Heat Problem?

Discussion in 'Hyundai Kona Electric' started by Boston Charger, Nov 17, 2019.

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  1. Boston Charger

    Boston Charger New Member

    Living in Boston just starting getting into EV heating situations. With the "Auto" button off, both "AC" and "Heat" buttons come on when first entering the vehicle in the morning, needing heat. Why would both come on? Logically, isn't it one or the other?
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  3. Not necessarily. You can cool down the air first to remove moisture, then heat it up again to be warm. But of course it's a huge energy waste.

    Sent from my moto x4 using Tapatalk
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  4. nigels

    nigels Active Member

    It sounds like the heating system is trying to defog the cabin. I haven’t seen both modes enabled at the same time yet.

    Hi from Boston! I’ve only ever seen one other Kona Electric in the area.
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  5. Boston Charger

    Boston Charger New Member

    Hello! I've only seen one other myself. Lots of other electric/hybrid vehicles though.
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  6. EnerG

    EnerG Active Member

    I posted previously on this exact same bug. It is a pet peeve of mine that "manual mode" decides what you want in an "auto mode" fashion.
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  8. ericy

    ericy Well-Known Member

    Does the car have some sort of humidity sensor that causes it to turn this on by default? Or was it measuring fogging somewhere?

    In my drive this morning (mid/high 30's), I never saw the AC light come on.
  9. Only seen heat come on randomly on startup without being specifically requested. The HVAC does have its quirks. In Auto mode I would expect both AC and heat to be engaged, however, for drying as mentioned.
  10. SkookumPete

    SkookumPete Well-Known Member

    P. 3-131 in the US manual, which also details a magic way to reset the "defogging logic".
  11. Paul DeLeon

    Paul DeLeon Active Member

    I suggest we all unite to coerce Hyundai to replace our lousy heaters with heat pumps.
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  13. Pushmi-Pullyu

    Pushmi-Pullyu Well-Known Member

    Exactly. In my old (circa 1977) Honda Civic, I sometimes had to run the A/C for several seconds in winter, to defog the windows, even when running the cabin heater. Maybe your car is "smart" enough to detect the level of humidity in the cabin?

  14. Ace's Mom

    Ace's Mom New Member

    Hi. I'm new to both this forum and to my Kona EV. I've noticed that when you turn on the heat, it comes out cold until the heater warms it up. Is there any way to not have cold air coming in when it's in the 30s outside?
  15. The best you can do is press the "off" button which turns the fan off. You could try recirc as well but the windows might fog up.
  16. Ace's Mom

    Ace's Mom New Member

    I thought the OFF button also turns the heat off :-(
  17. You can preheat the Kona using bluelink app before you get in that might help.
  18. SkookumPete

    SkookumPete Well-Known Member

    Other than turning the fan to the lowest setting? The air begins to heat immediately, so at least it will be a degree or two warmer from the start. Closing vents would be counterproductive.

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