Ford A/C :: 2010 Expedition - Blower Motor Not Turning Off / Stuck In Highest Fan Speed Setting
Jul 10, 2017
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 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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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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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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Thought for sure that would fix my fan speed, but nope. Replaced blower control module, Still only blows on the highest setting. Didn't try running it on auto, but that's what it did on manually turning the speed up. What else could it be?
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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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My blower fan will not run on setting 1. on 2 3 and 4 it will work but not on the lowest setting. I replaced the relay and it still doesn't work. I have a 2010 f150 with the 2v 4.6 .....
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What is the testing procedures for the blower motor controller on my 2009 150 Lariat. In the old days it was called the resistor but now it is computer controlled for the dual climate control. My fan is stuck on high, the fan switch does work(the bars on the display change when I push the fan speed button). The climate control works also, just blasts you with air and the temp is changing a lot due to the fact of the fan on High. I am 99% sure it is the blower motor controller, but I would like to test the controller.
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I have an '02 F150 XL. 200k miles. My a/c blows cold, and I have every fan speed, but it just doesn't blow very hard. I replaced the blower motor thinking that would work, but that did nothing. I've been told to clean the evaporator core, but I don't know where that is. How to do that, as well as any other part causing the problem.
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I have google it looked all over was told it was under the hood next to the fan even shown a photo when I went under the hood right were the resistor was in the photo there was a long black box about 4 inches long and 2 inches wide. looked nothing like the photo.
So I went back on line and read that its above the passengers feet you take a few screws off after you take the glove box off and it should be there. Well after taking 8 screws off I find nothing but a coil behind there. Nothing that looked like a resistor.
2006 f350 diesel?
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I bought my youngest daughter a used 2009 Ford Escape (out of warranty) a week ago. Manual HVAC controls, 3.0 V6, AWD, 73K miles. The HVAC blower motor do not seem to move any air on speed 1 and 2. However speeds 3 and 4 appear to operate normally. Speed 4 noticeably puts out more volume of air then 3. Each 3 and 4 operator what seems to be normal speeds for their setting.
I would normally suspect resistor but my experience is usually that you have all or nothing not it's partially working like this is. I don't mind throwing a new resistor in there and trying it but I rather come up with a better way of troubleshooting it then throw parts at it.
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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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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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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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I recently bought a 96 ranger.I noticed the fan did not work but for high. I search the internet and found how to remove it and discovered a mouse nest(village) which basically took over the housing where the evaportor core,blower motor resides. I bought a chilton but cannot remove the housing around the core so I cleaned it the best I could(air compressor and vacuum and disinfectant)...
I had to buy a new blower motor and resistor. However, I cannot find the hose that attached to the blower motor?-mouse had chewed a hole in the one- I've looked and found serveral differents names for it but seems I cannot find it at my local parts store.
My question is- is this intake hose? vent hose? I'm guessing I will have to go to dealer or, if I know the name I can look it up in a salvage yard?
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I have an 02 Santa Fe and last night while driving the fan would not turn off. It also started switching speed by itself.
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Have a 2004 F-250 and blower motor speed 3 is not working..replaced resistor pack with Motorcraft part and everything works except position 3 ....
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Currently My AC / Heat blower motor operates but, speed 1 and 2 are the same, 3 and 4 are fine. I replaced the blower rheostat that is located on the firewall, but still no difference in fan speed.. A few years ago the blower only operated on Hi and the rheostat was the problem then.
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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 and 07 F250 and the #2 speed for the blower motor don't work (hasn't since I bought it) I read that the most common cause of this is the resistor under the hood on the firewall so I replaced that and still no 2nd speed??? Where I look next? Motor itself maybe?
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