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Thread: My 12,000 gallon spa

  1. Back To Top    #1

    Join Date
    Jul 2007
    Location
    Sahuarita, AZ
    Posts
    278

    My 12,000 gallon spa

    Lately I've been leaving my easytouch system set to 'Solar Preferred' heating because it usually doesn't get warm enough to trigger solar until mid-day and we like to take our 1 and 2 year old swimming some days before their afternoon naps. Solar Preffered mode uses the gas heater if the solar temp isn't high enough for solar mode. This usually works well as over-night the pool usually dips into the mid 70's (we don't use a blanket) and a couple of hours of gas heat in the morning get it into the 80's and then the solar finishes bringing it up to the 85 degree set point and maintains it for the day.

    Yesterday morning before I left for work I changed it from 'solar only' to 'solar preferred' since my wife was going to have some friends over and they thought they might go swimming. The temp was the usual mid 70's. They ended up not going swimming and that night after dinner I just happened to dip my toes in the pool and noticed it was HOT. I grabbed the thermometer and sure enough, the water was 98 degrees in the pool!

    The only way that I can see this occurring is that the easytouch relay which powers the heater must have gotten stuck. The pool temperature set point was 85 and even if somehow it had gotten into Spa mode yet neglected to move the valves, the spa set point was only 95. A temp of 98 in the pool (and this is an hour or so after the pumps shut off at 5:00) can only mean that the heater ran all day long and then shut off when the pool pump shut off.

    Has this happened to anybody else? My equipment is less than a year old so I suppose I need to have the PB come out and swap some relays but I definitely want to make sure it doesn't happen again.
    My Pool:
    12K gal IG gunite with 7' raised spa, gunite waterfall, PebbleTec Caribbean Blue finish, solar heating & in-floor cleaning system

    Equipment: Sta-Rite 300' Cartridge Filter, Intellichlor IC20 SWCG, Sta-Rite 400k BTU heater, Intelliflow 4x160 main pump & Sta-Rite 3/4 hp waterfall pump, EasyTouch controlls w/ wireless controller, TF-100 Test Kit w/ salt test.

  2. Back To Top    #2

    Join Date
    Jul 2007
    Location
    Sahuarita, AZ
    Posts
    278
    Ugh... the wife just called and said the pool is now at an even 100 degrees. Last night when I initially noticed the problem I immediately changed it back to 'solar only' mode. Apparently that didn't help.

    I believe the heater is powered off the relay for the pool pump yet is triggered to activate by a separate relay dedicated for the heater. The second relay must be stuck closed such that the heater runs whenever the pump runs.

    Anybody think I'll have any luck getting my gas bill paid by the PB?
    My Pool:
    12K gal IG gunite with 7' raised spa, gunite waterfall, PebbleTec Caribbean Blue finish, solar heating & in-floor cleaning system

    Equipment: Sta-Rite 300' Cartridge Filter, Intellichlor IC20 SWCG, Sta-Rite 400k BTU heater, Intelliflow 4x160 main pump & Sta-Rite 3/4 hp waterfall pump, EasyTouch controlls w/ wireless controller, TF-100 Test Kit w/ salt test.

  3. Back To Top    #3
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,887
    If you can't get the heater off any other way, you could turn off the gas valve.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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