Volvo XC70 This wagon/SUV crossover offers the capabilities of an SUV without SUV size.

a/c fan turns on by itself

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Old Sep 14, 2011 | 12:58 PM
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Default a/c fan turns on by itself

my a/c has turned itself on WITHOUT THE KEY IN THE IGNITION. this has happened 3-4 times now. i have come down to my car and its just blowing. even if i turn the a/c off before i exit the car it has done it. then i have to turn it on and back off to get it to stop. any ideas guys? 2002 cross country with 150k on the engine.
 
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Old Sep 16, 2011 | 04:42 AM
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bump. nobody here has any idea?
 
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Old Sep 16, 2011 | 10:49 AM
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you mean the blower is turning, properly the heat element is wrong or something in the ccu is wrong.
 
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Old Sep 17, 2011 | 09:00 AM
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this has been discussed bfr and I even think its mentioned in the owners manual!
Mine does it and its meant to dry out the evap coil!
 
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Old Sep 17, 2011 | 04:21 PM
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that makes a lot of sense! it usually does it when its really hot a humid. thx.
 
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Old Sep 18, 2011 | 07:01 AM
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its a little unsettling and I worry if the battery ever started to get week if would drain beyond the ability to start it, but i guess we would would have to hope its smarter than that LOL!
 
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Old Oct 7, 2011 | 06:19 PM
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It was designed that way, it is meant to turn on itself after some driving to relieve the A/C from stinking. it runs for a few minutes then turns off itself again. I was worried too once then found out.
 
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