Technician A says heater temperature may be controlled by regulating the amount of coolant flowing Through the heater core. Technician B says heater temperature may be controlled by regulating the amount of air flowing through the heater core. Which technician is correct?

Question

Quizplus · Accepted Answer

Both technicians are correct. Technician A is correct because in some vehicles, the temperature of the heater can be controlled by adjusting the amount of coolant flowing through the heater core. Technician B is correct because in other systems, the temperature can be controlled by regulating the amount of air that flows through the heater core, often using a blend door.

Technician a Says Heater Temperature May Be Controlled by Regulating