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Thread: Dual Speed Pump Misbehaving

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    Join Date
    Aug 2014
    Location
    Pasadena, MD
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    3

    Dual Speed Pump Misbehaving

    Hi all. I installed a 2.5 HP dual speed motor to my WhisperFlo pump last year. It's controlled by a Jandy Aqualink system (rev M I believe) with Aqualink One Touch RS Remote. The Aqualink is programmed to run high speed for 1 hour and then switch to low speed for 6 hours. Last week, the motor began toggling between high and low speed every couple of seconds. Constantly switching back and forth. I try to override with the remote and it doesn't stop. I switch to spa and it doesn't stop. However, if I set the system to Service and use the manual controls at the pump, the issue goes away.

    My assumption is that the problem is with my Touch RS Remote. It is old and beat up. Before I spend $500 on a new one, I thought I would ask for second opinions. Could it be the high/low relay or a short somewhere else?

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    mas985's Avatar
    Join Date
    May 2007
    Location
    Pleasanton, CA
    Posts
    11,489

    Re: Dual Speed Pump Misbehaving

    When the motor switches from high to low, is it reflected on the controller readout somewhere?

    If you hadn't told me it works when toggling manually, I would have suspected a bad centrifugal switch. But given, you can control it manually, it must be the controller but then is should reflect the speed change in the readout. If not, then yes, I would suspect the high/low relay as well but then I would expect that to still misbehave even in manual mode.
    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 2014
    Location
    Pasadena, MD
    Posts
    3

    Re: Dual Speed Pump Misbehaving

    Yes, I can witness the toggling on the display of the controller remote. Filter Pump kicks on, then Low Speed, then Filter Pump, over and over again. Must be the remote. Thanks mas985!

  4. Back To Top    #4
    bobodaclown's Avatar
    Join Date
    Apr 2011
    Location
    Lakeland, FL
    Posts
    2,351

    Re: Dual Speed Pump Misbehaving

    Could it be a bad/worn relay on the aqualink?
    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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