Heater issues - 2005 Outback - Subaru Outback - Subaru Outback Forums
 
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post #1 of 9 (permalink) Old 12-06-2005, 11:11 AM Thread Starter
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Heater issues - 2005 Outback

My 2005 Outback, with auto climate control, provides too much initial heat on cold days. The computer heating profile seems too aggressive and provides max heat until the cabin is fully warmed. At that point it modulates itself and runs properly. Obviously getting this hot blast right in the face (if the system is allowed to do what it wants) is uncomfortable, and less than desirable. Other vehicles I have owned with the same type of auto climate control manage the process better. I can certainly go complain to the dealer, but first want to know if any other owners have this issue.
Thanks,
Richferg
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post #2 of 9 (permalink) Old 12-06-2005, 11:17 AM
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Ah, I see you've met HAL.

Do a board search for HAL (in the upper right hand corner) and you'll find endless discussion about the ACC (automatic climate control) with a mind of it's own.
Do it quick though, he's watching and he's not happy with you. Next time you get in the car and it won't start, don't be surprised to hear a gentle voice that says "I'm sorry Rich, but I can't let you do that."

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post #3 of 9 (permalink) Old 12-06-2005, 11:31 AM
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Actually, when it's decently cold out like it is today, my 05 XT goes full blast heat until long after the cabin is sufficiently warm. For example, my heat setting is 70 & it's probably over 80 before it will pull back the reins.

Something that should help you out though - HAL, or the ACC will only turn the controls manual one setting at a time. So, if you set your temps & hit auto, then adjust the fan manually, the rest of the system is still auto (temp control, AC use, vent setting) and you can set the fan to whatever you find most comfortable.

Alternatively, you could adjust something else like the vent setting to feet or defrost manually & let it try it's darnest to warm the car up quickly.

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post #4 of 9 (permalink) Old 12-06-2005, 10:31 PM
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Yep, been complaining about that for about a year. And then after it finally settles down it actually gets too cold. So I find myself lowering the temp setting to trigge it to settle down, then I have to increase it beyond the initial setting to keep the temperature I really want. the ACC is the single most infuriating feature of this car.

There are several issues with this ACC, but the main culprit behind this temperature overshoot is the poorly designed temp sensor. It relies on a ventury to flow air through the sensor, problem is when the air in the sensor is cold, the less dense warm air just doesn't flow.

Someone came up with a fix that you can find right .here

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post #5 of 9 (permalink) Old 12-06-2005, 10:55 PM Thread Starter
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Thanks to all of you. Those are really helpful responses and are most appreciated. I suspect I'll try reducing my dependence on the automatic features, and maybe investigate the venturi fan.
Richferg
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post #6 of 9 (permalink) Old 12-06-2005, 11:50 PM
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the problem is that inside temperature sensor does not "feel" what you feel, when surrounded by plastic, it is still cold, put your hand over it (I dont know where that sensor is in subie) for a minute and it will calm down, I used to do that on my pathfinder with auto AC.
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post #7 of 9 (permalink) Old 12-07-2005, 10:43 AM
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Has anyone tried the fix that Sly posted? If so did it make a difference in the performance of the system?

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post #8 of 9 (permalink) Old 02-25-2006, 11:00 PM
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one more thing.

How the HAL (pun intended) does the dual zone ACC work when there is only one temperature sensor in the cabin (on the drivers side?)

How does it work out the passanger side temp?
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post #9 of 9 (permalink) Old 02-26-2006, 02:42 PM
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Quote:
Originally posted by yobbo
How does it work out the passanger side temp?
It guesses. And actually, I think it's better at guessing the difference than actually calculating the cabin temp with the temp sensor it has.

When the Winds of Change blow hard enough, the most trivial of things can turn into deadly projectiles.
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