Alde hot water system not working

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  • Sharon_is_SAM
    Sharon_is_SAM Posts: 10,035
    edited May 2021


    B in the first picture is the glycol pump.

    Here’s another pic.





    Sharon / 2017 T@B CSS / 2015 Toyota Sienna Minivan / Westlake, Ohio
  • Syd
    Syd Posts: 50
    @Sharon_is_SAM - Excellent. Thank you
    Hopper - 2019 T@B 400
    Donald S. Cherry - 2016 Kia Sorento V6 (3.3L)
    Where we call home - Our House, Calgary, Alberta, Canada, North America, Earth, SOL, Milky Way, Universe
    GO FLAMES GO!
  • pthomas745
    pthomas745 Posts: 4,645
    @Syd Here is a thread with pictures.  The "sweet spot" seems to be around 1.5 and 2.  If the pump is set too high, it might gurgle and bubble.  Too low, and the glycol doesn't circulate.

    2017 Outback
    Towed by 2014 Touareg TDi
  • Denny16
    Denny16 Posts: 5,430
    The pumps are circled in red on this illustration here, which is similar to our TaB400 setup:


    2018 TaB400 Custom Boondock,  Jeep Gladiator truck, Northern California Coast.
  • Syd
    Syd Posts: 50
    Thank you @pthomas745. That thread has some great info.

    And Thank you @Denny16. That looks exactly like our setup.
    Hopper - 2019 T@B 400
    Donald S. Cherry - 2016 Kia Sorento V6 (3.3L)
    Where we call home - Our House, Calgary, Alberta, Canada, North America, Earth, SOL, Milky Way, Universe
    GO FLAMES GO!
  • qhumberd
    qhumberd Posts: 871
    I found it easier in my 2019 400 to see the little adjustment arrow on the main circulation pump from the outside access door. For the Flo pump I could see it better by lifting the panel at the head of the bed and looking down. maybe just the way my pump controls were oriented. And the scale for changes on the pump are not exact; mine has a small red arrow that you turn to about where you want it. I found after my flush with no air in the system that having the pump high (at 5) led to the reservoir tank pulsing with the fluid and that is what I could hear most. I turned mine to around 1-2 and I could see movement in the reservoir, but no noise or fluid churning, just a low hum from the system. I set my main and Flo to approximately the same spot.

    2019 T@B 400 Boondock Lite towed by 2016 5.7L Toyota Tundra

  • Syd
    Syd Posts: 50
    Thank you everyone for your help. On our first trip of the summer and we have more hot water than we know what to do with. I think it was the calibration of the pumps that finally did it. 
    Hopper - 2019 T@B 400
    Donald S. Cherry - 2016 Kia Sorento V6 (3.3L)
    Where we call home - Our House, Calgary, Alberta, Canada, North America, Earth, SOL, Milky Way, Universe
    GO FLAMES GO!

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