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Thread: Spa temp

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    Spa temp

    Am a new pool owner with Pentair Easy touch remote for pool and spa. When I push button on remote to turn spa on, the water is not heating up. Could I have a setting wrong on the remote? Also the temp reading on the remote is off, it says the spa temp is 186 degrees.
    Gallons: 18000 (guestimate)
    Filter: DE (Hayward DE6020 --> Design Flow Rate of 120GPM)
    Type: Inground Plaster
    Pump: Hayward SP2807X10 (how do I determine flow rate of this pump?)
    Auto-Cleaner: Hayward Navigator

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    JasonLion's Avatar
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    May 2007
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    Silver Spring, MD
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    37,887

    Re: Spa temp

    Welcome to TFP!

    I think you just answered your own question. The EasyTouch thinks that the spa is 186, so clearly there is no need for the heater to be on. There must be something wrong with the temperature sensor. It might be mis-configured, but more likely there is some kind of hardware problem, a lose connection on the temperature sensor or something like that.
    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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    Re: Spa temp

    that makes sense...but where exactly is the sensor in the hot tub? and is this something i can check out myself?
    Thanks
    Gallons: 18000 (guestimate)
    Filter: DE (Hayward DE6020 --> Design Flow Rate of 120GPM)
    Type: Inground Plaster
    Pump: Hayward SP2807X10 (how do I determine flow rate of this pump?)
    Auto-Cleaner: Hayward Navigator

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    Join Date
    Jul 2008
    Location
    Rockville, MD
    Posts
    6

    Re: Spa temp

    In my setup (Jandy Aqualink RS), there is no sensor in the spa itself. The sensor is in the plumbing right after the pump and before the filter. It is inserted into a hole in the PVC and held with a clamp. It monitors the water circulating through the system when in spa mode (or pool mode) and turns the heater on/off accordingly.

    It should not be a big deal to replace the sensor if that is the problem. In the meantime look through the manual for the heater to disable the automatic mode so you can manually turn it on to heat the spa.

    Jim
    Jim R.

    29000 Gallon Freeform A&S Gunite/White plaster, finished June 2007. Attached 8' raised spa with spillover, Pentair Whisperflo 1.5 HP pump for spa jets, Polaris QT 1.5 hp blower. 2 HP Whisperflo main pump, Pentair FNS Plus 60ft2 DE filter. Jandy Aquapure 1400SWG, PS8 PDA control. A&A Quikclean infloor with 2.5 HP Whisperflo pump, leafvac canister, venturi skimmer. Whisperflo 2 HP pump for water features (Jandy 24" sheer descent + 1 roughed in). RayPac 400K Millivolt NG Heater, Polaris 360 cleaner, Hayward Colorlogic Pool & Spa lights.

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    mitch08's Avatar
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    Jun 2008
    Location
    Suffolk County, NY
    Posts
    370

    Re: Spa temp

    Quote Originally Posted by RinRMD
    In my setup (Jandy Aqualink RS), there is no sensor in the spa itself. The sensor is in the plumbing right after the pump and before the filter. It is inserted into a hole in the PVC and held with a clamp. It monitors the water circulating through the system when in spa mode (or pool mode) and turns the heater on/off accordingly.

    It should not be a big deal to replace the sensor if that is the problem. In the meantime look through the manual for the heater to disable the automatic mode so you can manually turn it on to heat the spa.

    Jim
    This is the same setup I have. It works well, but it is usually 1 degree off for the spa and 2 degrees off for the pool. It is easy to compensate for so it's no big deal. The only problem is having to explain it to other people if Im not going to be there.

    Spa temps are funny. You can totally tell the difference of just a single degree. Sometimes I am in there at night and the spa is 101 and I just need it to be 102 Or if its cooler out and it is 102, I can tell that 103 would be perfect. Then if it is 1 degree over you feel like you are going to melt. LOL.
    18x38 Inground Liner (25k gal) Paver surround, multi-speed pump, DE Filter, Raised spill over spa, TF-100

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    Guest

    Re: Spa temp

    I am going to make a guess here that whoever installed the system put the water temp sensor right after the heater outlet instead of BEFORE it! You want to monitor the water temp before the heater heats it up so you know what temperature is going into the heater but a lot of pool installers don't seen to have this simple fact down! I've seen this problem more than once!

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    mitch08's Avatar
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    Jun 2008
    Location
    Suffolk County, NY
    Posts
    370

    Re: Spa temp

    Quote Originally Posted by waterbear
    I am going to make a guess here that whoever installed the system put the water temp sensor right after the heater outlet instead of BEFORE it! You want to monitor the water temp before the heater heats it up so you know what temperature is going into the heater but a lot of pool installers don't seen to have this simple fact down! I've seen this problem more than once!
    I dont know why I didn't notice this a YEAR ago when you wrote it, or why I decided to read old posts randomly, but you are a genius!!! Thanks!
    18x38 Inground Liner (25k gal) Paver surround, multi-speed pump, DE Filter, Raised spill over spa, TF-100

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