I've had my max about 4 months. It's a 2010, 37K miles. When I have the AC on and change the temperature to anything above 61, it blows out hot air. What's up with that? Anyone know why? Is it a simple fix? Thanks

 

We have quite the opposite problem, mine blows cold for any temperature below 80, then cool for 81-87, then hot for 88-90, no real middle ground lol

 

Probably a stuck temperature sensor. Or your compressor is failing. Or you are low on refrigerant.

I don't know of a cheap and quick fix other than taking it in to a garage to have a mechanic look at it, diagnose the problem, and quote you a price. It's probably a good place to start anyway.

 

This happened with my car also. My problem was a lose wire.

 

Which wire? And where is it located on the vehicle?

Thanks

 

It is very funny, because I just registered with this forum to ask the exact same question. I just traded in my 2000 Maxima for a 2010 SV with 25000 miles on it. When the AC is on 60 / 61 / 62 degrees, the air is cold. When I click over to 63 degrees, it starts blowing hot air. The car is still under factory bumper to bumper for about a month. I have an appointment at the local dealership tomorrow at 2:00 pm to get it checked out. I will let you guys know what they say.

 

I'm also having the same issue, it would be awesome if it's just a loose wire. Any info would be appreciated...

 

Check your in cabin temperature sensor...located under the push to start, it's a little vent. If u take out the the over under the steering there is a connector and could be loose.

 

Sweet! Just popped the panel off before I left work and that sensor is unplugged. Thanks!

 

Does anymore have a picture? I feel like a moron I can't find where to check for the sensor or which panel to pop off?

 

If you grab the bottom-right corner of your kick panel beneath the steering wheel and gently pull towards you this corner should pop out. The wire comes down from behind the start button. It has a white connector on the end of it

 

Thanks man, unfortunately mine was plugged in

 

The best way to test if the sensor is functioning would be to do auto function by pressing the temperature button. Once on scroll through the temps from 60-90, if the fan speed doesn't change or airflow direction...then there is a problem with that sensor!

 

Since the car has individual driver and passenger side climate controls I'm guessing there must be more than one sensor.

When the car is not on individual climate control does it use both sensors to sense the temperature ? Is it possible there is a 3rd sensor for when the climate control is not set for individual settings ?

If so you may want to run that check with the climate control on Auto but set to individual temps, then run up and down the temps on both sides and maybe you can isolate which sensor is bad.

 

Sorry for the late response.. I'm not sure which wire it was of even where it's located the Dealership didn't tell me nothing more than there was a loose wire. They'd done some work on my car and a few days prior and forgot to re connect it.

 

If there is one then it would be somewhere near the glove box area. But I don't think that really matters

 

How could you have dual climate control with only one sensor ?

Given there are most likely 2 sensors is why I suggested setting it for individual climate control and running the temps up and down. If you have the problem on both sides you either have 2 bad sensors or more likely another problem

You would have to have an electrical diagram to find out for sure or ask the dealer

 

I found the climate control sensors for dual setting. They are located on the moonroof control panel.

 

I too am having same problems and yet to find the solution. Will keep looking.

 

I just gave up on finding a solution, but I would like to it fixed sooner rather than later.

 

Same problem here when the weather is cold. Blows hot till 61/62...I own a 13' with 8k miles. For being a 44k car I really am disappointed with all these ridiculous issues with the car!

 

I noticed that I have the same exact issues. Currently, cold air blows at 60 and 61. 62 is lukewarm. 63 is pretty much hot (and is no different than 80 or so). I wonder if this issue is only prevelant during very, very, very cold weather (a la single digit temperatures).

Also, if I turn the AC On or Off, it does NOTHING. Before, I would actually hear and feel the climate control system work its magic.

I will check to see if my wire is loose later when I go out to my car...but something tells me that it isn't the case.

 

I have had the issue since summer when it ranges from 60-100 degrees. So we can rule the weather out as being the cause

 

So I fiddled with this today. I set the climate control to "Auto" and "Dual." When I put Driver Side to 90 and Passenger Side to 60 and the HVAC definitely ramped up. However, if I put Driver Side to 60 and Passenger Side to 90, it did absolutely nothing. Is this a sign of a faulty sensor that's causing the problem?

Dumb question: how do I remove this panel to see if my wire is loose or not? I don't want to mess up the physical clips by accident.



Also, not sure if this is related or is mere coincidence, but my car WAS handled by a local non-dealership mechanic a few days ago. He said he had to reset some computer stuff as it relates to steering/alignment. It's been so damn cold that maybe I just haven't noticed since there's no need to turn on the A/C for lower temperatures. Note: My climate control does not seem to be stuck in "Inventory Mode" (a la leaving A/C "On" setting but that the setting doesn't stick after turning the car back on).

 

FYI, I found a somewhat related issue and a poster mentioned reflashing the climate control computer at a dealership as a potential solution. What do you guys think?

http://forums.maxima.org/7th-generat...ol-issues.html

 

i just had this problem with a 2013 maxima. first simple step is to read the outside temp gauge on menu. if outside temp guage is not reading propely it will cause a/c system not to work when adjusted to 62 degrees or above. the outside temp guage is located on the front bumper on bottom grill. test for good ground. since it is a ground curcuit one of the wires must have ground. connect your test light to positive side of battery & back probe the wires. if test light doesnt light up then you have a wiring problem. if it does light up change that piece if not reading properly.(the car i had was reading -22 degrees) problem solved. after you change the sensor disconnect negative pattery cable to reset temp guage.

 

Other problems will result in the same symptoms, mine did that when the mechanic forgot to reconnect a wire behind the dash. Funny, I don't remember what the original problem was.

 

I read the thread and figured out how to fix the disconnected sensor. Unfortunately the interior lights stopped working when I pulled the kick panel out. I'm sure I disconnected another wire somewhere, but I'm not sure where to look. Does anyone know what wire I disconnected and where maybe?

 

Did you check for any blown fuses? I would do that before looking for loose wires.

 

@Richard66. I checked the fuse and it was fine. The lights went out before I reconnected the ac sensor but after I removed the pannel. What else could it be?

 

*** Correction. I double checked the fuse and it was bad. I replaced it and lights are fine now.

 

Check out this video - hope it helps

 

***THIS WAS EXACTLY THE CASE TY SO VERY MUCH FOR THIS VIDEO!! ***

I own a body shop and just bought a 2019 Altima with severe front end collision with airbags deployed. The long in short is everything worked fine EXCEPT this AC only @ 60 & 61 degrees, warm @ 62 and hot @ 63 pretty much like what this thread amazingly is PRECISELY about!!! One of the earlier replies did mention this "INTERNAL TEMPERATURE SENSOR W/ WHITE WIRE" and it made sense to me but this video showed me exactly where it was located!!! And upon having my tech double check the steering wheel area, it confirmed he neglected to plug in this exact sensor and now problem solved!!! Mind you the people that experienced this problem may not have noticed that along with the "Hot63+ degrees" problem, not plugging in this sensor will also cause the "AC AUTO BUTTON/FUNCTION" and "INTELLIGENT CLIMATE CONTROL UPON REMOTE START" also not to work properly!!! Again thx so much for the video as it was a lifesaver in this case!!!

 

You Tube

***THIS WAS EXACTLY THE CASE TY SO VERY MUCH FOR THIS VIDEO!! ***

I own a body shop and just bought a 2019 Altima with severe front end collision with airbags deployed. The long in short is everything worked fine EXCEPT this AC only @ 60 & 61 degrees, warm @ 62 and hot @ 63 pretty much like what this thread amazingly is PRECISELY about!!! One of the earlier replies did mention this "INTERNAL TEMPERATURE SENSOR W/ WHITE WIRE" and it made sense to me but this video showed me exactly where it was located!!! And upon having my tech double check the steering wheel area, it confirmed he neglected to plug in this exact sensor and now problem solved!!! Mind you the people that experienced this problem may not have noticed that along with the "Hot63+ degrees" problem, not plugging in this sensor will also cause the "AC AUTO BUTTON/FUNCTION" and "INTELLIGENT CLIMATE CONTROL UPON REMOTE START" also not to work properly!!! Again thx so much for the video as it was a lifesaver in this case!!!

 

I just bought this car and thought this was going to be a huge issue after reading this forum bc I was experiencing the same thing. However, I read somewhere where it was suggested to simply run your AC on auto and let it acclimate naturally, and it 100% worked for me.

 

I was having same issue the last several days with my 2010 Maxima. Guess what, I found wire that you described was not plugged in. Must have come unplugged when I was doing DIY remote start install. Anyway, I'm really happy to avoid taking it in to the garage and incurring fees, time back and forth, etc.!