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Hyundai Sonata Climate Control Questions

62 messages,  Last post on Nov 02, 2009 at 9:51 AM

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What is this discussion about? Hyundai Sonata, Heating / Cooling, Sedan


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#3 of 62
Re: Automatic climate control [drdonrs] by whisper1
May 03, 2007 (8:26 pm)
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Replying to: drdonrs (May 03, 2007 6:16 pm)

#2 "temp. is controlled in the same manner as above", strange even with AUTO offline.
 
For the pass 4 days, I was sure the air cond was on, but no indication except the cool air, there goes the gas mileage . I pressed some buttons today and the behavior is now as expected. Too bad I forget what I pressed to get into this behavior and worst forget the steps to fixed it
#4 of 62
Re: Automatic climate control [whisper1] by rick2456
May 15, 2007 (6:04 am)
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Replying to: whisper1 (May 03, 2007 8:26 pm)

The above is why I got the SE instead of the limited. I find automatic climate control to be a pain in the butt. I much prefer the simpler manual controls instead of fooling with temp settings, etc to try to get the car to put out the kind of air I want at that particular time. Some like it, but I consider it a step backwards in vehicle comfort.
#5 of 62
Re: Automatic climate control [rick2456] by targettuning
May 15, 2007 (6:37 am)
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Replying to: rick2456 (May 15, 2007 6:04 am)

I am one who likes it and what could be more simple..set the display for, say, 72 degrees and it will keep about that temp year round. Heat in the winter, nothing added in the spring (not cold AC air nor heat unless required by outside temps)and COLD air when it is 85 or 90 degrees outside. I am always fumbling and fiddling and tweaking the knobs with manually controlled AC...too cold, not cold enough, something in between..
#6 of 62
Re: Automatic climate control [targettuning] by whisper1
May 16, 2007 (4:47 am)
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Replying to: targettuning (May 15, 2007 6:37 am)

It is a very good feature, I like it.
 
I have a habit to switch off AC and let the fan run a minute prior park to remove some moisture on the condenser. This is way too complicate for the wife to follow when in auto mode.
 
I think something is missing in the climate control software. Everything on the climate system in auto mode have an indicator, except AC in auto mode. Ideally the AC indicator should follow the compressor relay in any mode.
 
Interesting question:
 
#1 The climate system doesn’t have a heat only or cool only switch in auto mode, in the event that the setpoint temperature is met, what does the climate system do, for example in summer ? I can think of two scenario.
 
a) Switch off AC, keep fan running; temperature buildup then switch on AC.
b) Switch off AC, keep fan running, turn on heater; temperature buildup then switch off heater and switch on AC. I hope this is not the case!
 
#2 The same question for winter.
 
#3 How does the logic work when ambient is at the borderline like in fall and spring.
#7 of 62
Re: Automatic climate control [whisper1] by targettuning
May 16, 2007 (12:23 pm)
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Replying to: whisper1 (May 16, 2007 4:47 am)

In regard to your "setpoint met" scenario in summer I believe the system keeps on running as usual because the setpoint is never truly met. Interior temperature is a fluid thing in the summer (well, in the winter too) because a car interior is not well insulated, has large glass areas that admit sunlight, bleed a small but definite amount of engine/exhaust heat into the interior. So the HVAC systems job is never done. In borderline situations there is a probable "off" cycle for the compressor until heat eventually builds to the set or desired temp. due to all the above..glass area etc.
#8 of 62
[help] A/C problem with 2004 sonata 2.7L by joshqc
Jun 11, 2007 (2:41 pm)
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i need help with my A/C. I recently changed the compressor because it stopped working and i went to a mechanic who found there was a leak in the compressor. but after the replacement i found the A/C is not as cold as before by saying that i mean i dont feel cold air but kind of "cool" air instead. I went back to the mechanic again thinking maybe there was not enough freon. And they checked and recharged the A/C but it is still the same. Now it's driving me crazy.
So what could be the possibility of this kind of problem? I dont want to go back to the same mechanic again because apparently he cant do any better. Your help would be really appreciated. thanks!
#9 of 62
2006 Hyundai Air Quality System by skeeter6
Jun 14, 2007 (9:54 am)
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The air quality control system on my Sonata , which is a part of the 2006 Sonata LX Auto Air Conditioning, has become very inconsistent It operated as describe in the manual for the first 10 months now will not switch to inside air when exposed to exaust fumes. Has anyone had this problem? My dealer has no idea on how to fix it. Hyundai has not help!
#10 of 62
Re: Automatic climate control [whisper1] by cabby
Jul 21, 2007 (8:46 pm)
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Replying to: whisper1 (May 02, 2007 8:23 pm)

I also have a Limited, and have found the climate control a bit confusing. I have been using the manual fan (did not press the A/C button) and inside of the car gets VERY cool...pretty sure the A/C is turned on even though it is not lit on the LCD. Confusing...
#11 of 62
Re: Automatic climate control [cabby] by craigbrooks
Jul 21, 2007 (8:55 pm)
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Replying to: cabby (Jul 21, 2007 8:46 pm)

There have been comments on how to "shut" off the auto AC but I can't remember exactly how it was done. I think you hold your arm out the window while hitting the panic button on the remote and trying to open the trunk at the same time....you get the jist. It can be done but is confusing. My 06 GLS has AC "on" and AC "off" quite simple. I like that.
#12 of 62
Re: Automatic climate control [cabby] by whisper1
Jul 23, 2007 (4:56 am)
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Replying to: cabby (Jul 21, 2007 8:46 pm)

If the Auto knob is pushed, the LCD displays "AUTO". Fan speed, recirculation, AC are controlled automatically. Activate any of these controls forces only that control to operate in manual mode. Ex: with LCD shown "AUTO", AC is ON as needed. Push the AC button, AC is always ON; push it again, AC is always OFF.
 
Yeah, it is a bit confusing.

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