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Thread: Pool heater turns on automatically when weather gets cold

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    Pool heater turns on automatically when weather gets cold

    Hi,

    Sorry if this has already been covered in another post. Totally newbie here. We have a Pentair Water system with a salt water pool. Since the weather has been getting colder, our pool has been kicking on automatically when the temp reaches about 37 degrees. The pool heater has also been kicking on automatically. Is it really necessary for the heater to be on or can the water just circulate. If we don't need the heater, how do I unprogram the heater? Not too happy with the gas bill I just received...
    1) Pool Size: 24,907 gallons (20 x 40, 3'6" to 6" depth)
    2) catridge filter , very old - but have new Weirs
    3) IG with Gunnite and BRAND NEW PLASTER! Quartzscapes/Diamondbrite
    5) 1HP Pump, Filter Rate 50 GPM, 6 HR Turnover
    Completely new to this and looking to glean some wisdom from this site :)

  2. Back To Top    #2

    Join Date
    May 2007
    Location
    South Central NJ
    Posts
    3,192

    Re: Pool heater turns on automatically when weather gets col

    You can remove the heater from the freeze protect programming.

    Scott
    Owner of - PoolGuyNJ LLC
    Expert Pool and Spa Repairs, Renovations, and Augmentation. Helping people decide what is the right gear for meeting their needs. Expectations Set, Expectations Met, No Surprises.

  3. Back To Top    #3

    Join Date
    May 2007
    Location
    South Central NJ
    Posts
    3,192

    Re: Pool heater turns on automatically when weather gets col

    Or you could just turn it off too.

    Scott
    Owner of - PoolGuyNJ LLC
    Expert Pool and Spa Repairs, Renovations, and Augmentation. Helping people decide what is the right gear for meeting their needs. Expectations Set, Expectations Met, No Surprises.

  4. Back To Top    #4

    Join Date
    Oct 2011
    Location
    Frisco, TX
    Posts
    47

    Re: Pool heater turns on automatically when weather gets col

    I have another thread about this issue. I'd like to know what would cause this. I don't have a 'Heater' option under Freeze Protect. I've asked Jandy and they said only the controller could do this (so they say anyhow). It doesn't happen every time freeze protect kicks in (I dont think anyhow).

    Hopefully the OP is watching this forum...
    Size 13,000 gal | Filtration Jandy DE 60 | Sanitation PLC1400 SWG, Rainbow 320 | Placement in-ground (IG) | Coping Tennessee Crab Orchard
    Finish pebble smooth Tahoe Blue | Pumps Intelliflo VS+SVRS 3.0HP main | Lighting Jandy LED Spa/Pool
    Location Frisco TX US

  5. Back To Top    #5

    Re: Pool heater turns on automatically when weather gets col

    Brian, With a Jandy, If you normally only push SPA on, on your PDA to move the valves and turn on the heater, then thats what will happen every 15 minutes when you select SPA on the freeze protection menu. We normally set them up so you have to enable or turn on the heater in a separate function.

  6. Back To Top    #6

    Join Date
    Oct 2011
    Location
    Frisco, TX
    Posts
    47

    Re: Pool heater turns on automatically when weather gets col

    Typically have to do both. Do you know what would cause the heater to get out of 'remote tstat enabled'.
    Size 13,000 gal | Filtration Jandy DE 60 | Sanitation PLC1400 SWG, Rainbow 320 | Placement in-ground (IG) | Coping Tennessee Crab Orchard
    Finish pebble smooth Tahoe Blue | Pumps Intelliflo VS+SVRS 3.0HP main | Lighting Jandy LED Spa/Pool
    Location Frisco TX US

  7. Back To Top    #7

    Re: Pool heater turns on automatically when weather gets col

    After looking a the photos in the other post, this is what I think happened.

    Your heater was giving you a no flow code because the pump was off. Either you had a power failure or someone turned off the breaker to the heater and that cleared the remote tstat programming. After that the remote tstat was never re-enabled which left the heater in control of the operating temp. I am assumming that when the pool guy came out, he re-enabled the remote tstat.

  8. Back To Top    #8

    Join Date
    Oct 2011
    Location
    Frisco, TX
    Posts
    47

    Re: Pool heater turns on automatically when weather gets col

    Thank you. I think that is what happened. Either power or someone took it out of remote mode. Should that happen though from a power outage. That would be bad.
    Size 13,000 gal | Filtration Jandy DE 60 | Sanitation PLC1400 SWG, Rainbow 320 | Placement in-ground (IG) | Coping Tennessee Crab Orchard
    Finish pebble smooth Tahoe Blue | Pumps Intelliflo VS+SVRS 3.0HP main | Lighting Jandy LED Spa/Pool
    Location Frisco TX US

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