dbsb3233
Well-Known Member
- First Name
- TimCO
- Joined
- Dec 30, 2019
- Threads
- 54
- Messages
- 9,299
- Reaction score
- 10,814
- Location
- Colorado, USA
- Vehicles
- 2021 Mustang Mach-E FE, 2023 Bronco Sport OB
- Occupation
- Retired
Is there actually a MANUAL mode? There's a power button to turn the whole system off, but seems like we only get the 3 levels of AUTO when the system is on.There are 4 main factors to the climate control: how much the circulating fan is blowing (including not blowing at all), the vents out of which the air is circulated, how much heat is added or removed from the air being circulated, and finally a setting to allow outside "fresh" air in or not.
When you turn on the "auto" modes (low/med/high) the car uses the temperature you set to decide all 4 of those factors on its own. Otherwise, if you have the environmental controls in manual mode (you decide how hard the air comes out of which vents) the temperature you select just tells the car how much heat to add or remove from the circulated air.
Sometimes you are comfortable with the inside air temperature and just want the air circulated without having to guess what that temperature is, so you can tell the car not to use the A/C or e-heat.
The question is still what exactly those 3 levels of AUTO do. They seem to affect fan speed, but I think maybe it sets the maximum fan speed, and it automatically adjusts lower as it detects the temp. I have mine set to 3, and I think after the car warms up the fan is automatically slowing down (which is perfect, like a regular car does).
But the really big question is how E-Heat turned ON reacts/adjusts. It's still unclear to me whether the power usage automatically adjusts downward (even to zero) as the car warms up and only needs less heat. (In other words, actually automatic as it should be.) I know we can manually turn E-Heat OFF to ensure it doesn't use any power, but AUTO should be smart enough to not draw power when it detects it's not needed (while being smart enough to add heat when it's getting too cold). That's the whole point of being automatic.
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