What Causes No Cooling or Airflow in Car AC at High Speeds?
1 Answers
The reasons why a car's air conditioning does not cool or blow air at high speeds are as follows: Reason 1: Too much dirt and dust on the condenser, leading to poor cooling performance. Reason 2: Too much debris in the air filter, affecting the blower's air intake and reducing airflow. Reason 3: Excessive dirt on the evaporator, significantly impacting both air intake and cooling, thereby severely affecting the AC's cooling performance. Reason 4: Ice formation on the evaporator surface, severely obstructing the AC's airflow. Below is an introduction to car air conditioning: Introduction 1: The heating principle of car air conditioning is simple. When the heating function is turned on, high-temperature coolant from the engine flows through the heater core, and the air blown by the blower passes through the heater core, allowing warm air to be blown out from the AC vents. Introduction 2: The cooling principle of car air conditioning is also straightforward. When the AC button is pressed, the AC compressor clutch engages, allowing the engine to drive the compressor. The compressor continuously compresses the refrigerant and sends it to the evaporator. Introduction 3: When the refrigerant expands in the evaporator, it absorbs heat, cooling the evaporator. The cooled evaporator then cools the air blown by the blower, allowing cold air to be blown out from the AC vents.
