • Check the bearings for smooth operation.
    • See if there is evidence of the rotor
    striking the stator.
    • Check for internal corrosion, cracked end
    frames, clogged fan or other obstruction
    within the motor.
    • Check pump for obstructions, binding
    impeller, or bent shaft.


    It discusses and shows pictures how to do voltage measurements, adjust the start switch, ground check, Winding continuity checks, capacitor checks, and pump disassembly. The manual is pretty indepth explains/shows images on how to replace bearings (give the sizes and bearing numbers), and a plethora of other general information.

    Hope you find it useful and made into a sticky.
    17K Kidney Shaped Pool Concrete (Diamond Bright) Pool, 3/4 hp 2 speed 115V Sta-rite Duraglas PEA5D-180L/P2R5D-181L (Impeller C105-92PS Diffuser C1-216P), 1.5 piping, Pentair CC100 Filter , Heat Siphon 100K BTU Heat Pump Pool Heater, Flow meter Blue White Flowmeter Model No. F-30150P, Hayward Astrolight SP0581N, SWCG CalimarTitanium Edition TE45 , Dolphin Nautilus Plus with CleverClean, Lakeland Florida

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    mas985's Avatar
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    Re: AO Smith Swimming Pool Pump University Guide

    I am not sure where you got that version but here is the web site:

    http://www.centuryelectricmotor.com/...niversity.aspx


    And links to docs:

    http://www.centuryelectricmotor.com/mmu_ac_dc.pdf

    http://www.centuryelectricmotor.com/3400_MMU_Pool.pdf


    Motor Doctor:

    http://www.centuryelectricmotor.com/Motor-Doctor.aspx


    Also, this is a very good reference:

    http://www.baldor.com/pdf/manuals/PR2525.pdf


    But the best reference is perhaps Joe Evan's site: www.pumped101.com
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

  3. Back To Top    #3
    bobodaclown's Avatar
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    Re: AO Smith Swimming Pool Pump University Guide

    Thanks Mark! Great info!
    17K Kidney Shaped Pool Concrete (Diamond Bright) Pool, 3/4 hp 2 speed 115V Sta-rite Duraglas PEA5D-180L/P2R5D-181L (Impeller C105-92PS Diffuser C1-216P), 1.5 piping, Pentair CC100 Filter , Heat Siphon 100K BTU Heat Pump Pool Heater, Flow meter Blue White Flowmeter Model No. F-30150P, Hayward Astrolight SP0581N, SWCG CalimarTitanium Edition TE45 , Dolphin Nautilus Plus with CleverClean, Lakeland Florida

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