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Thread: ANOTHER Flow Sensor??!!

  1. Back To Top    #1

    Join Date
    Jun 2008
    Location
    Thornton, PA
    Posts
    76

    ANOTHER Flow Sensor??!!

    Folks-

    Last spring I opened the pool, to a bad flow sensor for my Jandy Apure 1400. It showed "no flow" despite there being plenty of flow. I read here a bunch here, inspected, tested, and indications were that it was the flow sensor. When I removed the old there was rust on one of the sensors, and a ridge had developed around one of the sensors indicating water may have made it to the electronics: so I figured the flow sensor was shot. OK, I spent the $200 and it worked flawlessly for all of last summer -I did make sure I got the black epoxy type.

    I open the pool THIS spring to the same error?!? I inspected and cleaned the flow sensor, twice, first with a scotch bright, then 220 grit wet sand. There was/ is no rust, no ridge and the sensors are shiny) but I still get the same no flow error. I inspected the cell, it's clean as a whistle.

    I'm thinking the water chemistry is spot on and not the problem: salt reading is 3,200, pH is 7.4, TA is 70, FC (via adding liquid): is 2.5, CC: 0, CYA: 80. Water temp is 72. Am I just to anticipate a $200 per spring charge on these things? Seems like a disappointing expense for these things.

    Also, anyone know which wires I could cross to bypass the flow sensor? The pump and the SWCG are turned on and off the same way (with the same circuit in the breaker) presumably I don't really need a flow sensor -push comes to shove...

    Anything else anyone would try before giving up and ordering a new flow sensor?

    Any and all input would be appreciated.

    Thanks,

    Dan
    28K Gal. 802 Sq Ft., Free Form, IG, Gunnite with Midnight Maui Hydrazzo Carlton Pool. Exposed Aggregate Decking. Jandy DE Filter, 1.5 HP Jandy Pump, SWCG. Zodiac 380 pressure-side cleaner. Completed Construction: May 2008.

  2. Back To Top    #2

    Join Date
    Jun 2011
    Location
    Long Beach, CA
    Posts
    2,670

    Re: ANOTHER Flow Sensor??!!

    Call Jandy and see if they will replace it under warranty. I'm on my 4th sensor, all replaced under warranty, but I have a 3 year warranty since I bought all my equipment at the same time.
    16k gal plaster with raised spa, Jandy DEV60 filter, 2 HP 2-speed SHPF Jandy Stealth pump
    Hayward Aqua Rite T-15 SWCG, Jandy LXi 400k BTU NG heater, 350 sq.ft. of Sun Star solar panels, TF-100 Test Kit, Dolphin s300i Cleaner
    Test Kits . Pool Math . Chlorine/CYA Chart . The SLAM Process

  3. Back To Top    #3

    Join Date
    Jun 2008
    Location
    Thornton, PA
    Posts
    76

    Re: ANOTHER Flow Sensor??!!

    Just an update, I did go through the front board trouble shooting guide available on line here: http://www.pleasurepoolsno.com/wp-conte ... Manual.pdf and the front board checked out OK.

    I did call Jandy and they indicated I should try and remove the adapter circuit board between the plug of the flow sensor and the front board. I did this and it seems to be working -weird, but then why was it there in the first place? Any idea what sort of longer term side effects may arise out of running without the adapter?

    Anyway, for others that may be seeing similar symptoms, you may want to try removing the adapter circuit board between the plug of the flow sensor and the front board, before you replace the flow sensor.

    Dan

    PS. the tech at Jandy was unwilling to let me know which wire colors were responsible for the flow indication....
    28K Gal. 802 Sq Ft., Free Form, IG, Gunnite with Midnight Maui Hydrazzo Carlton Pool. Exposed Aggregate Decking. Jandy DE Filter, 1.5 HP Jandy Pump, SWCG. Zodiac 380 pressure-side cleaner. Completed Construction: May 2008.

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