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Thread: Code 91

  1. Back To Top    #1

    Join Date
    Jun 2016
    Mobile ala

    Code 91

    We have cleaned our cell and still get the code 91 low salt and service cell

  2. Back To Top    #2

    Join Date
    Jun 2011
    Long Beach, CA

    Re: Code 91

    Welcome to TFP!

    We need more information such as the brand of SWG that you have.

    Please make a signature and list your pool specs as that will help us to help you.
    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
    Mod Squad
    Join Date
    Aug 2012
    DFW, TX

    Re: Code 91

    Welcome to TFP!

    More here on adding your signature and what to put in it so that we can better help you with your pool. Pool School - Read This Before You Post
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  4. Back To Top    #4
    mikemass's Avatar
    Join Date
    Jul 2013
    Northern Howell, NJ

    Re: Code 91

    A quick Google Search: "code 91 salt cell" tells me OP has an Intex 8110. The search turned up many suggestions. In a nut shell top of the list is:

    1. Scaling can give a false low salt reading, needs to be cleaned - You did this already so check.

    2. Cell could be going bad - How old is it?

    3. It's possible you really are low on salt. Have you done a manual test?
    25 + year pool owner. Current pool (going on 11th year) - 38K gallon in ground Gunite/White Plaster, Spillover Spa, Hayward Cartridge Filter, Hayward 450k BTU NG Heater, Hayward Goldline Aqua Logic control with T-Cell-15 Salt Water Cell, Dolphin Explorer.
    You Need: Bleach, a A Test Kit & a Bookmark to "Pool School". Now what's your question?

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