Heating - Temperature Adjustment

[Costjim]

Hi Everyone,

I am inquiring about the Lightning's Heating/Temperature Control.

I live in northern British Columbia, where the winter temperatures average -10 to -30 Celsius. I have noticed that when I lower the temperature setting from HI to 28, 24, 22, and 20 degrees, there is no difference in the temperature. The temperature intensity doesn't change until I set it to 18 degrees. Has anyone else experienced the consistent HI heat, even when lowering the temperature? Your thoughts are appreciated. Thank You.

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[Heliian]

Are you in auto mode?

Also, having a warm battery by preconditioning while on 240v will help too.

 

[Costjim]

Are you in auto mode?

Also, having a warm battery by preconditioning while on 240v will help too.

I always precondition the battery, and I never use Auto Mode.

 

[Maquis]

It’s the same for me. I get cooked unless I set to 66F or less. I just live with it.

 

[Costjim]

It’s the same for me. I get cooked unless I set to 66F or less. I just live with it.

The next time I am at the dealership, I will discuss this with them. I think it is a software issue.

 

[Firn]

I leave mine on Auto almost exclusively, and with that I can distinctly notice a difference between 68F, 70F, and 72F.

When you say "temperature intensity", what do you mean?
Understand that even with "Auto" not on, setting a temperature is defining the overall cabin temp, NOT the temp of the air coming out. It will adjust the fan speed, the air temp, and exit location, all to make you "feel" like it is at the set temp in the cabin.
Put simply, if you want to go from 18C to 22C, it can accomplish that by either raising the temperature of the air coming out, or by increasing the amount of air coming out at the same temp (which may be a very minor change in air volume). Both methods increase the BTUs entering the cabin and will raise the temperature of the cabin.

 

[Costjim]

I leave mine on Auto almost exclusively, and with that I can distinctly notice a difference between 68F, 70F, and 72F.

When you say "temperature intensity", what do you mean?
Understand that even with "Auto" not on, setting a temperature is defining the overall cabin temp, NOT the temp of the air coming out. It will adjust the fan speed, the air temp, and exit location, all to make you "feel" like it is at the set temp in the cabin.
Put simply, if you want to go from 18C to 22C, it can accomplish that by either raising the temperature of the air coming out, or by increasing the amount of air coming out at the same temp (which may be a very minor change in air volume). Both methods increase the BTUs entering the cabin and will raise the temperature of the cabin.

Thanks, @Firn. Those are Interesting points. When I say temperature intensity, I am referring to the temperature of the air coming out of the vent. With my F150 ICE, when I turn the heat down, the air temperature goes down. But with the Lightning, the air temperature stays high, which leads me to believe that the Lightning's heating core is still running high, leading to more battery consumption. I would assume that when you turn the temperature down and don't have it set to auto, the air temperature coming out of the vents will be lower.

I will try your suggestions.

 

[Firn]

Thanks, @Firn. Those are Interesting points. When I say temperature intensity, I am referring to the temperature of the air coming out of the vent. With my F150 ICE, when I turn the heat down, the air temperature goes down. But with the Lightning, the air temperature stays high, which leads me to believe that the Lightning's heating core is still running high, leading to more battery consumption. I would assume that when you turn the temperature down and don't have it set to auto, the air temperature coming out of the vents will be lower.

I will try your suggestions.

I do not believe that changing the temp control is in any way directly manipulating the temperature of the air coming out of the vents. Indirectly, probably, but not directly.

You don't blow 20C air to make the cabin feel 20C, you have to blow say 40C air. In actuality you have to blow a little 50C air, or a lot of 30C air, to make it feel 20C in the cabin.

In my previous cars manually manipulating one control would turn off "auto", but all the other controls would still run like they were on Auto unless you manually controlled them too. So change the location of the air would still allow the fan speed to be on Auto. Specifically set the fan speed to a low number and then try changing the temp, I bet you feel a difference then.

 

[TaxmanHog]

Do you allow the recirculation air to operate normally or do you manually close the damper (e-switch)?

Less incoming cool air might make it difficult for the HVAC to moderate the vent exit temperature.

 

[K6CCC]

First three weeks that I had my lightning, I was not overly happy with the heating (different reason). Tried switching to Auto and the difference is amazing. Massively better.

 

[FloridaMan655321]

I think you're looking for f150lightningforum.ca
That or the forums needs some 'AI' to adjust to normal imperial numbers so I can answer the question.

 

[Firn]

First three weeks that I had my lightning, I was not overly happy with the heating (different reason). Tried switching to Auto and the difference is amazing. Massively better.

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.

 

[Ragman]

Check your coolant, ours used to do this it went in for recalls and they needed to add 2 liters to the system. Haven't noticed it since though it's been at dealer most of time... Propower module needed replacing took a while for parts.

 

[RickLightning]

Like with a home furnace, temp setting doesn't make hotter air come out once you are already at the highest output.

Cabin is 65. You set heat on 75. Then you raise it to 78. No change in temp of air coming out.

With our Mach-E, 68 is barely warm enough. With the truck, 66 is the temp.

 

[Henry Ford]

Use Auto. Set the temperature you think will make you comfortable. If you are hot, lower the temperature a couple degrees. If you are cold, raise the temperature a couple degrees. The engineers figured this out so don't have to.

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