1. Blend door actuator: The blend door actuator controls the flow of air from the heater core to the cabin. If the actuator is faulty, it may not be able to fully close the blend door, allowing hot air to enter the cabin even when the air conditioner is on.
2. Temperature control sensor: The temperature control sensor measures the temperature of the air in the cabin and sends a signal to the climate control system. If the sensor is faulty, it may be sending an incorrect signal to the climate control system, causing it to think that the cabin is colder than it actually is and sending hot air to the cabin.
3. Climate control module: The climate control module controls the operation of the heating and air conditioning system. If the module is faulty, it may not be able to properly regulate the temperature of the air in the cabin.
Solution:
To diagnose the problem, you will need to have a qualified mechanic inspect the heating and air conditioning system. The mechanic will be able to determine which component is faulty and replace it as necessary.
