A customer complains that only the floor vents work. Technician A says that the blend door is most likely the cause. Technician B says that a mode door actuator could be the cause. Who is correct?
A. Technician A
B. Technician B
C. Both Technician A and B
D. Neither Technician A nor B
A customer complains that only the floor vents work. Technician A says that the blend door is most likely the cause. Technician B says that a mode door actuator could be the cause. Who is correct?
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The correct answer is C. Both Technician A and B.
Explanation: The blend door controls the mixing of hot and cold air, while the mode door actuator determines where the air is directed within the vehicle’s HVAC system (like floor vents, defroster, or dashboard vents). If only the floor vents are working, both the blend door and the mode door actuator could potentially be malfunctioning, making both technicians’ assessments valid.