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Thread: Year old Intelliflow pump squeals only when it turns off

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    Year old Intelliflow pump squeals only when it turns off

    On both High (2400) and Low (1400) speed, it makes a quick squeal right as it gets turned off, slightly louder on High Speed. No noise while running or starting. I called Pentair and the tech rep said "Sometimes pumps do stuff that can't be explained" - I thanked him for the brilliant insight and say goodbye. It was installed mid September 2014.
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    Patrick_B's Avatar
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    Re: Year old Intelliflow pump squeals only when it turns off

    Welcome to the forum

    I hate to say it, but it is a machine and sometimes they do behave strangely. Perhaps some one can give insight whether or not this is a tell tale of something in the future, but I can't. Until it's an issue, I doubt anything will be done about it. Sorry not to offer anything of more substance. It would annoy me too I'm sure.
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    Re: Year old Intelliflow pump squeals only when it turns off

    Quote Originally Posted by Patrick_B View Post
    Welcome to the forum

    I hate to say it, but it is a machine and sometimes they do behave strangely. Perhaps some one can give insight whether or not this is a tell tale of something in the future, but I can't. Until it's an issue, I doubt anything will be done about it. Sorry not to offer anything of more substance. It would annoy me too I'm sure.
    Patrick - I have to agree with you, as of this morning, it no longer makes any unusual noise at all. I will monitor it, that's about all I can do. Thanks
    40x20 Gunite and Plaster, 3hp Intelliflow, Hayward 60 ft^2 DE filter, 3' at Shallow, 8' at Deep.

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    Agent99's Avatar
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    Re: Year old Intelliflow pump squeals only when it turns off

    I have the same pump...seems to make normal pump/motor type of noises.

    As long as it works, I wouldn't worry too much about it. I know not much help.

    If it does it again, clean out the strainer basket, maybe disconnect the plumbing and shake it and smack it a bit to see if anything is a bit loose or rattling or something.

    Sometimes just adjusting its position will fix or make things worse. YMMV (your mileage may vary).
    ----Chris----
    25k IG/Spa Figure 8, 18x36, Pebble Sheen Blue Granite, Sta-Rite S8M150 Cartridge Filter, Pentair 460805 400k BTU Heater & 011018 IntelliFlo VarSpd
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    Mod Squad Bama Rambler's Avatar
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    Re: Year old Intelliflow pump squeals only when it turns off

    There was a rash of Whisperflo (basis for the Intelliflo) pumps a while back that had a slinger against the back plate that chirped/squealed upon shutdown. I don't know what the fix was, but the consensus was that it wasn't hurting anything it was just a noise. Yours may be something like that.

    If it gets worse, then I'd start investigating the cause a little more seriously.
    Dave J. TFP Moderator
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