What are the symptoms of a faulty car air conditioning electromagnetic clutch?
2 Answers
The symptom of a faulty car air conditioning solenoid valve is that the air conditioning cannot function properly, significantly reducing driving comfort. Generally, the car air conditioning compressor solenoid valve is located at the front end of the clutch, controlling the opening and closing of the air conditioning through power on and off. When the air conditioning solenoid valve reaches the set temperature, the solenoid coil is de-energized, the electromagnetic force disappears, and the refrigerant cycle is closed, playing a role in temperature regulation. Here is some extended information: The role of the car air conditioning solenoid valve: 1. The solenoid valve in the air conditioning is generally composed of an electromagnetic coil and a magnetic core, including one or more holes on the valve body (such as a three-way valve for cooling and heating). When the coil is energized or de-energized, the iron core action controls the connection and disconnection of the valve body. The electromagnetic coil is directly installed on the valve body, and the magnetic core is enclosed in a sealed tube.
I've encountered this issue before - the electromagnetic clutch failed and the AC simply stopped working. When pressing the AC button, no cold air came out, it felt like warm air was blowing. Strange clicking or squealing noises from the engine compartment were signals that the compressor wasn't engaging. In severe cases, the compressor wouldn't rotate at all, and the belt might slip and rub, producing odd smells. In such situations, immediate repair is necessary - prolonged driving could cause fuel consumption to skyrocket and even damage the entire compressor assembly, leading to much costlier repairs. My experience suggests that regular AC system inspections and proper maintenance can prevent such failures.
