What Causes the Belt to Squeal When the AC is Turned On?

1 Answers
StCorbin
07/30/25 1:37am
When the AC is turned on and the belt squeals, it could be due to a loose compressor belt; it might also be caused by excessively high refrigerant high-pressure; or there could be an issue with the compressor's clutch, requiring inspection and repair at a 4S shop. Below is an introduction to the car's air conditioning system: 1. Overview of Car Air Conditioning: The car air conditioning system (air-conditioning-device), commonly referred to as car AC, is designed to regulate and control the temperature, humidity, air cleanliness, and airflow within the car cabin to optimal conditions. It provides a comfortable environment for passengers, reducing travel fatigue, and creates favorable working conditions for the driver, playing a crucial role in ensuring safe driving. 2. Components of Car Air Conditioning: Generally includes a refrigeration unit, heating unit, and ventilation system. This integrated setup maximizes the limited space inside the vehicle, featuring a simple structure and ease of operation, making it a popular modern car air conditioning system internationally.
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