Robert Burke Posted August 2, 2011 Report Share Posted August 2, 2011 I drive with the windshield air on, as that is the only way to get filtered air into the cabin. I'm wondering if this kicks in a dehumidifier, too? When I park and get back inside, I notice a puddle of water on the ground, where the car's engine was. Where did it come from and why? If you know, drop me a line. Thanks Quote Link to comment Share on other sites More sharing options...
flyerjmr33 Posted August 2, 2011 Report Share Posted August 2, 2011 I drive with the windshield air on, as that is the only way to get filtered air into the cabin. I'm wondering if this kicks in a dehumidifier, too? When I park and get back inside, I notice a puddle of water on the ground, where the car's engine was. Where did it come from and why? If you know, drop me a line. Thanks Windshield air on will usually have the a/c compressor running when the temperature is above 50 degrees so, the water you see is condensation from your evaporator. A normal thing. Quote Link to comment Share on other sites More sharing options...
Robert Burke Posted August 2, 2011 Author Report Share Posted August 2, 2011 Windshield air on will usually have the a/c compressor running when the temperature is above 50 degrees so, the water you see is condensation from your evaporator. A normal thing. Quote Link to comment Share on other sites More sharing options...
Robert Burke Posted August 2, 2011 Author Report Share Posted August 2, 2011 Thanks! I don't drive with the A/C on, just the wind shield air/fan speed to blow in air from the outside, using the inside wind shield vents. They say this is the ONLY WAY you can get filtered air into the cabin. ?? I find it almost as cool as using the A/C. But, am I using a dehumidifier, with just the outside air on and no A/C? ??? Quote Link to comment Share on other sites More sharing options...
Robert Burke Posted August 2, 2011 Author Report Share Posted August 2, 2011 Is that where the water puddle is coming from? The dehumidifier? Quote Link to comment Share on other sites More sharing options...
Robert Burke Posted August 2, 2011 Author Report Share Posted August 2, 2011 Sorry, I meant with nothing on but the defrost and fan speed. DEFROST, the little wind shield icon in the top left position on the center touch buttons…. Quote Link to comment Share on other sites More sharing options...
11Edge Posted August 2, 2011 Report Share Posted August 2, 2011 Thanks! I don't drive with the A/C on, just the wind shield air/fan speed to blow in air from the outside, using the inside wind shield vents. They say this is the ONLY WAY you can get filtered air into the cabin. ?? I find it almost as cool as using the A/C. But, am I using a dehumidifier, with just the outside air on and no A/C? ??? Who said you can only get filtered air thru the defrost setting? If the a/c is on you get filtered air. As already said, if the defroster is on the a/c comes on above a certain outside temp. Your a/c is running to cause the condensation. There is no humidifier. It is normal condensation when warm/hot humid air hits a cold surface. Like the sweat on a glass of ice water or tea. Quote Link to comment Share on other sites More sharing options...
Robert Burke Posted August 2, 2011 Author Report Share Posted August 2, 2011 Who said you can only get filtered air thru the defrost setting? If the a/c is on you get filtered air. As already said, if the defroster is on the a/c comes on above a certain outside temp. Your a/c is running to cause the condensation. There is no humidifier. It is normal condensation when warm/hot humid air hits a cold surface. Like the sweat on a glass of ice water or tea. Quote Link to comment Share on other sites More sharing options...
Robert Burke Posted August 2, 2011 Author Report Share Posted August 2, 2011 Well, if what you say is true, wouldn't A/C light come on? Just the defrost and fan lights are lit. Would I hear the compressor if I opened the hood and listen? Outside temp about 70, temp setting on LOW. I think his car has a dehumidifier? Quote Link to comment Share on other sites More sharing options...
Robert Burke Posted August 2, 2011 Author Report Share Posted August 2, 2011 Most modern cars do have a dehumidifier, to take the moisture out. On my previous car, a Jeep Commander, I ran the dehumidifier during summer, but kept the A/C turned off and it blew out cool air. Saved on gas. It takes in outside moist air, sucks the moisture out and then blows in cold air. Wish I had a parts manual, but they cost big bucks. Quote Link to comment Share on other sites More sharing options...
cal3thousand Posted August 2, 2011 Report Share Posted August 2, 2011 Most modern cars do have a dehumidifier, to take the moisture out. On my previous car, a Jeep Commander, I ran the dehumidifier during summer, but kept the A/C turned off and it blew out cool air. Saved on gas. It takes in outside moist air, sucks the moisture out and then blows in cold air. Wish I had a parts manual, but they cost big bucks. Just run the fan with the A/C button off. Also, if you are running the DEFROST, some cars seem to kick on the A/C at the same time so you get water from the evaporator drain. Quote Link to comment Share on other sites More sharing options...
akirby Posted August 3, 2011 Report Share Posted August 3, 2011 The A/C IS the dehumidifier. It cools the incoming air which reduces it's ability to hold water so it condenses and that's the puddle you see. Just like a cold glass on a hot humid day or the condensation from your home air conditioner. Quote Link to comment Share on other sites More sharing options...
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