Become a TFP Supporter Pool Math Forum Rules Pool School
Page 1 of 2 12 LastLast
Results 1 to 20 of 21

Thread: Help! Pump problems, What should I do?

  1. Back To Top    #1

    Join Date
    Jun 2015
    Location
    Austin, TX
    Posts
    9

    Help! Pump problems, What should I do?

    I have a Jandy Stealth Series Pump SHPF 3HP which just quit working a few days ago, basically it would trip the breaker for some reasons, if I reset the breakers and try it again, it would try a few seconds (I can hear some noises) then trip the breaker again. First thing I tried was to check the run/starting capacitor with a multimeter, the capacitor value looks to be alright, ~50 uF. Then I removed the motor from the pump body, and found that I can turn the impeller by hand, so it's not stuck or anything. What should I check next? Try a new capacitor anyway? Or just replace the entire motor? Any suggestions?

    Thank you for any advice!

  2. Back To Top    #2
    Casey's Avatar
    Join Date
    Apr 2007
    Location
    SW PA
    Posts
    10,157

    Re: Help! Pump problems, What should I do?

    Welcome to TFP.

    Someone should be around shortly to help you with your pump.
    I'd bet you my bikini you'll never get TFP water from a pool store!

    24' Sharkline Venture De Filter

  3. Back To Top    #3

    In the Industry

    Join Date
    Jan 2012
    Posts
    340

    Re: Help! Pump problems, What should I do?

    A bad capacitor usually causes a loud humming noise. Is that what you are hearing?

  4. Back To Top    #4

    Re: Help! Pump problems, What should I do?

    I would first test input voltage in and out of the breaker, and if it's a 2 pole, each leg to ground. If you have a good inrush current amp clamp also test that. Then the motor, and centrifugal switch, but Im not sure of your access to the tools needed.

    When you tested the capacitor, are you sure your meter isn't reading nF?
    Unless your breaker is weak, or undersized, it would not typically trip before the internal OL, due to a failed capacitor.
    Remember, the motor is protected by the OL, the circuit is protected by the breaker.

    Have you tried turning the motor shaft? I know you said the impeller spun freely.

    If you need to parts change, try replacing the breaker first.
    24k gallon inground vinyl liner pool, 8'-3' depth, 2 skimmers, 3 returns, basic 5 chem kit.
    Hayward: DE-60 filter, Superpump VS, AquaRite salt chlorinator w/T-Cell 15, TigerShark QC robot. Jacuzzi hot tub ~350gal. Air blower type, w/8 jets.

  5. Back To Top    #5
    Thimble's Avatar
    Join Date
    Apr 2013
    Location
    Wichita, KS
    Posts
    93

    Re: Help! Pump problems, What should I do?

    Is the breaker GFI ? Those things can really be persnickety.
    15x30 IGP; 20,000 gallons; plaster
    Hayward SP2607X10 Pump; Purex Triton Tagelus Sand Filter
    Hayward Goldline T-Cell 15 SWG; Aquarite G1 Control
    Southwest Spas 400 gallon hot tub w/ozone
    TF 100 with speed stir

  6. Back To Top    #6

    Join Date
    Jun 2015
    Location
    Austin, TX
    Posts
    9

    Re: Help! Pump problems, What should I do?

    Quote Originally Posted by thepoolman View Post
    A bad capacitor usually causes a loud humming noise. Is that what you are hearing?
    Im not sure if it sounded loud to me, so it may not be the capacitor...

  7. Back To Top    #7

    Join Date
    Jun 2015
    Location
    Austin, TX
    Posts
    9

    Re: Help! Pump problems, What should I do?

    Quote Originally Posted by mgarf33 View Post
    I would first test input voltage in and out of the breaker, and if it's a 2 pole, each leg to ground. If you have a good inrush current amp clamp also test that. Then the motor, and centrifugal switch, but Im not sure of your access to the tools needed.

    When you tested the capacitor, are you sure your meter isn't reading nF?
    Unless your breaker is weak, or undersized, it would not typically trip before the internal OL, due to a failed capacitor.
    Remember, the motor is protected by the OL, the circuit is protected by the breaker.

    Have you tried turning the motor shaft? I know you said the impeller spun freely.

    If you need to parts change, try replacing the breaker first.
    That sounds like a lot of things to check, can I do these with a multimeter, that's the only instrument I got Yes, the meter reads uF. No, didn't try turning the motor shaft.

    Thanks a lot for your suggestions, I will try to see if I can get all of that checked out, appreciate it!!

  8. Back To Top    #8

    Join Date
    Jun 2015
    Location
    Austin, TX
    Posts
    9

    Re: Help! Pump problems, What should I do?

    Not sure how to post pictures here, the control panel has a GFC next to the breaker...

  9. Back To Top    #9

    Join Date
    Jun 2015
    Location
    Austin, TX
    Posts
    9

    Re: Help! Pump problems, What should I do?

    Update! I suspected it was the capacitor since I decided to measure the resistance of the capacitor and found the meter read ~20Mega Ohm, so I went ahead and ordered a new capacitor, and it arrived today. After replaciing the capacitor with the new one, it looked like that the pump actually worked a few seconds before the breaker got tripped again. When I say it worked, I mean I see the water started running a bit I also checked that the motor shaft actually turned freely.

    Attached are the pictures of the breaker panel that got tripped. There is a GFI next to the breaker. Do I want to try replacing the breaker?

    Thanks so much for any suggestions!


    Quote Originally Posted by ytulip View Post
    I have a Jandy Stealth Series Pump SHPF 3HP which just quit working a few days ago, basically it would trip the breaker for some reasons, if I reset the breakers and try it again, it would try a few seconds (I can hear some noises) then trip the breaker again. First thing I tried was to check the run/starting capacitor with a multimeter, the capacitor value looks to be alright, ~50 uF. Then I removed the motor from the pump body, and found that I can turn the impeller by hand, so it's not stuck or anything. What should I check next? Try a new capacitor anyway? Or just replace the entire motor? Any suggestions?

    Thank you for any advice!
    Attached Images Attached Images

  10. Back To Top    #10
    morzh's Avatar
    Join Date
    Jul 2015
    Location
    Jackson, NJ
    Posts
    238

    Re: Help! Pump problems, What should I do?

    Your breaker is likely a GFI, if it trips it and GFI is OK then it means the motor developed electrical insulation leakage and might need replacment, unless you are skilled in disassembling, cleaning and testing el. motors.

    Test GFI just in case, they are cheap compared to motors.

  11. Back To Top    #11


    TFP Guide

    cowboycasey's Avatar
    Join Date
    Jul 2013
    Location
    Fletcher, OK
    Posts
    3,346

    Re: Help! Pump problems, What should I do?

    is it just my screen, that does not look like a GFCI breaker... is there a push to test white button on it??
    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
    links: pool school * Recommended-Levels * SLAM * CYA chart * Test kits * How To Post Pictures * Poolmath * OCLT ** Support your website if we helped you :) **

  12. Back To Top    #12

    Join Date
    Jun 2015
    Location
    Austin, TX
    Posts
    9

    Re: Help! Pump problems, What should I do?

    Thanks! How do I test the GFI? I don't see any reset or test button on it.


    Quote Originally Posted by morzh View Post
    Your breaker is likely a GFI, if it trips it and GFI is OK then it means the motor developed electrical insulation leakage and might need replacment, unless you are skilled in disassembling, cleaning and testing el. motors.

    Test GFI just in case, they are cheap compared to motors.
    - - - Updated - - -

    No, there is no test or reset button on it. It was labelled as GFI, not GFCI.

    Quote Originally Posted by cowboycasey View Post
    is it just my screen, that does not look like a GFCI breaker... is there a push to test white button on it??

  13. Back To Top    #13
    morzh's Avatar
    Join Date
    Jul 2015
    Location
    Jackson, NJ
    Posts
    238

    Re: Help! Pump problems, What should I do?

    GFI a d GFCI are more or less the same, both compare the out and return currents and interrupt the circuit if unequal.
    By testing I mean, replace it. Self test is, like, "sir, did you commit this murder?" - "No" - "Ok, yoou are hereby declared innocent".

  14. Back To Top    #14
    morzh's Avatar
    Join Date
    Jul 2015
    Location
    Jackson, NJ
    Posts
    238

    Re: Help! Pump problems, What should I do?

    What I didn't quite get is, does it trip those non-GFI ones ir the GFI? And why the two non GFI are labelled "Pump" and what does the GFI one control?

  15. Back To Top    #15

    Join Date
    Jun 2015
    Location
    Austin, TX
    Posts
    9

    Re: Help! Pump problems, What should I do?

    Okay, got you I'll give it a try...

    Quote Originally Posted by morzh View Post
    GFI a d GFCI are more or less the same, both compare the out and return currents and interrupt the circuit if unequal.
    By testing I mean, replace it. Self test is, like, "sir, did you commit this murder?" - "No" - "Ok, yoou are hereby declared innocent".
    - - - Updated - - -

    it's the non-GFI ones that were tripped. I have no idea what the GFI one controls. But they are on the same control panel which is for the pool pump etc only.

    Quote Originally Posted by morzh View Post
    What I didn't quite get is, does it trip those non-GFI ones ir the GFI? And why the two non GFI are labelled "Pump" and what does the GFI one control?

  16. Back To Top    #16
    morzh's Avatar
    Join Date
    Jul 2015
    Location
    Jackson, NJ
    Posts
    238

    Re: Help! Pump problems, What should I do?

    If the non-GFI is tripped that may just mean your motor developed a shorted turn. If it is a 110V motor, and if it is pluggable, you can just pkug it elsewhere and see if it is still the case, but usually the motor is bad. In case of GFI tripping it developed leakage, so it may work as long as the water is not flowing, in case of tripping the regular one it won't work at all as there is a turn short.
    without the cap it won't even start so if it does and then trips, thecwinding is likely bad.

  17. Back To Top    #17

    Join Date
    Jun 2015
    Location
    Austin, TX
    Posts
    9

    Re: Help! Pump problems, What should I do?

    Thank you! So most likely, I'll need a new motor? The electrical connections are hardwired in some plastic conduit, don't know how to unplug it.

    Quote Originally Posted by morzh View Post
    If the non-GFI is tripped that may just mean your motor developed a shorted turn. If it is a 110V motor, and if it is pluggable, you can just pkug it elsewhere and see if it is still the case, but usually the motor is bad. In case of GFI tripping it developed leakage, so it may work as long as the water is not flowing, in case of tripping the regular one it won't work at all as there is a turn short.
    without the cap it won't even start so if it does and then trips, thecwinding is likely bad.

  18. Back To Top    #18

    Re: Help! Pump problems, What should I do?

    I wouldn't scrap a 3hp motor unless I knew it was bad.
    It could be a chaffed wire under the terminal housing, a shorted protector, run cap terminals touching cover, etc...
    I would have a professional look at the motor first.
    24k gallon inground vinyl liner pool, 8'-3' depth, 2 skimmers, 3 returns, basic 5 chem kit.
    Hayward: DE-60 filter, Superpump VS, AquaRite salt chlorinator w/T-Cell 15, TigerShark QC robot. Jacuzzi hot tub ~350gal. Air blower type, w/8 jets.

  19. Back To Top    #19

    Join Date
    Apr 2015
    Location
    South Central PA
    Posts
    296

    Re: Help! Pump problems, What should I do?

    The breaker labeled GFI does not appear to be a GFI breaker- it is probably the breaker for a GFI outlet located in the equipment pad area.
    20000 gallon vinyl liner in ground pool
    16' X 34' rectangular diving pool
    Hayward Pro Grid DE Filter
    Hayward 1 hp Super Pump
    TF-100 Test Kit Stenner 45MPHP10

  20. Back To Top    #20
    morzh's Avatar
    Join Date
    Jul 2015
    Location
    Jackson, NJ
    Posts
    238

    Re: Help! Pump problems, What should I do?

    I agree, does not look GFI, GFI has a tab inside the lever which is visible.
    The motor is worth checking if it can be looked at by someone knowledgeable and quick as the delay might cost you more than the savings from motor.


    As for symptoms, from the description it is not clear if the motor is stuck and makes noises, or ot tries to rotate and then trips the breaker.

    In the former case I woud try to see if the shaft is stuck, lubricate and try again (happened to me once), in the latter - likely a turn short, toss it, buy new.

Page 1 of 2 12 LastLast

Posting Permissions

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