Air flows in the passenger compartment are distributed by air ducts located inside the instrument panel
Air flows to the windshield through the upper slit-shaped nozzles on the instrument panel, to the side windows - through the side and, partially, the central nozzles (with air flow guides), to the feet - through the openings in the heater casing.
Interior heating and ventilation controls: 1 - front door window blower nozzles; 2 - windshield blower air duct; 3 - upper nozzles; 4 - regulator of additional air supply through the upper nozzles; 5 - side nozzles; 6 - central nozzles; 7 - air flow direction adjustment lever; 8 - air flow intensity regulator handle; 9 - tailgate glass heating switch; 10 - heater fan mode switch; 11 - supply air temperature regulator; 12 - air flow distribution regulator; 13 - outside air supply regulator
Outside air can enter the passenger compartment through the door windows with the windows down and the air intake located in front of the windshield and equipped, depending on the configuration, with a dust filter that cleans the air entering the passenger compartment from dust, soot, plant pollen, etc.
Air entering the passenger compartment through the air intake passes through the heater.
Depending on the position of the control handles of the heating and ventilation control unit 12, either heated or cold air enters the vehicle's passenger compartment.
The location of the heating and ventilation controls is shown in the figure.
You will need a screwdriver.
Disconnect the negative terminal from the battery.
Remove the instrument panel together with the heater (See "Removing the dashboard of the Niva Chevrolet produced since 2009").
Disconnect the wiring harness block of the heater electric fan.
Unscrew the two screws securing the air intake box and remove the box together with the electric fan.
Remove the heater control lever panel trim (see. "How to replace the heater Niva Chevrolet")
Turn out the screws of the rod mounting brackets and disconnect the rods
Turn out the screw of the bracket of the recirculation flap drive rod and disconnect the rod.
Remove the lever bracket and disconnect the wiring harness block from the heater electric fan switch.
Unscrew the screws of the rod mounting brackets and disconnect the rods.
Unscrew the plastic nut securing the heater electric fan switch and remove the switch.
Install all removed parts in the reverse order of removal.