Blend Door Actuator Motor

First the electric motor can burn out rendering the unit non responsive so nothing changes when the temperature or.

Blend door actuator motor. Replacement parts to fix the problem may be as little as a few dollars but the labor charges to replace it may go into the hundreds. It s a fairly simple process to take that part of the ac unit apart and replace the old motor with a new one. A certain method to move a blend door a couple of systems would take more than a little time and effort to control. Like any mechanical device a blend door actuator will eventually fail.

A blend door actuator is made up of an electric motor that turns a plastic gear set in one direction or another which is connected to an air control door pivot at the final drive of the unit. When you turn the knob on your dash to the desired temperature the actuator moves the blend door to achieve the proper mix. An actuator can be powered by vacuum or by a small motor mounted within the heat and air assembly. It is controlled by a blend door actuator which is a small electric motor.

Usually it is the actuator motor that has failed when the actuator is no longer working. Blend door actuator replaces 89018365 604 106 52402588 fits 1994 2012 chevrolet chevy gmc silverado 1500 and 2500 tahoe sierra air door actuator hvac blend control act 4 3 out of 5 stars 196. An actuator can go bad in of two ways. Also called hvac actuators these small electric motors control the flow and blend of hot and cold.

Blend door actuator in some car models manufactured before 1980 the blend door might have been activated by metal cables which were directly connected to the lever of temperature control on the dash.