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RandandDoug's avatar
RandandDoug
Explorer
Feb 17, 2015

Hydro Hot Question

Just went out to kick on the Hydro Hot to jump start the heater, and it wouldn't come on. Just had it serviced, but I checked the over flow tank and it was a little low, have some fluid I had bought for it, added it, and the hydro hot kicked right on. Is that normal??
Also, I probably should have waited, but the fluid was blue, for some reason I expected it to be green or yellow. Hope that is ok as well.
Thanks for any responses.
Class A

3 Replies

  • dougrainer's avatar
    dougrainer
    Nomad
    Feb 17, 2015
    Never heard of BLUE Propylene Glycol. Just make sure your BLUE container states GRAS and is Propylene GLYCOL. Doug
  • MRUSA's avatar
    MRUSA
    Explorer
    Feb 17, 2015
    There is a low fluid sensor that shuts it down. You probably lost some fuid by leak or evaporation. I used to have a tiny leak and this would happen. A few onces of fluid added would fix it. Since it took so little fluid I used distilled water which only very slightly reduced that antifreeze concentration.
  • lj2654's avatar
    lj2654
    Explorer
    Feb 17, 2015
    depending on the Hydro Hot some use a 50-50 mix of ethylene glycol and some use a special coolant made for hydrohots. Mine is a 2001 and mine uses a 50-50 mixture and it is green.Dont know why it started after adding fluid.

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