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Heating - Temperature Adjustment

Maquis

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Like with a home furnace, temp setting doesn't make hotter air come out once you are already at the highest output.
I’ve been telling my wife this for 40 years. 😆
She‘s still not convinced.
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Timeless Epoch

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My 2012 Lariat and 2017 Platinum F150 were always rock solid with the Auto Temp setting. I pretty much them both on 70 all year and it took care of everything.

I did notice on cold days, my Lightening it always seems to blow cold (like AC cold, not just unheated) out of the dash vents for the first 10 minutes, unless I crank the temperature above 75F. Things seem to return to normal and 70-72F is a reasonable setting after about 10 min.

Everything is left to Auto medium.
 

Wendy

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Everyone is welcome here, whether you talk C or F. Frankly, we should have gone to Metric when they started teaching it in the US in school in the 60s. Why do we need to think about 12-per or 16-per or how many ounces a tablespoon of water weighs at 32 degrees?

I always wonder about my friend who jumps in the car and either turns it to 90' or 60' depending upon whether he wants to get warmer or cooler. As noted above your furnace raises the temperature of the air by (let's say 20') and pumps out that air until the ambient temperature reaches what you have set it to. You don't really want it to be 90, you just want to warm up. Set it at 70 and it will stop when it reaches that temp. It will push the warmest air possible until it gets you to where you have asked to be.
 

GoodSam

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Auto is great. It's like my house, set a temp and don't think about it anymore. This is close to the best auto system I have had.
Auto does not seem to function that well for me. I often need to set the temperature to above (77F) or below (68F) to get ~72F that I like, depending on outside temperature.

I also wish that the three fan speeds available in Auto would correspond to the fan speed range available when in Manual fan control, that is, Manual fan speed seems to have maybe 7 speeds and the Manual top speed is much more powerful than the top speed in Auto.
 

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TaxmanHog

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I also wish that the three fan speeds available in Auto would correspond to the fan speed range available when in Manual fan control, that is, Manual fan speed seems to have maybe 7 speeds and the Manual top speed is much more powerful than the top speed in Auto.
I find that the speed is more aggressive (faster on III) when the cabin temperature and desired temperature are far apart, be it cold or hot season, as the disparity decreases the fan rate automatically slows to a minimum rate.
 

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And I think the air flow to the window side vents is too weak compared to the center vents, but maybe Ford has determined that the HVAC works best that way. I think adding heat blocking ceramic coatings to the windows helps a bunch to alleviate the need for window air flow. However, I am still not satisfied with the operation of the HVAC.

When not on Auto, is the system still trying to match the set temperatures? I interpreted some of the remarks that that may be the case, altho' that would not seem to make sense.
 

TaxmanHog

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When not on Auto, is the system still trying to match the set temperatures? I interpreted some of the remarks that that may be the case, altho' that would not seem to make sense.
I think the temperature is still moderated by activating the PTC heat or AC cycle depending on the situation, you're just getting more or less air flow according to how you manage the fan speed and outlet selection.
 

Firn

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When not on Auto, is the system still trying to match the set temperatures? I interpreted some of the remarks that that may be the case, altho' that would not seem to make sense.
Think of it as Auto, and Semi-Auto.

If you set one specific item manually the system is no longer fully automatic, but it is not completely manual either. If you manually change the air location from floor to dash vents, you likely still want it to manage temp. If you did not specifically set a fan speed the fan speed is still automatic.

If you set an item manually, that one item will stay there, however all others will still be managed automatically.
 

Altivec

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The problem I am having with keeping the heating on auto on cold days is window fog up. Yes... I have the A/C on. I've had numerous F150's and when on auto, a tiny bit of air was always directed to the windshield and side windows. That prevented things from fogging up. In the lightning, once the cabin heats up in auto, the air gets directed to the floor and completely shuts off the defroster. Every 5-10 minutes, I need to switch the max defrost and then switch back to auto so I don't roast. As I said, never experienced this in any other F150.
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