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Old 26 Mar 2012, 09:01 pm
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Default What keeps my ac compressor cycling on and off when my ac is on and i have a 2007 honda accord.?

I have a 2007 honda accord and my ac keeps cycling on and off even when the ac is on and i still feel cool air.
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Old 26 Mar 2012, 09:32 pm
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The front of the A/C compressor has an attachment called a 'clutch'. It's the part that has a belt spinning on it. It's the job of the clutch to engage the compressor to do it's job. When the desired temperature is reached, all is fine. when the temperature starts to get colder, then the 'clutch' engages the compressor to stop. when the temperature returns to what it's supposed to be, the clutch again does it's magic. If you put the a/c control in the off position, then the compressor is disengaged. And when that happens, the belt on the clutch, even though it is still spinning the clutch, the clutch is not engaging. If you feel any air through the vents at this time, it's jus residual air.
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Old 26 Mar 2012, 09:46 pm
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If the AC is cycling on and off at a fast rate, you more than likely have a low freon charge. If it cycles on and stays on for a minute or 2 before shutting off, this is normal. The AC shuts off to keep the evaporator core on the inside of the car from freezing up.

When the AC is on and running, air is drawn into the intake of the HVAC unit. This air has moisture in it. As it passes through the cold evaporator, the moisture condenses on the evaporator and freezes. When too much moisture builds up, the AC will cycle off and this moisture melts and drains to the bottom of the HVAC case and drains out the bottom of the car (on really humid days, you see this as a puddle on the ground). Once the AC defrosts for a little bit, the AC cycles back on and the process repeats.
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