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AC turns on when hot air is pointed to floor

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Old 10-19-2017, 10:40 PM
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AC turns on when hot air is pointed to floor

Hi team,

So this morning I was commuting to work and temperature was cold.
Turned hot air on with direction to floor.
The I heard the AC compressor turning on...
Funny enough, AC button was off and led is working.
And this seems to only happen when I'm pointing airflow to floor.

Turn heating off, AC turns off.
Turn heating on, compressor turns on again.
Change airflow direction to floor/front, AC turns off.

Is this normal?
Anyone has any idea?

Thanks.
Old 10-20-2017, 08:32 AM
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I know that if you put your car on either floor/defrost or just straight defrost that your AC compressor will kick on to dehumidify the air else you would get foggy windows. The AC compressor also automatically comes on if you have recirculation enabled. However, if you have the selector on feet only and the recirculation is off I don't think your AC should be kicking on but I am not for certain.
Old 10-20-2017, 08:40 AM
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Agree with you: these are the standard conditions that I'm aware of. My rav4 does the same.
Lets hope someone else can also confirm this.

Thanks.
Old 10-20-2017, 10:13 AM
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If you have it directly pointing at floor icon it's just getting into the defrost. Try turning on the recirc which it won't if the defrost is on, then turn the selector one notch to the left and try again.

At least on mine if the selector is directly at the feet icon it will kick on the defrost, one click back the defrost shuts off.
Old 11-03-2017, 07:21 PM
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If Ur on either the defrost or defrost vent , ur a.c. will turn on. Its so the air blowing in ur window is dry
Old 11-04-2017, 10:15 AM
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Yes, I know this. But what configuration activates the defrost? Pointing air to feet only does that? I thought defrost was only when pointing to windshield.
Old 11-04-2017, 12:27 PM
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The last 2 settings that have the defrost symble are the only ones that should




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