Air conditioning set to HI, not heating

[TaxmanHog]

I'm thinking software related!

What is your most recent OTA ?

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[Formerly]

What is your most recent OTA ?

The bluecruise 1.4 one. Had it since winter and heat worked fine

 

[Zprime29]

Are you using Auto or setting it manually? I've noticed that it will kick on the heat when using Auto without my hitting the button. On occasion, I wanted cool air and discovered to my dismay that it was on heat. Tapping off the heat took me off the Auto setting.

 

[Firn]

Are you using Auto or setting it manually? I've noticed that it will kick on the heat when using Auto without my hitting the button. On occasion, I wanted cool air and discovered to my dismay that it was on heat. Tapping off the heat took me off the Auto setting.

It was on heat, in that it was pushing warm air, or that the Heater indicator was lit?

The heater button on screen being lit does not indicate it is heating, just that it can. I expect disabling that and turning full hot (or just higher than outside temp) is the equivalent to straight outside air.

Old guy comment here but back in the day you would go full cold, but not push the AC button, to get outside air. This is likely the same, go full cold and disable AC, or full hot and disable heat, for the same effect.

 

[Zprime29]

It was on heat, in that it was pushing warm air, or that the Heater indicator was lit?

The heater button on screen being lit does not indicate it is heating, just that it can. I expect disabling that and turning full hot (or just higher than outside temp) is the equivalent to straight outside air.

Old guy comment here but back in the day you would go full cold, but not push the AC button, to get outside air. This is likely the same, go full cold and disable AC, or full hot and disable heat, for the same effect.

It wasn't blowing cold, but it wasn't hot either. That jives with your assessment. I believe it was mid 70's and with the sun out I needed cooler air.

 

[RickKeen]

I seem to recall once when I was trying to work from my truck in a parking lot back a couple of winters ago that the heat will not run unless the truck is actually in "running" mode. It would not heat in accessory mode - just runs the fan.

 

[Karlos]

The heater coming on uncommanded & unnecessarily is the biggest grip I have with both Lightnings & wife's 2024 Mach-e. Rolling along an car getting warmer, turn down the temp, no response & then find the Heat button on - grrrr. Even have this happening in Manual mode. Assine !

 

[Firn]

The heater coming on uncommanded & unnecessarily is the biggest grip I have with both Lightnings & wife's 2024 Mach-e. Rolling along an car getting warmer, turn down the temp, no response & then find the Heat button on - grrrr. Even have this happening in Manual mode. Assine !

Again, the heater button being on does not indicate that it is currently making heat.

Folks overthink this. Set the temp you want, it will do that. Too warm? Make it colder. Whatever light, icon, widget, or glowing thing doesnt make a difference, the temp does.

 

[Formerly]

It was on heat, in that it was pushing warm air, or that the Heater indicator was lit?

The heater button on screen being lit does not indicate it is heating, just that it can. I expect disabling that and turning full hot (or just higher than outside temp) is the equivalent to straight outside air.

Old guy comment here but back in the day you would go full cold, but not push the AC button, to get outside air. This is likely the same, go full cold and disable AC, or full hot and disable heat, for the same effect.

Interesting! Yes, I will test this and report back, thank you!

 

[Formerly]

I seem to recall once when I was trying to work from my truck in a parking lot back a couple of winters ago that the heat will not run unless the truck is actually in "running" mode. It would not heat in accessory mode - just runs the fan. (But it will run the A/C in accessory mode).

Same with the AC - I noticed this as well

 

[Formerly]

Are you using Auto or setting it manually? I've noticed that it will kick on the heat when using Auto without my hitting the button. On occasion, I wanted cool air and discovered to my dismay that it was on heat. Tapping off the heat took me off the Auto setting.

It wasn't on auto. Someone else mentioned to check if the actual heat selection was on in the venting options screen. I will check this variable and report back

 

[chl]

Seems strange Ford set it up this way but you have to hit the Heat button on the page where you set which vent you want, defrost, floor, etc. if it is not highlighted. Last winter every once in a while I had to turn on the heat by pushing this button when I didn't have any heat. Give this a try.

Exactly.
I had the same thing happen, not sure of the sequence but I might have used the defroster one day and then the next tried the heat and nothing, had to look around the menu to find that the heat button icon was deselected, selected it and then the heat was back.

Strange that there are real buttons for heat yet also a menu button - go figure.

 

[Formerly]

Update:

So it is related to the heat button as one might suspect. The heat option that resides in the vent options menu somehow is becoming deselected and I haven't discovered a pattern or clue why this is a thing all of a sudden and why it wasn't a thing previously.

The heat works thankfully, I just have to check that it is selected when I realize the heat isn't on.
So there's a definitive ac on/off and a definitive heat on/off.

 

[chl]

Update:

So it is related to the heat button as one might suspect. The heat option that resides in the vent options menu somehow is becoming deselected and I haven't discovered a pattern or clue why this is a thing all of a sudden and why it wasn't a thing previously.

The heat works thankfully, I just have to check that it is selected when I realize the heat isn't on.
So there's a definitive ac on/off and a definitive heat on/off.

same thing happened to me and I made the same discovery - go figure

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