Heater Blend Door Actuator Function
You can usually diagnose and fix the problem yourself in about an hour.
Heater blend door actuator function. Also called hvac actuators these small electric motors control the flow and blend of hot and cold. A ticking sound coming from the dashboard. Increase your driving comfort with an a c heater blend door actuator if your car or truck passengers don t seem to be getting all the benefits of your vehicle s heating or a c system you could have a non working a c heater blend door actuator. Your order may be eligible for ship to home and shipping is free on all online orders of 35 00.
To accurately control blend door function the climate control system must measure where the door stops at the two end points of movement full open or full closed. The heater blowing cold air. The air conditioner blowing hot air. Auto heat built in heating systems have pretty much been standard equipment on most automobiles since the 1950s and 1960s.
If the door is stuck the heater plenum with need to be removed and the problem resolved before installing the new unit. Generally an 8 to 12volt signal provides the needed voltage and ground from the control head to the actuator motor. The symptoms of a bad blend door actuator include. Check here for special coupons and promotions.
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. If you cannot move the blend door an obstruction has gotten in the way of the door movement which will make the new actuator fail. Pen tooth pick small toy or bubble gum to name a few. Understanding blend door actuator problems.
Find the procedure in a shop manual at auto parts stores for about 20. A certain method to move a blend door a couple of systems would take more than a little time and effort to control. 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. If you experience any of these symptoms it s a good sign that you need to replace the blend door actuator.
The two wire actuator is the simplest of them all. The blend door is a small panel. But if your car heater blows cold air and you ve checked both heater core hoses to make sure they re hot you likely have a bum blend door actuator. These obstructions can include.
A common use would be for a door that only uses two positions such as a recirculation door where it is either fully open or fully closed.