Cant find the plug for the control actuator on a Ford E150. Door is not switching so only cold air is blowing.

Not blowing air or cold air? No cold air need to check the charge. All doors need to be checked to make sure they move fully. A partially opening or closing door will feel hot on a hot day. I think you need a new car guy and you need an ac guy.

Temp control actuator Is probably in need of replacement . Your best bet ,take it to a qualified technician .
Which HVAC system does it have
HVAC Systems - Manual
HVAC Systems - Automatic
Air Temperature Valves
The air temperature valves are positioned by the left and right electric actuators. When the temperature door is in the cold position, air is prevented from passing through the heater core. The door can be placed in any position between cold and warm by the actuator to provide any degree of warming to the air after it has passed through the A/C evaporator core.

The most common cause of this is that you have a stuck air temperature control blend door, this can be a motor actuator issue or a jammed door or both (common). To replace both parts you will need to completely remove the dash from the car to access the blend door.

make sure your cabin air filter is not plugged may need to be replaced

Air Temperature Control Blend Door Failure No Heat or no AC (dependes on where door sticks)

In all modern cars there is a tiny DC electric motor driven gear drive that moves a plastic door that blends heated and cooled air from the AC and the heater core, this is called (interestedly enough) the air temperature control blend door actuator. The motor that moves this door fails because the door starts sticking from warping, most common complaint is no heat but it can be no AC as well. To replace these parts (blend door and blend door actuator) you must remove the entire dash from the car. Always have this problem confirmed by a dealer or qualified repair shop as it is a very expensive repair.

Other causes of no heat in the cabin are engine thermostats that are stuck open (engine runs cold) or air bubbles in the cooling system.

Check the blend door actuator. It is a common problem for that vehicle.
Also the temperature knob itself.
The plastic knob will crack and will not turn the metal post underneath to open/close the blend door.


There's a recall for your vehicle for other problems.
http://www.motortrend.com/cars/2006/ford/f_150/recalls/

you need to have automatic ac and heater control checked out at a garage problem could be in the mode switch or electrical problem causing front blend door actuator not working properly.your vechicle has the EATC SYSTEM which is computer control need diagnostie equipment to fix.

The most common cause is a bad blend door actuator which controls air flow throughout the cabin. When air flow only flows from 1 section (either floor, vent, or defrost) it's an indication that the blend door actuator is either stuck or broken.

blend door or temp contrl switch is bad.

Section 12-02: Heating and Defrosting 1998 Windstar Workshop Manual
REMOVAL AND INSTALLATION Actuator Motors, Electric Temperature Blend Door
Removal

1. Remove cassette storage box or center shelf unit, if equipped.
   

1. Remove instrument panel ash receptacle (04810) by depressing service lever.
   

1. Disconnect electrical harness connector from electric blend door actuator.
   
   
   
   
   

1. Remove three retaining screws.
   
   
   
   
   

1. Carefully pull electric blend door actuator outward and off A/C evaporator housing (19850) assembly.
   

Installation

1. Follow removal procedure in reverse order.
   

1. Air temperature control door shaft is keyed. Move door to properly insert electronic actuator shaft. Make sure the shaft is completely in and properly seated.
   

have 2001 ford windstar front ac blows hot but rear blows cold any idea what problem is and how to fix it?