Air Door: Adjustments

Air Mix Door (Water Cock):

AIR MIX DOOR (Water Cock)
1. Move air mix link by hand and hold air mix door in full cold position.
2. Install air mix door motor on heater unit and connect sub-harness.
3. Turn ignition switch to ON.
4. Slide temperature control lever to full cold.
5. Attach air mix door motor rod to air mix door link rod holder.

Air Mix Door Control:

6. Check that air mix door operates properly when temperature control lever is slid to full hot and full cold.

Air Mix Door Adjustments Chart:

7. Check Potentio Balance Resistor (PBR) characteristics, measure resistance between air mix door motor terminal between G and 26.
8. Slide temperature control lever to full cold.
9. Attach water cock cable to air mix door linkage and secure with clip.
10. Rotate and hold water cock lever AND plate in the full cold position (CLOCKWISE completely).
11. Attach water cock cable to plate and secure with clip (white mark on cable housing should be centered under the retaining clip).
12. Check that water cock operates properly when temperature lever is slid to full hot and full cold. (After several cycles, water cock lever should be midpoint of plate opening when temperature slider is full cold).