Temperature Control

TEMPERATURE CONTROL

If the heater outlet air temperature cannot be adjusted with the temperature control knob on the heater-A/C control panel, the following could require service:

- A faulty heater-A/C control.
- A faulty, obstructed or improperly installed blend-air door.
- The blend-air door linkage is not connected, or is not installed properly.
- A faulty blend-air door control system.
- Faulty water valve.
- Faulty water valve control.
- An obstructed cowl air intake.
- The engine cooling system.