Where is the resistor Board on a defrost heater?
Where is the resistor Board on a defrost heater?
When you take off the cover, take your hand and bang on the motor housing, if the motor starts working, then it’s your fan motor. Now for the resistor board, normally located to the left of the fan. looks like a circuit board about 2″ by 4″. When this board goes, you have nothing but high speed on the fan.
How does the climate system control the defroster?
The climate system is responsible for controlling the position of the defroster actuator which is connected to the air position door in the heater plenum. This actuator controls defrost, middle and lower air vents. When it fails it can do so in the defrost position and must be replaced.
Where is the defroster located in an air conditioner?
The defroster is part of the heater and air conditioner system which is housed inside of the heater plenum. The vent control system for the defroster in integrated into the operation of all temperature controls and uses forced air provided by the blower motor.
Where does the vacuum line from the defroster go?
Vacuum lines travel from the vacuum control switch on the dash to vacuum servos under the dash. These servos move the air doors which turn on and off the defroster. If you can hear a hissing sound when the car is running from under the dash then vacuum is escaping.
Where does vacumn go in a defrost heater?
The vacumn connectors go to the heater/defrost/a/c controls on the panel. mode selector on the dash is not supplying vacumn to the door actuator. Not on mine. Does not come out anywhere but the defrost vents.
Where are the actuators for the defrost vents?
There are three actuators. All three appear to be dual action i.e. have two vacuum hoses going to each. The Yellow/Blue one is located near the accelerator pedal. It is for the Floor/Defrost. There is one near the passenger door.
Why does my Dakota only blow out the defrost vents?
Just picked up a 99 dakota r/t and i’m only getting the heat/ac to blow out the defrost vents up on the dash for the windshield. Can’t get anything out of any other vent.
