Air Blend Door Actuator Problem

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Air blend door actuator problem. Blend door actuator locations begin by identifying the problem either defrost mid or floor or temperature modes not working. The blend door actuator is located in the center of the core box up under the dash. The symptoms of a bad blend door actuator include a lack of heat or air conditioning or failure of air to blow through some or all of the vents. Then locate and identify the actuator to be replaced.

The blend door actuator is most of the time at least accessible for testing but sometimes removal of the dash is necessary for replacement. A blend door actuator is linked to an air control door pivot found on the last drive of the unit. The symptoms associated with this are often complaints that the front windshield is slow to defrost or remains foggy. A plastic gear set is frequently rotated from one side to another by the electric motor an actuator can become faulty if the plastic gear set turns out to be fragile and it breaks.

The plastic doors break over time like bending a coat hanger back and forth. The actuator motors may also make a noise if they ve failed but this isn t always the case. On this video we showing how to troubleshoot a problem with the air conditioning main blend door on a 2002 ford f150 we found a bad blend door actuator moto. Can i drive with a blend door actuator problem.

A somewhat common problem in vehicles a few years old the heat and air system in your vehicle may be the victim of a faulty blend door actuator. There is a replacement mode or blend actuator available at most auto parts stores dorman part 604 107 price 39 99. The electronic actuator that controls the direction of airflow is called a blend door actuator. The control unit goes through this calibration process approximately every 20 times the vehicle is started.

The mode door actuator is on the left and the resirc door actuator is at the top of the dash near the windshield. Use a test light or power probe and verify that the proper signal is being received to the actuator based on your wiring diagram.