Prius C :: Windows Fogged Up / Fan Moved To Highest Setting When Defrost On
Aug 22, 2012
I thought I wouldn't have need of the defrost for several months yet, but today we had unusually cold rain and my windows soon fogged up. The fan (not a/c) was already running at a very low setting (one or two clicks only) when I depressed the defrost button. Roughly 15 seconds later, it was like a hurricane in the cabin! The fan moved to the highest setting all by itself. This did clear the windshield in seconds, but it was a bit disconcerting. This phenomenon repeated itself all three times that I engaged the defrost button. Is the defrost supposed to do that? I swear, the sudden change startled me so much, I hit my head on the ceiling of the cabin...
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I have a Gen II problem with my air conditioning. The air conditioning works; however, the air is stuck blowing in the defrost setting. I think there is some problem with the Air Mix Servo. In my non Prius cars they called the part a blend door actuator. Long story short, the air will not move to the front vents or anywhere else. That said, I can't hear the servo moving at all.
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Installing STs on my mk6 tomorrow. Doing it in a steep driveway. want to be on the highest setting when I leave. regular v1 st coil over.
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I drive a 2012 E, and this is not about mine. It's a buddy whom has a 2013 or 2014 (I think all of the fan hardware is identical). His fan stopped working on the three lowest settings, but still blows fine on the highest setting.
Perhaps resistors knock the current down for the lower settings and they have failed? Just a wild guess....
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So compared to my old Jetta, these wipers are "fairly" slow at the highest seeting, and in a down poor at 70 mph they do not clear the windshield fast enough.
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So I have a 2005 GMC Sierra 1500 pickup that is in great condition. Recently, I have noticed that in the mornings on my way to work the blower fan would not run on the highest setting. After a while of driving, the highest setting would then work. This happened for about two weeks. Now, the blower will not turn on at all on any setting. Thought it might a simple fuse, but that looks fine. Should I take it to the shop? Could it be the blower motor that needs to be replaced?
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I have a 2007 Nissan Versa and my AC will only run on the highest setting. The dealership suggested that the whole panel with AC dials needed to be replaced, they did say they were not sure this was the problem. In doing some research on the web I did see discussion regarding a Nissan Altima that had what sound like a similar problem and the fix was a part called the "blower resistor" which was much cheaper and could be fixed at home.
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My A/C has been making a loud noise for a couple months now ,only when I put the A/C on the highest setting. I was LONG overdue for a cabin air filter change so I bought a new one and while I was down there I looked inside the blower motor and here's what I saw... It is now blowing fine and not making a noise . Sprayed some Ozium New Car spray on the new cabin air filter and my car is smelling great now !
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2002 Dodge Ram 3500 van (engine unknown, but I think it doesn't matter). Blower operate only at highest speed setting. OK, that's the classic symptom of a failed resistor. Replacements are readily available at chain parts stores.
Where is the resistor located? This video shows me for a 2002 Ram 1500 van. Will it be the same on the 3500?
I've learned here that sometimes resistor failure results from bearings going bad in the blower, causing excessive current draw. Is there a way to test that other than with an ammeter? What's the correct current?
2a. If the blower motor is going bad, is that something we'll be able to replace ourselves? (Yes, I should tell them to get a Haynes or Chilton.) I don't like the idea of taking off dashboard panels.
2b. Is there any other "prime cause" I should look for if the blower motor seems OK?
Are there any other parts (other than the switch) whose failure would also give that symptom?
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My HVAC blower switch only works when I put it on 5 (the highest setting). What needs to be replaced (besides the whole truck)?
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My 2010 Expedition Limited AC seems to be stuck in the highest fan speed setting. Changing the setting on the panel control do nothing to change the speed. But you can adjust the temp and it will respond. It is a dual control unit. When I try to turn the system to off completely it will go to what I believe is the vents and stay on full blast. If I turn the truck off and on again the whole system remains off until I turn it on again. The only way to turn it completely off is to turn it to off mode and turn the truck off.
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My AC is not working on any setting but defrost. Warm air blows out on the reg AC settings, but if I turn it to defrost, chilly air comes out.
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I have noticed if I turn on the AC and set it to any front defrost setting (either full front defrost or mix front defrost and lower vents) and turn up the heat that when I turn it on the next day there is a horrible smell. If I run the AC and turn the temperature up there is no smell so long as I don't use any setting using the front defrost. The smell is bad enough that I have to open the windows to air out the car. After a few minutes the smell goes away.
The car is an '06 XL. I noticed it intermittently when I first got it two years ago, but this winter the smell happens every time I use the AC on any front defrost mode. My guess is the heating element under the front windshield. If I turn on the heat without the AC on any front defrost setting I do not have the problem.
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1994 f150. When i use the max a/c setting, sometimes after a few minutes I hear a little thud and then all the air starts coming out of the defrost vents. This doesn't happen when using the regular a/c setting.
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My wife's '02 Explorer has developed an issue with the heat/AC. As far as I can tell, the heat is hot when it's supposed to be hot, and the AC is cold when it's supposed to be cold. But, the problem is that everything only blows out through the defrost vents, no matter what setting it is on.
I know there are other threads on this type of subject, and I have read a lot of them. I thought I had identified that actuator gizmo as the culprit, but the more I read, it didn't seem like the symptoms for that issue are exactly like mine. I want to try and fix it myself, and I'd love to take the time to read everything on the subject, but warmer weather is here and my wife wants it fixed yesterday!
This problem reminds me of the time the vacuum pump went out on my F-350 and the defrost vents were all that would work. I wish this problem would be as easy to fix as that was.
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I have a 2003 Jeep Grand Cherokee with about 240000 miles on the clock. Words cannot describe how impressed I am by this car. However, yesterday I noticed that the selector switch where one chooses to direct the air output has failed me. It seems to be stuck in the windshield defrost setting, unable to redirect the airflow to anywhere else. I am however still able to control the temperature as well as A/C settings. The switch felt strangely 'limp' almost as though it is no longer connected to whatever engineering or witchcraft it is attached to behind the control panel. What are your thoughts on this? Could it be as simple as some mechanical linkage that has snapped off? Just to recap: blower motor, heat and A/C are not affected by this.
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My instrument panel glass stays fogged up for weeks after a rain. Shouldn't the dealer fix this with after only 14 months and under 3,000 miles ?
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We're new here and new Prius owners. We bought our '10 Prius IV in December. We absolutely love the car. Last week I went out to get in the car and noticed the dash instrument panel ( where it displays the mileage in time increments ) is all fogged up. How to un fog it?
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Seems below 20 my car cannot defrost the windows or heat the cabin. It has been 0-10 the last couple days here in SE WI. The coolant temp gauge is straight up right in the middle. Some how coolant isn't flowing through the heater core. Could this be a design failure? It doesn't seem to matter what settings are on dash. I have tried with ac on and off, recirculation on and off, full defrost on, fan on all speeds, have also tried a combination of cracked windows open.
Are other people experiencing this as well? Is a call to the dealer in order?
For ref car is 2014 tdi se with 34,000miles.
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My windows do not defrost. Blows hot air and seems to blow out defrost vents ok. When I bought the truck last winter no problem untiL A /C would not cool cab in summer. Now it's winter and no defrost.. I have takin into dealer and they said compressor is kicking on ok but still no moisture leaves the cab. It is dry here in Kansas so when we get rain I will have to sponge the windows.
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I've had every lexus model (besides the LFA) and I just purchased another GS 350. Now I know I know....dealership can set the settings for my unlock button to automatically set my windows down and sunroof back. But as we all know going to the dealership for anything is so annoying. That being said.... How to set/program it?
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