A/C when it's 33?

Cyndy · 11-12-2012, 06:45 PM

My '12 WRX has picked up the habit of turning the A/C on when it should be warming. Has this happened to anyone else? When I want to turn the heat on, I usually put the first two dials on Auto (fan and which vent) and then set the third dial in the upper 60s. At first it starts to warm up but minutes later, will switch to A/C.

Eventually I'll take it to a shop, but I was curious if this is a known issue.

Thanks, and bbrrr!

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Scatman03 · 11-12-2012, 07:19 PM

The A/C compressor cycles when you have have the defrost on, standard on just about every car in the world.

sense of nature · 11-12-2012, 07:37 PM

Quote:

Originally Posted by Scatman03

The A/C compressor cycles when you have have the defrost on, standard on just about every car in the world.

Yupyup

Cyndy · 11-12-2012, 07:44 PM

Seriously?! Crazy. I've never noticed the A/C light come on in any of my vehicles, when the heat is on.

Thanks for saving me the embarrassment of taking it in somewhere! Lol.

hoffmanEstates · 11-12-2012, 08:12 PM

This happens in. My jeep when I do auto climate control. It has a sensor inside and that's how it reads inside temp so if its to "warm" it turns a.c on. If you have the nob on window icon then.yes a.c will turn on. Try running heat in manual mode not auto. Or dealer can further more explain if ya stop In.

Cyndy · 11-12-2012, 08:56 PM

^Thank you.

tooocool49723 · 11-16-2012, 12:39 PM

The AC acts as a dehumidifier when it's cold out. That's why it gets turned on. You want to hit your fogged up windows with warm, DRY, air to defrost-defog them.

That's why you can see your breath when you breathe on a cold window: water molecules in your breath. With no AC, your defroster would do the same thing, and you wouldn't be able to see.

Well ok, after a while, it heats up the glass in the window, and you can see, but it takes a lot longer.

<-hasn't had AC in years.

AWD Freak · 11-16-2012, 02:17 PM

I asked my dealer when I got my 11 and he said leave it always set to auto for the first 2, set the temp what ever you like and it will never fog up like the older ones. And he's right, never had it fog up while driving ever.

scobaru · 11-16-2012, 03:40 PM

its nice having the AC on on those cold humid days because you'll get nice dry warm air instead of it feeling sticky.

Cyndy · 11-16-2012, 06:54 PM

It makes sense now but I had no idea...

11-12-2012, 06:45 PM	#1
Cyndy Scooby Newbie Member#: 301689 Join Date: Nov 2011 Chapter/Region: MWSOC Location: Channel Lake Vehicle: 2012 WRX DGM	A/C when it's 33? My '12 WRX has picked up the habit of turning the A/C on when it should be warming. Has this happened to anyone else? When I want to turn the heat on, I usually put the first two dials on Auto (fan and which vent) and then set the third dial in the upper 60s. At first it starts to warm up but minutes later, will switch to A/C. Eventually I'll take it to a shop, but I was curious if this is a known issue. Thanks, and bbrrr! * Registered users of the site do not see these ads.

11-12-2012, 08:12 PM	#5
hoffmanEstates Scooby Guru Member#: 122043 Join Date: Aug 2006 Chapter/Region: MWSOC Location: aurora Vehicle: 04 wagonier psm	This happens in. My jeep when I do auto climate control. It has a sensor inside and that's how it reads inside temp so if its to "warm" it turns a.c on. If you have the nob on window icon then.yes a.c will turn on. Try running heat in manual mode not auto. Or dealer can further more explain if ya stop In. Last edited by hoffmanEstates; 11-12-2012 at 09:46 PM.

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11-12-2012, 07:19 PM	#2
Scatman03 Scooby Specialist Member#: 228016 Join Date: Oct 2009 Chapter/Region: MWSOC Location: Kewaskum, WI Vehicle: 2003 WRB WRX Clark tuned	The A/C compressor cycles when you have have the defrost on, standard on just about every car in the world.

11-12-2012, 07:44 PM	#4
Cyndy Scooby Newbie Member#: 301689 Join Date: Nov 2011 Chapter/Region: MWSOC Location: Channel Lake Vehicle: 2012 WRX DGM	Seriously?! Crazy. I've never noticed the A/C light come on in any of my vehicles, when the heat is on. Thanks for saving me the embarrassment of taking it in somewhere! Lol.

11-12-2012, 08:56 PM	#6
Cyndy Scooby Newbie Member#: 301689 Join Date: Nov 2011 Chapter/Region: MWSOC Location: Channel Lake Vehicle: 2012 WRX DGM	^Thank you.

11-16-2012, 12:39 PM	#7
tooocool49723 Scooby Specialist Member#: 67127 Join Date: Jul 2004 Chapter/Region: MWSOC Location: Belleville, MI Vehicle: 3.3 I <3/h8 my GF3 1.8-2.5-2.2-2.5-2.2-3.3	The AC acts as a dehumidifier when it's cold out. That's why it gets turned on. You want to hit your fogged up windows with warm, *DRY*, air to defrost-defog them. That's why you can see your breath when you breathe on a cold window: water molecules in your breath. With no AC, your defroster would do the same thing, and you wouldn't be able to see. Well ok, after a while, it heats up the glass in the window, and you can see, but it takes a lot longer. <-hasn't had AC in years.

11-16-2012, 02:17 PM	#8
AWD Freak Scooby Newbie Member#: 262593 Join Date: Oct 2010 Chapter/Region: MWSOC Vehicle: 2011 SWP STI Limited	I asked my dealer when I got my 11 and he said leave it always set to auto for the first 2, set the temp what ever you like and it will never fog up like the older ones. And he's right, never had it fog up while driving ever.

11-16-2012, 03:40 PM	#9
scobaru Scooby Guru Member#: 31345 Join Date: Dec 2002 Chapter/Region: MWSOC Location: Wisconsin Vehicle: 05 LGT, GC8, NA blue, white, blue	its nice having the AC on on those cold humid days because you'll get nice dry warm air instead of it feeling sticky.

11-16-2012, 06:54 PM	#10
Cyndy Scooby Newbie Member#: 301689 Join Date: Nov 2011 Chapter/Region: MWSOC Location: Channel Lake Vehicle: 2012 WRX DGM	It makes sense now but I had no idea...