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Old 06-07-2013, 03:26 PM   #1
turnbull's Avatar
Join Date: Jan 2013
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question about defrost and compressor

Is there any way to run the defrost without the compressor? Right now I just turn the defrost on when I need it and then shut it off once the window is clear, but that is just annoying to keep switching it on and off. And sometimes I forget to turn it off and my compressor is running for the whole trip. If I run hot air through the defrost, does the compressor still run?

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Old 06-07-2013, 03:35 PM   #2
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Location: Lakeland FL and Hooversville PA
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Compressor runs when the defrost is on, hot or cold air. It helps remove the moisture from the air blowing on the glass.

I guess you could install a switch inline to the compressor, but then you'd need to remember to turn it on...

97 Sahara, 74 Renegade, 72 CJ5, 55 Willy's (the Beast) Boss 302, 6:34 gearing, Bose 901 speakers.
God I miss that Jeep. Forgot the kinda Jeep, 80 SX4.
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Old 06-07-2013, 04:46 PM   #3
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Also if you run without the compressor the defrost will have to run hot air to get results and that can be a bitch when it's hot out. The other reason to run the compressor is so it is exercised during the colder months when it would not be normally used.
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