It's a 2015 Ford Taurus Limited. Does anyone know what could be wrong?

Any ideas on what I can check? Maybe a fuse? Any suggestions would be appreciated!

I'd guess your mode door actuator needs to be replaced. Does it make any grinding noise like it's trying to switch from vents to floor/defrost?

It does not make any noise when we switch it. Just keeps on blowing from the front vents.

AS Goose said, the mode door actuator has failed.

~$30
~1 hour

Install that new actuator in your Taurus

If you have dual zone climate control, and you cannot control the fan speed, or the airflow between top, front, or floor vents, it may be the Blower Motor resistor: YH1827.

I've replaced both recently on Fords with similar symptoms.

If you can't control temperature (it is either hot or cold) then it is likely a blend door. If you can't control speed or vents, the resistor is likely a culprit. It might well be both if all the symptoms are there.

Not as familiar with the Taurus, but it uses the same blend door actuators and motor resistors as the F150s. The locations may be different from the 3 x blend door actuators and 1 x resistor on the F150.

If you are going to dig into it, you may as well do all of them -- as when one goes, the others are not far behind.

Trinity Ag said:

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If you have dual zone climate control, and you cannot control the fan speed, or the airflow between top, front, or floor vents, it may be the Blower Motor resistor: YH1827.

I've replaced both recently on Fords with similar symptoms.

If you can't control temperature (it is either hot or cold) then it is likely a blend door. If you can't control speed or vents, the resistor is likely a culprit. It might well be both if all the symptoms are there.

Not as familiar with the Taurus, but it uses the same blend door actuators and motor resistors as the F150s. The locations may be different from the 3 x blend door actuators and 1 x resistor on the F150.

If you are going to dig into it, you may as well do all of them -- as when one goes, the others are not far behind.

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Resistor has nothing to do with where the air comes from. Only fan speed.

Mode door actuator would do it.

Thanks guys. Gonna try and see if that fixes it!

Thanks.

Some of the online dudes suggested a bad resistor could creat an electronic fault -- disrupting the auto climate controls from adjusting air flow to the different vents.

On the truck I fixed, replacing the blend door actuator by the gas pedal and the resistor fixed both problems.

So I assume actuator fixed the vent control issue, and the resistor fixed the lack of fan speed control.

Either way, it was $50-60 in parts and took less than an hour combined.

The passenger side blend door actuator (behind the radio/nav screen) took about 2 hours (I could do it much faster a second time).

The drivers side actuator -- under the cent console -- took me at least 10 hours and serious ass pain, figuring out how to pull the dash and access the thing.