Manual A/C-Heater

1. Verify the customer's concern by operating the manual A/C-heater controls to duplicate the condition.
2. Inspect to determine if one of the following mechanical or electrical concerns apply:

VISUAL INSPECTION CHART

MECHANICAL
^ Broken or leaking vacuum control motor.
^ Broken A/c-heater function selector switch.

ELECTRICAL
^ Blown fuse.
^ Fuse junction panel
^ Fuse 5 (15A)
^ Fuse 9 (30A)
^ Heater blower motor switch inoperative.
^ Circuitry open/shorted.
^ A/C control inoperative.
^ A/C electronic blend door actuator inoperative.

3. If inspection reveals obvious concerns which can be readily identified, service as required.
4. If the concern(s) remain after the inspection, determine the symptom(s) and go to the Symptom Chart. Manual Climate Control