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Thread: Heater won't heat higher than 95 degrees

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    Heater won't heat higher than 95 degrees

    Hi all,

    My heater "works" but the SPA gets to about 95 and then won't go higher. The temp setting is at 104. It seems to light, but then quickly turn off after it gets to 95. It tries again, but then stops again.

    It's a Pentair 250N, purchased in 2012.
    Doug Sleeter - Pleasanton, CA
    Remodeled in Dec 2015: 25,000 gallon Pebblec pool, 18" raised spa with 6 jets and 32" wide spill wall into the pool.
    Equipment: Pentair Intelliflow VS pump, Easytouch 8, Pentair Clean & Clear Plus 320 filter, Pentair Mastertemp 250 heater, Solar heating

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    Re: Heater won't heat higher than 95 degrees

    When you say 95, is that what the ET says or the heater display?
    Paul
    Gastek Pool & Gas Services If you would like to provide a review of the help I provided, please use the following link to leave a review. Gastek Google review,
    Check out some videos on my YouTube channel - Gastekservices on YouTube

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    Re: Heater won't heat higher than 95 degrees

    95 degrees - PER screen logic app. But it also feels way less hot than 104.
    Doug Sleeter - Pleasanton, CA
    Remodeled in Dec 2015: 25,000 gallon Pebblec pool, 18" raised spa with 6 jets and 32" wide spill wall into the pool.
    Equipment: Pentair Intelliflow VS pump, Easytouch 8, Pentair Clean & Clear Plus 320 filter, Pentair Mastertemp 250 heater, Solar heating

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    Esloser's Avatar
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    Re: Heater won't heat higher than 95 degrees

    Check which setting your heater is in. I know I read something in my Hayward Heater manual about the pool having a max set temperature and the spa's being higher at 104. I can't seem to find it right now.
    36,000 Gallon Inground (IG) Gunite Pool with Spa and 12" tanning ledge | White Plaster | Cartridge Filter | Hayward Single Speed Pump (x2) | 400k BTU Hayward Heater | Hayward ProLogic Automation | Taylor K2006 Test Kit | In-pool Cleaner | August / September 2016 Build Date | Build Thread

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    Re: Heater won't heat higher than 95 degrees

    On my RayPak heater the instructions say for remote control use set the heater's internal setting to max (104) before switching over to remote operation. So if you missed this step, and say only set the internal heater setting to 90, even if the remote is commanded to heat to 104, the heater would shut off at 90.
    Perhaps this is your problem.
    20K gal In-ground pool with raised Spa overflowing into pool; two Jandy Sheer Descent waterfalls; Pentair IntelliTouch i7+3, IntelliChlor, IntelliPH, 3 SAM/SAL lights, Pentair FNS60Plus filter, two 1.0 HP WhiperFlow pumps, Jandy/Compool auto-valves, RayPak Heatpump, RayPak 406A LP spa heater, Polaris 360 PS Cleaner. Patio and deck lighting by Volt; Volt 600W landscaping transformer; Webber grilling station

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    Re: Heater won't heat higher than 95 degrees

    Quote Originally Posted by CountryBumkin View Post
    On my RayPak heater the instructions say for remote control use set the heater's internal setting to max (104) before switching over to remote operation. So if you missed this step, and say only set the internal heater setting to 90, even if the remote is commanded to heat to 104, the heater would shut off at 90.
    Perhaps this is your problem.
    Thanks. Mine is a Pentair, but I think there is a similar setting. However, I doubt that is the issue because it just started happening. Still, I'll see if I can check it. Thanks.
    Doug Sleeter - Pleasanton, CA
    Remodeled in Dec 2015: 25,000 gallon Pebblec pool, 18" raised spa with 6 jets and 32" wide spill wall into the pool.
    Equipment: Pentair Intelliflow VS pump, Easytouch 8, Pentair Clean & Clear Plus 320 filter, Pentair Mastertemp 250 heater, Solar heating

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    Re: Heater won't heat higher than 95 degrees

    I would say to eliminate the ET system and use the heater controls only to see if the heater gets past 95. If not, then you have an issue with the heater. Also make sure the heater is set to 104.
    Paul
    Gastek Pool & Gas Services If you would like to provide a review of the help I provided, please use the following link to leave a review. Gastek Google review,
    Check out some videos on my YouTube channel - Gastekservices on YouTube

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