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Discussion Starter · #1 ·
Hi guys. I just noticed in my touring that once i turn on the AC, the ac compressor and auxillary fan run continuously even i set the thermostat to a higher setting (70F and up). I was expecting to hear the compressor clutch and aux fan to turn off and cycle. Ambient temp is 51F. Is the continuous runnung have something to do with the cold ambient temp and humdity inside the cabin? Any help would be appreciated before i go to the dealership.
 

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Based on what you posted it sounds like you turned on AC manually (instead of auto with a set temp). I believe it allows the AC to run with higher temps because it is used to defrost/dehumidify the interior.

In Auto, the compressor should only come on if you set a temp below ambient.
 

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The '16 Civic includes a new variable displacement compressor:

To help conserve energy, the system employs a new Variable Displacement Compressor (VDC). Unlike a conventional compressor which can only operate at 100-percent and must be switched on and off frequently to conserve fuel when the cooling load is relatively low, the VDC can vary its output based on the cooling needs, resulting in greater efficiency, reduced drag on the engine and smoother climate-control performance.
This is probably why you are experiencing what you are experiencing.
 

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I should add that it also probably runs the compressor when heating to assure a cold evaporator to dehumidify air and assure the glass doesn't fog.
 

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Discussion Starter · #5 ·
Yes. I did turn it on manually. I guess i was used to cars with no Auto setting. I will try setting it to Auto and will post my feedback in a bit. Appreciate it!

Based on what you posted it sounds like you turned on AC manually (instead of auto with a set temp). I believe it allows the AC to run with higher temps because it is used to defrost/dehumidify the interior.

In Auto, the compressor should only come on if you set a temp below ambient.
 

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Discussion Starter · #6 ·
This is very informative! Appreciate it :+1:

The '16 Civic includes a new variable displacement compressor:

To help conserve energy, the system employs a new Variable Displacement Compressor (VDC). Unlike a conventional compressor which can only operate at 100-percent and must be switched on and off frequently to conserve fuel when the cooling load is relatively low, the VDC can vary its output based on the cooling needs, resulting in greater efficiency, reduced drag on the engine and smoother climate-control performance.
This is probably why you are experiencing what you are experiencing.
 
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