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Coolant pump running all night

Discussion in 'Roadster' started by asgard, Jul 2, 2015.

  1. asgard

    asgard Member

    Joined:
    Aug 17, 2013
    Messages:
    296
    Location:
    CA
    Hi folks:
    It's pretty hot in my garage (95+ F) and the coolant pump in my Roadster ran all night and is still running. Is that normal?
    Thanks.
     
  2. dhrivnak

    dhrivnak Active Member

    Joined:
    Jan 8, 2011
    Messages:
    2,150
    Location:
    NE Tennessee
    Very possibly, as I know my pump runs MUCH more when it is warm. And I am fortunately that my garage rarely gets above 80. Not sure if the exact temperature but any time the pack is above say 130 the pump will be on.
     
  3. gregd

    gregd Member

    Joined:
    Dec 31, 2014
    Messages:
    581
    Seems to be. Mine ran for a couple of days last week after driving home, uphill, in mid-90's afternoon heat. I didn't think the ESS would be so well insulated or thermally massive that it would stay that warm for that long, but it kept humming. Next time I took the car to work (and a standard charge), upon returning home I gave it about an hour's charge at 240v, 24A, in RANGE mode, then stopped it. The end result was a pack with slightly less than a full STANDARD mode charge, and because the Range charge puts priority on cooling the pack first, when I unplugged everything, the pump turned off too. Yea!
     
  4. sethr

    sethr CPO Roadster #1089

    Joined:
    Mar 24, 2013
    Messages:
    152
    Location:
    Fairfax, VA
    The pump will stop running when the battery gets below 31 degrees C. (There is mention of this temperature buried in some thread that I saw a while ago.) I was having the same issue, and when I saw the temp. was at 32, I charged a bit more at low amperage, (just a couple miles worth), which got the pack down to 30, and presto, the pump turned off.
     
  5. evsolarman

    evsolarman Member

    Joined:
    Apr 24, 2015
    Messages:
    30
    Location:
    United States
    My pump was running for a long time.. the i realized one of the back doors was not closed properly..
     
  6. Habious

    Habious Member

    Joined:
    Sep 30, 2014
    Messages:
    410
    Location:
    Springfield, VA
    Umm...back doors?
     
  7. bobinfla

    bobinfla S-Vin 4086 Rdstr-Vin 0019

    Joined:
    Jul 9, 2012
    Messages:
    181
    Location:
    Land O'Lakes
    Must be Roadster 2.75 :biggrin:
     
  8. Rik

    Rik Member

    Joined:
    Sep 12, 2013
    Messages:
    131
    Location:
    Northern VA
    My pump would run 24x7 off and on. Sometimes the temperature would be warm enough to warrant it, however, I have found that my driver side outer taillight would be dimly lit in my garage when the car is off. Rockville SC shrugged it off last Fall. Tysons SC shrugged it off last week until I heavily influenced the techs to cup their hands around their eyes and the light to see the dim glow. They saw it and after 5 days of troubleshooting and part ordering, the answer is a new taillight. Heard a special Roadster tech from Jersey came down to Tysons and within minutes said "order a new taillight".

    Longwinded way of sharing that my pump had been running continuously on days when my taillight was faulting.
     

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