Has anyone had this behavior? With the AC set to recirculate and A/C and MAX A/C with fan set to low (1), I’ll be driving down the high way in perfect harmony with my temperature and environment when the fan will pickup and blow harder. The fan still shows it’s on low but the airflow definitely has picked up. It’s almost like fan speed 1 is now blowing at fan speed 2 level and won’t go back to 1. 2018 Expidition Fx4.
AC fan picks up speed from low setting
- Thread starter TSieler
- Start date
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
99WhiteC5Coupe
Full Access Members
I’ve had this happen on my 2015 Expedition Limited 4x4 with dual-zone HVAC, while in the manual mode.
Purchased new - no a/c work other than front blower motor replaced under safety recall.
2020-MAX-Limited
Full Access Members
It's pretty common in most vehicles that when you switch from RECIRC off to on, the fan speed increases a little, but noticeably. Switch it back off, and fan reduces.
99WhiteC5Coupe
Full Access Members
I’m not sure that the fan speed increases as you describe.
Since the sound changes when placed in recirculating mode, perhaps it sounds as though the speed is increasing, but it isn’t?
On my vehicle, it does what the OP describes. While driving with the HVAC is manual (not automatic temperature) and recirculating mode (and no adjustment to the HVAC system), the fan speed will increase while set at a low fan speed.
The Ford dealer recently replaced the front HVAC under a safety recall on mine - am I’m not sure if the the motor is doing the same thing. I’ll have to pay attention to see if it does.
Really? I have heard of this feature on other vehicles but was not aware that Ford had it on the Expedition. So we are clear. The sensor automatically switches to recirculation mode when it senses "bad outside air". Are you sure we have this on our vehicles?
BravoAlpha
Full Access Members
I’ve not seen this on mine yet. I’m usually in auto. I’ve got a few hundred miles ahead of me this afternoon I’ll see if it will.
my 22 Bronco will do this. It will turn recirc off on its own
also on a power cycle, it will default back to auto
my 22 Bronco will do this. It will turn recirc off on its own
also on a power cycle, it will default back to auto
mdecillis
Full Access Members
It happens to me all the time. But recirculate does not go off and on, but the fan speed definitely changes. I just went on a 400 mile trip to Virginia Beach and it did it several times. This also happened in my 2019 Expedition as well.
Note: Recirculated air may turn off automatically, or prevent you from switching on in all air flow modes except MAX A/C to reduce the risk of fogging. Recirculation may also turn on and off automatically in various air distribution control combinations to improve heating or cooling efficiency.
mdecillis
Full Access Members
But recirc doesn't seem to be turning off, the light stays on and my AC is on MAX. So if it's turning off recirc then it's doing it without turning the light off. When using non-AC (ie heat/vent) the recirc will turn off periodically and the light goes off.
Similar threads
