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Air conditioning issues

Discussion in 'Model Y' started by PatrickFilion, Jul 14, 2020.

  1. PatrickFilion

    PatrickFilion New Member

    Joined:
    Jul 14, 2020
    Messages:
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    Location:
    Montreal
    Hello everyone,

    I do have issues with the air conditioning, when I set it to automatic and a set point of 24 deg C (75), I’ll be fine for 20 – 30 minutes or more.

    Then I get hot air and the temperature in the car goes to 25 in the app. It’s really not comfy.

    I have to open the windows otherwise it’s a sauna.

    Help please…
     
    • Like x 1
  2. mac9899

    mac9899 Member

    Joined:
    Aug 27, 2019
    Messages:
    87
    Location:
    Florida
    See this thread: A/C problems —help!

    Might be a temperature sensor issue;
    PT Sensor, Low Pressure
    Part #: 1510048-00-A
     
    • Like x 1
  3. CaliX

    CaliX Member

    Joined:
    Feb 14, 2016
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    518
    Location:
    Los Angeles
    Do you get the lasted update?
    2020.24.6.5
     
    • Disagree x 1
  4. Wennfred

    Wennfred Supporting Member

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    San Diego
    Try a reboot, that worked for me in Las Vegas where temps got to 115F

    Fred
     
  5. PatrickFilion

    PatrickFilion New Member

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    Yes I did
     
  6. CaliX

    CaliX Member

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    Location:
    Los Angeles
    I did the same update then my AC quit working. I did a hard reset then it came back. There are Video's on youtube on how to do a hard reset if you're not sure how to do it.

    I watch this video and it worked.
     
    • Like x 1
  7. PatrickFilion

    PatrickFilion New Member

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    Justed done it, I will check tomorow
     
  8. beachmiles

    beachmiles Member

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    Location:
    Redondo Beach
    It sounds like the Y has to moderate the cooling from the system AC the same way model 3 does. At least you get a heat pump where the has to use the PTC cabin heater. So to ensure you don't use the heater when all you really want to do is cool the car is to set the temp to LO and adjust the temp by turning down the fan speed or opening more vents. With the heat pump you prob don't need to worry about this as much as the 3.
    People have been asking for a heater off button for years for all Tesla md with no success.
     
  9. Wennfred

    Wennfred Supporting Member

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    Don’t set it to LO, the A/C will shut down after a few minutes at around 77 degrees and then starts to get warm again, set it to 61or 62, I found that with the low 60’s it will keep working.

    Fred
     
  10. beachmiles

    beachmiles Member

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    #10 beachmiles, Jul 16, 2020
    Last edited: Jul 16, 2020
    Not sure about the MY but the M3 and every other Tesla constantly uses the cabin heater to maintain the 1 temp setpoint. It doesn't appear able to adjust the cooling AC to the cabin and is either just on or off so the cabin heater is used to keep the temp from going too low.
     
  11. KMMM

    KMMM Member

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    Apr 18, 2019
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    Location:
    Wisconsin
    Fred, I think you’re on to something here and I discovered the similar workaround today. If you’ve noted my prior posts, I have been struggling with A/C issues and the service center has been less then helpful. I’m still waiting on a text back...They have developed a genius customer service workflow where they never have to actually talk to you, you don’t know if they reviewed the message or if they will ever respond. First world problems, I know. However, for the first time today the A/C worked as expected on each trip I made when leaving it in the mid 60s and not turning to LO.
     
  12. Wennfred

    Wennfred Supporting Member

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    So cool, glad it works for you, I keep mine at 62 now and it runs all day.

    Fred
     
  13. im4uttx

    im4uttx Supporting Member

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    Location:
    Spicewood, TX
    I changed to "recirculate" yesterday, in >100F heat, and it helped get much colder air, without adjusting the temp. Makes sense if it is really hot outside, and cooler in the car, to not try to cool hot air, but cool cooler air...
     
  14. PatrickFilion

    PatrickFilion New Member

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    Location:
    Montreal
    Hello Folks,
    I went to Tesla for the issues with the AC, Julie Delisle (Store Leader North America Sales) told me I do not know how to use the automatic mode on the Tesla...
    Thanks Julie, automatic is automatic, there is nothing I can do... Dumb... 2020-07-16.jpg
     
    • Like x 1
  15. John Falconer

    John Falconer Member

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    May 17, 2020
    Messages:
    10
    Location:
    NorCal
    My MY AC has been perfect up until two weeks ago when, on a warm day, it just refused to issue cold air. It is now at the Tesla service center in Berkeley, awaiting PT Sensor, Low Pressure, Part #: 1510048-00-A. I was told that this part was determined at fault via remote diagnostics prior to my bringing the car in. I do have a loaner Model S but it has just been sitting in my carport ... I don't really care for it in comparison to the MY.
     

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