• Post new topic
  • Reply to topic

Is the Air Conditioning on?

Share

Room7
New Member
New Member

Posts: 9
Location: LA, Ca

Is the Air Conditioning on?

Post  on 10/6/2011, 2:22 am

Ive noticed the air coming out is really cold even when the air outside is 80-100degrees however the AC light isnt lit. I have the Auto button pressed and just adjust the temperature setting. Is the A/C on or off? I ask mainly because of fuel efficiency reasons.

By the way I live in Socal....Ill take a picture the next time i notice it, right now its dreadful and cold and rainy.

Fastlerner
Forum Member
Forum Member

Posts: 486
Location: Jackson, Mississippi
Current Car: 2011 Sonata SE 2.0T

Re: Is the Air Conditioning on?

Post  on 10/6/2011, 11:03 am

That's an odd quirk about the climate controls on this car. If you are in auto, it will do whatever it needs to do to get that temp. That includes turning on the compressor to cool the air or defog the windshield, changing which vents are used, inside/outside air, fan speed, etc...

The only time the AC will light up is if you have manually engaged it by pressing the button. I've even noticed that when I turn off auto and set the controls manually, the AC can still come on if needed to reach that temp, it just no longer adjusts vents and fan to get there.

If you want to make sure the AC is off, press the button once (light comes on) and press it again (light goes off). At this point it's guaranteed OFF until you either engage it or hit Auto.

It's quirky but once you get the hang of it it's no big deal.

brompt
Forum Member
Forum Member

Posts: 122
Location: Sherbrooke, Québec, Canada
Current Car: 2012 Sparkling ruby F20 Turbo

Re: Is the Air Conditioning on?

Post  on 10/6/2011, 12:07 pm

Check in your owner's manual in the AC chapter (I think). There's a defog program that takes control of AC. You can deactivate that fonction if you want.


_______________________
Brompt Smile

Brian
Forum Member
Forum Member

Posts: 34
Location: FL
Current Car: 2011 Sonata 2.0T SE, 2011 Sonata SE (Wife)

Re: Is the Air Conditioning on?

Post  on 10/6/2011, 1:01 pm

Fastlerner, thanks. I just tried what you said and that is exactly what happened. I am going to see if it can be turned off. Thanks again.

Fastlerner
Forum Member
Forum Member

Posts: 486
Location: Jackson, Mississippi
Current Car: 2011 Sonata SE 2.0T

Re: Is the Air Conditioning on?

Post  on 10/6/2011, 1:04 pm

brompt wrote:Check in your owner's manual in the AC chapter (I think). There's a defog program that takes control of AC. You can deactivate that fonction if you want.

According to the manual, cancelling the "defog logic" only affects whether or not the system automatically chooses the air intake (fresh or recirculate) when you press the windshield defog button.

manual page 4|97

daniejw
Senior Member
Senior Member

Posts: 1038
Location: New Jersey (South)
Current Car: '11 Sonata 2.0T SE

Re: Is the Air Conditioning on?

Post  on 10/6/2011, 1:35 pm

When you press the Defrost button. The AC automatically turns on and pumps the fan to level 3.


_______________________
Twisted Evil Semper Fi Twisted Evil
'11 Sonata 2.0T SE: Sparkling Ruby
3M Ceramic Series Tint (35%)
LED: Interior, Reverse, Lic Plate, Glove Box, Trunk
Xenon Supply: Low - 4300k, Fog - 3000k w/ Lamin-X
Nameless Performance:
FSTB (Powder Coated Black)
Short Ram Intake w/ K&N Drop-In Panel
Charge Pipe w/ Synapse BOV
Downpipe
Custom Performance Engineering:
QuickPower Pipe w/ Resonator & HFC
Austenite Cat-Back (Version 1)
Seoulful Racing USA:
Custom Tune - 262whp
NGK: 1422 Plugs
Saikou Michi Co.: Oil Catch Can - PCV
Stiff Ring: 14pc Chassis Set
PowerStop : Slotted/Drilled Rotors w/ Z16 Pads
Eibach : Pro Kit Springs

ScanGauge 2 (Boost, AFR/WB, Trans Temp, Oil Temp)

In The Works

Fastlerner
Forum Member
Forum Member

Posts: 486
Location: Jackson, Mississippi
Current Car: 2011 Sonata SE 2.0T

Re: Is the Air Conditioning on?

Post  on 10/6/2011, 2:24 pm

The main thing to realize is that with all the automation in the climate controls the AC will come on whenever the car determines it's needed, but in most cases doesn't light the dash light.

Just think of the dash light being on as an indicator that the AC is manually engaged. Pressing it a second time will turn it off and the car won't engage it again until you change it's mode (auto or defrost) even if you lower the temp.

So when it's cool enough that I just want straight outside air "as is", I'll put it on fresh then hit the AC button twice to make sure the compressor is off and crank the temp down so it's not heating (or cooling) the air at all. Crack the sunroof and you get a nice flow of fresh filtered outside air.

ticketking
Forum Member
Forum Member

Posts: 175
Location: la crosse,WI
Current Car: 2011 turbo sonata

Re: Is the Air Conditioning on?

Post  on 11/1/2011, 2:43 pm

I was wondering about this too. They should do some kind of recall for this. I have never seen such a thing, at least have the light come on the ac when it's on.

cbx4evr
Forum Member
Forum Member

Posts: 461
Location: Alberta, Canada
Current Car: 2012 Sonata Limited 2.0T, Ruby Red

Re: Is the Air Conditioning on?

Post  on 11/1/2011, 3:46 pm

ticketking wrote:I was wondering about this too. They should do some kind of recall for this. I have never seen such a thing, at least have the light come on the ac when it's on.


That's not going to happen.

grajr1952
Forum Member
Forum Member

Posts: 113
Location: Alabama

Re: Is the Air Conditioning on?

Post  on 11/1/2011, 7:45 pm

Why do you want to know when the A/C compressor is engaged?

cbx4evr
Forum Member
Forum Member

Posts: 461
Location: Alberta, Canada
Current Car: 2012 Sonata Limited 2.0T, Ruby Red

Re: Is the Air Conditioning on?

Post  on 11/1/2011, 8:16 pm

For me AC uses fuel of course. A lot of times I can cool the car down with ambient air with just the fan running.

grajr1952
Forum Member
Forum Member

Posts: 113
Location: Alabama

Re: Is the Air Conditioning on?

Post  on 11/1/2011, 9:14 pm

Understand that.

Fastlerner
Forum Member
Forum Member

Posts: 486
Location: Jackson, Mississippi
Current Car: 2011 Sonata SE 2.0T

Re: Is the Air Conditioning on?

Post  on 11/2/2011, 9:04 am

cbx4evr wrote:For me AC uses fuel of course. A lot of times I can cool the car down with ambient air with just the fan running.

Like I said, the light only indicates that you have MANUALLY set the compressor to run. So unless you have MANUALLY disengaged it, you can assume the car will use it as needed. This is by design.

Just engage and disengage the compressor 1 time and the car will never touch it again (even after ignition off/on) unless you change modes back to Auto and put the car in control of its use.
  • Post new topic
  • Reply to topic

Current date/time is 10/20/2014, 6:16 am