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Thread: 2 Speed Pump Shuts Off On High

  1. Back To Top    #1

    Join Date
    Jun 2016
    Location
    Miami, FL
    Posts
    4

    2 Speed Pump Shuts Off On High

    Hi everyone,

    This is my first post here and I want to say that I have followed TFP since the day I moved into my house about a year ago. Thanks to you guys, my pool has not been green since then.

    My 2 speed pump was running on a timer starting in the morning on high for about an hour, then low, then on high from 6-8pm, then on low until the cycle repeated in the morning. Lately, the pool only runs on low continuously and works well. The problem is when I switch it to high where it only runs for about ten minutes and then it shuts off. As soon as I flip the switch to the low speed, the pool pump works well, but as soon as I switch it back to high, the high speed doesn't work. If I were to wait about 15 minutes, then the high speed works again for a few more minutes but then the same problem reoccurs. I have read some posts where it may be a faulty temperature switch or perhaps the bearings are bad. I don't know when the pump was installed or how old it is.

    In any event, I am not so handy when it comes to taking apart electric motors and repairing them, so if someone can recommend a trusted pool pump tech or store in Miami that can help me out, I would appreciate it.

    Thanks in advance!
    In-ground, 13,500 gallon square plaster (diamond brite) pool with two drains, one skimmer, one vacuum, a heater, and a waterfall. Pump: Century Electric UQS1202R 2-Horsepower 2-Speed Up-Rated Square Flange Replacement Motor (Formerly A.O. Smith) (total HP 2.20). Heater: AquaCal Heatwave (unsure of model #). Filter: Pentair Clean and Clear CC150 Cartridge Filter

  2. Back To Top    #2
    mas985's Avatar
    Join Date
    May 2007
    Location
    Pleasanton, CA
    Posts
    11,486

    Re: 2 Speed Pump Shuts Off On High

    Could be an obstruction in the impeller or perhaps the bearings are starting to go. Usually when a motor shuts off after a few minutes of running there is a large load causing excess power draw.

    Since the impeller is a little easier to check, I would do that first to rule it out. Remove the pump basket and reach into the impeller inlet and see if there is anything stuck in there.

    Is the pump a little louder than normal on high speed?
    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

    Join Date
    Aug 2015
    Location
    San Antonio
    Posts
    74

    Re: 2 Speed Pump Shuts Off On High

    Quote Originally Posted by neogeo View Post
    Hi everyone,

    This is my first post here and I want to say that I have followed TFP since the day I moved into my house about a year ago. Thanks to you guys, my pool has not been green since then.

    My 2 speed pump was running on a timer starting in the morning on high for about an hour, then low, then on high from 6-8pm, then on low until the cycle repeated in the morning. Lately, the pool only runs on low continuously and works well. The problem is when I switch it to high where it only runs for about ten minutes and then it shuts off. As soon as I flip the switch to the low speed, the pool pump works well, but as soon as I switch it back to high, the high speed doesn't work. If I were to wait about 15 minutes, then the high speed works again for a few more minutes but then the same problem reoccurs. I have read some posts where it may be a faulty temperature switch or perhaps the bearings are bad. I don't know when the pump was installed or how old it is.

    In any event, I am not so handy when it comes to taking apart electric motors and repairing them, so if someone can recommend a trusted pool pump tech or store in Miami that can help me out, I would appreciate it.

    Thanks in advance!
    Hi Neo

    I had the same issue. The windings in my high speed went out. It ended up messing ups one of the internals of the pump. My low speed would still work without shutting it off. I ended up replacing the whole pump (which I was planning on doing anyway) with a variable speed because I have some major rebates here from electric company.


    Matt in San Antonio
    10,000 gallon IG plaster
    Pentair Intelliflow 2VS 3hp 3/4 hp booster pump
    Hayward C-1100 Cartridge Filter
    Sunluway 18w Color changing led light

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