hvac issues

Hey guys, 2012 Tesla Model S I've been trying to figure this issue out for a while and I'm wondering if anyone experienced anything similar. The A/C works fine (cold on both sides) but when using heat, only the drivers side gets hot but the passengers side blows cold (max A/C like) air. I've...

Full Blog Post here: Tesla A/C Smell That Wouldn’t Go Away – Finally Fixed Highlights: After extensive testing, YouTuber Adam Davenport found that a plastic clip on the bottom of the Tesla Model 3 or Model Y cabin air filter helps keep moisture from saturating the filter and causing that foul...

Curious if anyone has had a similar experience. My 2018 Model 3 Long Range heater stopped working about a month ago. No heat at all. They replaced the PTC unit at a cost, since I'm out of warranty - 62k miles. Since they've replaced it, it works nothing like it used to. It will generate heat -...

This morning was a fairly chilly morning in Central Florida (45 degrees this morning). When I left home to commute to work, I had HVAC completely off but the windshield started fogging up and I turned on the fan (fan only, HVAC was set to cool with A/C being off and temp set ot 72 degrees) and...

2019 model 3 LR issue on recent 250 mile trip…. The heater has a mind of its own. Can’t seem to find a rhyme or reason to it. Can be cold air when set to max temp. For most of the trip my feet were cold, otherwise it was ok. Sometimes temp was really high despite being set at 22…. Sometimes...

I have a 2023 Model S. I’ve found that the AC and fans trip off every 30-45 seconds when the front and rear is blowing hard. On for 30-45 and off for 30-45. Repeat. If I turn the rear off, the problem goes away. Anyone else seen this?

Just took my 2013 Model S P85 (50k miles) in due to some AC issues. The AC was making weird sounds and wasn’t working all that great. The vehicle is obviously out of warranty. Initially the estimate came back with a receiver and dryer cap replacement, desiccant bag replacement, high pressure...

It finally got me. My 2018 Long Range RWD with 108k miles on it finally started showing the following two error codes in the service menu: VCFRONT_a210_coolantValveCalib VCFRONT_a249_coolantValveBadMode Some of the symptoms I was having that made me check the service menu was that the car...

I have a 2015 Model S and ever since picking up the car from service, I have to manually turn on climate control every time I get in the car. If I don’t turn it on manually, it stays off and quickly gets hot if I don’t turn it on after a few minutes of driving. Any idea why this is happening...

The temperature in town yesterday was a whopping 103 degrees. I had to go to a store and was there about an hour. When getting back to the car, the temperature on the dash said 114. I turned on the Aircon and was driving home. Set the TEMP inside to LOW. All the way home it was blowing cool...

Hi all, just ran into a problem I was hoping you all could help with! My wife was supercharging our 2014 model S and after a couple minutes the ac started blowing super hot air. 5 minutes after that the car displayed an error message saying it couldn’t supercharge. Moved to a different...

My 2019 Model 3 SR+ seems to have an issue with blowing warm air to the rear vent when it should be cold. This issue happens when mild cooling is required, for example, outside 76°F and inside temp set to 72°F. The front vents will blow cold, but the rear will blow warm. If air recycle is on...

Why is there no button to turn off the heat like there is to turn off the AC? Use case: in the summer, I might set the AC to the high end of the temperature range that I feel comfortable at. But, in the evening, that may cause it to turn on the heat, even though I would rather have it not use...

2014 Model S P85D I’ve got a strange issue where the cabin temperature whether in auto or manual will suddenly switch from cooling to heating on any temp setting except low. Meaning if it’s 90° outside and I have the interior temp set at 67° all of a sudden my car will start heating full blast...

I have been driving my 2019 Model 3 for over 4 years now. Recently I have started experiencing unusually loud vibration when turning on the AC in hot weather. Let's say it's 90 degrees when I get in the car. I turn on the AC at 68 degrees. AC starts blasting and I can feel the car vibrating...

I took my car in for upper control arms to be replaced and for an issue with the AC blowing hot. I get it back and AC is still blowing hot? They were nice enough to take it back in almost right away. They already replaced the compressor, next they replaced the refrigerant pump. I get the car...

A doubt that I still haven’t seen answered in any forum or site, and that in these times of heat popped up into my mind. What is the limitation that exists in the Model 3 that maes it so that you cannot have cabin overheat protection at the same time as you have the alarm on, as happens in the...

When I go into the Climate Control Screen and turn climate control OFF the window closes as well. This bugs me because all I wanted to do was turn off CControl. When I'm done seeing the CControl settings I'll close the screen. As far as I can see this is the only screen that acts like this. All...

Hi everyone. I have strange problem with my air conditioning. Sometimes it's works fine, without any issue. AC compressor, 2 fans works well. But often it didn't work at all. I have many errors for all components of THC system. Errors are the same everytime. Attached it. System filled with...

My contact lenses get extremely dry when cold AC is blowing towards my eyes. I typically angle the driver's side vents away from my face, but I'm still catching enough air to dry my eyes out rapidly. Is there a way to turn off the driver side AC vents while leaving the passenger side on...

The ac compressor just failed on our RWD 2016.5 MS75 at 98500 miles. We were driving back to AZ from LA on the 10 freeway and got a warning that ac was limited and supercharging may be reduced. We barely made to the Ehrenburg SC as power and regen. slowly dropped to less than 5% and our speed...

I have a MYP on software 2023.20.9 and have notice that on some drives, my ac will not blow below 64 degrees (using a temperature gun shooting directly at the vents) even after driving for 30+ minutes when temp is around 100 degrees outside and temperature set at lowest setting. I know this is...

I've seen this posted for Model Y and S, but not the Model 3. It's now 97 degrees in my area. I went to my 2020 Model 3 one morning after it was charging overnight in my garage and the AC won't blow any air at all. Not just cold air, any air. I did a soft reset 3 times. It makes a weird...

Hi, I have a 2023 Model Y LR and the Air Conditioning makes a loud Humming noise when the fan speed is increase to half-max speed. Has anyone else had the same issue?

I'm wondering if anyone else is having the same experience, just want to confirm if it's normal. When I have the front and rear set to Auto and set the temp to 68deg for example, the rear air comes out much warmer. I can remedy this by setting the rear temp manually to 60, and only then will...

Hi, I know many parts of the US has been going through a heat wave this past few weeks. I live in the epicenter of the heatwave, here in Phoenix, AZ. I had my 23 Model Y long range awd for about 4 months now. Initially I was getting pretty good efficiency in the spring in my Y, about...

Hi all my heater went in my 2017 75D last winter (with a bang so I guess the fuse too). I see there’s plenty of parts on eBay for around £150. But are they all the same parts? Do model 3 fit the model s? Are the gen 1,2,3 versions all compatible with the same car? Had a quote for over £1500...

My AC recently went out. I was told it was the AC compressor that needs replacement and will cost $1200. I dropped off car at the shop and I am now being told that AC compressor requires replacement due to internal short. He is also recommending receiver drier replacement due to debris in the...

Seems to me that when I get into a blazing hot car that's been sitting out in the sun, the climate control takes it's sweet time bringing the coolness. Even with the temp on 69 and the interior in the 90's, the fan stays on medium for what seems to be a long time if you're burning up. When it...

I noticed this a couple weeks ago when we were seeing 110 degrees in the day. And seeing it today when it went up to 102. What I noticed was an extremely loud fan sound which seemed to be the car trying to cool down the battery or something. It shouldn’t be the cabin overheat protection...

Drove 109 miles in MYLR yesterday @ average 100deg normal WPM for this round trip is 240 yesterday 309. Energy screen showed 51.5% of battery used for drive of which 15% was consumed by climate, thats 29%! Drive time was approx 3 hrs Climate set to auto 73 deg rear/passenger vents on. I have...

Hello. I know there are a few questions and posts about I didn't find anything current. I purchased a 2023 Model 3 in February. I live in Arizona and right now, yes, it is very hot. Temperatures about 117 during the day. My Model 3 is kept in the garage and is only rarely outside in the sun for...

Have a loud buzzing / humming sound coming from the HVAC fan at speed setting at 7 and above. Makes the entire car vibrate. I just noticed it today of course after the warranty has just run out at 60,500 miles. I typically don’t turn the fan that high so I never experienced that sound before...

My rear ac vent does not flow when I turn the ac on unless I put the ac in Doggie mode first. It will then stay flowing when I turn the dog mode off. Is this really the only way to get the rear vent to flow? I've tries the owners manual without help and every control I see on the screen.

2019 M3 RWD This issue happened at the end of last summer 2 or 3 times but has persisted this summer on days the temp is over 95 degrees. When car is parked or driving under about 30 mph the a/c will continuously turn on and off while blowing warm, humid air. As soon as I am able to get onto a...

It’s getting hot here in interior California and I’ve been noticing my Dec 2016 Model S is not coping particularly well. It’s been north of 100 degrees the past week and I’m noticing relatively poor AC performance, along with fairly regular errors stating “cabin AC temporarily reduced, vehicle...

Hello - I set my model Y AC on auto and have observed few things. Can you please share wisdom if this is normal. * On auto settings, the fan speed continue to show low no matter what the outside and inside temperature is. Sometimes I do hear fan speed go up but there is no consistent pattern to...

Every time I start the vehicle only the front HVAC is on and I have to manually turn on the rear HVAC. How do I set it so that the rear is always on?

Hi guys, Driving the other day and got a vehicle may not restart code. Got it home thankfully once I got out it turned to can’t start low voltage. Contacted Tesla and they informed as suspected 12v battery went bad. (It was actually the original). Replaced the battery and everything was fine...

Got my MYP last week and we are in the Las Vegas desert, coming from a BMW, and it can be 110° outside and the AC can be super cold in less than a minute. I have not had enough time with the MYP to judge yet, but sometimes the AC feels cold, sometimes it feels weak. I normally feel this when I...

We had the common problem of "Cabin Overheat Protection" NOT turning on. We tried every tip we found online (turn setting on/off. reboot. turn off sentry. park/drive/park. etc..), and none of the tips worked. What DID work was removing the 2nd user profile from the Tesla Y. Once we deleted...

The interior temperature in my 2023 Model Y app display is about 10-20 degrees (Fahrenheit) higher than the actual temperature reading from a thermometer I placed in the car. Is this common phenomenon? Is there way to correct it? The inaccurate interior temperature reading make it easy to kick...

We live in Phoenix, so it is hot, our 2023 M3 standard range at 80% was getting about the range shown 223 miles during the winter. In the summer we are getting less than half of that, we now get less than 100 miles. The energy app shows that all the energy is lost under climate (only occurs...

Hi Everyone I have been having problems with the AC since few days now. It has been fixed for a sensor problem last year but not sure if it is the same problem coming again. Unfortunately, my MS2020 went out of warranty only few weeks ago 😪 The AC suddenly and after a recent system update...

I have a 2013 model s. I use the auto mode to set the temperature in the car and it is synced (not split) for both the driver and passenger. Last night the the passenger side and rear vents were blowing cold air but the driver side was respecting the setting I set in the UI. I tried rebooting...

Does anyone feel that AC is also venting through footwell area even when you set air flow to blow through the face level (the mid level as pictured), not the windshield level or foot-level vents. It's not a big problem when it's super hot but gets uncomfortable when you just want your face cool...

I have been using voice command "AC on" and AC off" since I bought my car in Feb, 2022; AC off command stop working after an update probably late last year. Anybody using voice command to turn off AC?

Hi all, first model S had a too short AC condensate pipe, water falled on the battery. Yeard after years this caused the battery to fail because of water that penetrate in the battery There was a recall to remediate this problem with a longer pipe To be sure that my car had been recalled, I...

I have a 2016 Tesla Model X and for the past few weeks my A/C only works if the car is in park. When the car is in drive, it blows hot air that smells like dirty laundry. In park it blows cold A/C air. It has consistently followed this pattern. There have been software updates since it started...

Took delivery of my Model Y LR end of April and experienced the dreaded “Cabin climate control system requires service”. I took it into service and they said it came out of the factory without enough coolant fluid. They took it in for urgent service given it was 90+ outside and topped it off and...