What Are the Symptoms of a Faulty Car Air Conditioning Thermostat Switch?
1 Answers
Car air conditioning thermostat switch failure can lead to intermittent cooling, no cooling at all, or insufficient cooling from the car air conditioning system. Below is a partial introduction to the car air conditioning thermostat switch: 1. The car air conditioning thermostat switch has a temperature probe attached to the evaporator, primarily to prevent ice blockage caused by evaporator freezing. If the car air conditioning thermostat switch is faulty, the air conditioning will continue to cool, causing the evaporator to freeze. Once the evaporator freezes, cold air cannot be blown out through the vents. 2. Under normal conditions, the two wires of the car air conditioning thermostat switch form a closed circuit. The thermostat switch has a temperature probe attached to the evaporator to prevent ice blockage and loss of airflow. When the surface temperature of the evaporator drops to a certain level (usually set at 3 degrees Celsius), the two wires form an open circuit, causing the compressor to stop operating, and the evaporator temperature will no longer decrease.