Why is that my a/c compressor keep turning on and my a/c is off everytime I use my fan without a/c and also my heater

Asked by dbestone Dec 04, 2012 at 12:04 AM about the 2004 Nissan Sentra 1.8

Question type: Maintenance & Repair

5 Answers
465

jtolfree answered 11 years ago

IDK thats strange because i took the compressor off of my car and my fan and heater works just fine. the car im talking about is a 1991 Dodge Colt GL. It is also imported.

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1,175

Jason answered 11 years ago

I don't know about the heater, but there are times when I hear the air compressor kick on when I just turn on the blower in my '01 Frontier. But this always happens when it's kinda cold (below 50 degrees F). If I hit the A/C button, the compressor picks up. So I'm not sure, but I wouldn't worry about it...especially if it's not hurting your gas mileage.

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16,945

Robert answered 11 years ago

the a/c comes on if you have the heater in defrost mode to dehumidify the air coming from the vents.

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145

James answered 11 years ago

There's a way to eliminate this, if you want instructions let me know.

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60

Eric answered 11 years ago

HI JAMES . HOW CAN, I ELIMINATE THIS SO THE AC DO NOT GO ON ALL THE TIME THANKS

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