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A/C running with car turned off

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Old 07-11-2007, 08:56 AM
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Default A/C running with car turned off

Hi. I have a 2001 V70 (purchased in Feb) and have had 3 occasions where after turning the car off, the fan and A/C continue to run inside the car. The last two instances, I know that the fan and A/C were not running when I turned the car off, but I have returned to the car an hour later to find the fan and A/C blowing inside the car. In all the cases it has been very hot outside and the engine cooling fan has also been running after I turn the car off. I searched the forum and could not find any other instances of this malfunction. Has anybody heard of this before?
 
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Old 07-11-2007, 09:18 AM
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Default RE: A/C running with car turned off

Hi bos,

I've seen this mentioned around a few times and the common response is that the fan continues to run after the car is off in order to remove condensation from the evaporator (reducing the opportunity for mold/mildew to grow on the evaporator).

As far as I know, it's nothing to be concerned about - I've seen it happen in my '99 V70 as well.
 
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Old 07-11-2007, 11:39 AM
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Default RE: A/C running with car turned off

That's my understaning also, but I've never noticed than happening on my 850's or my 98 V70.
 
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Old 07-11-2007, 12:12 PM
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Default RE: A/C running with car turned off

Page 43 of the Owner's Manual:

Passenger compartment blower
Approximately 50 minutes after the ignition is turned off, the blower may come on automatically, and run for five minutes, to remove condensation in the A/C evaporator.
 
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Old 07-11-2007, 09:10 PM
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Default RE: A/C running with car turned off

You're supposed to read that? [sm=goodidea.gif]

Thanks for the clarification.
 
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Old 07-12-2007, 09:35 AM
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Default RE: A/C running with car turned off

Thanks for the useful info! I will keep an eye on it to make sure that it runs for only 5 minutes. When it happened on Monday, it seemed that the compressor was running as well, since it was nice and cool in the car when I climbed in. If it was just the blower then I would have expected it to be blowing hot outside air. I wouldn't think that the compressor should run as well.
 
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Old 07-19-2007, 03:10 PM
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Default RE: A/C running with car turned off

Mine runs for hours and hours, sometimes overnight. No battery problems, and the dealer isn't concerned, so I guess I'm not either.

Geoff
 
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