Reasons Why the Car Compressor Does Not Rotate
3 Answers
Reasons why the car compressor does not rotate are as follows: 1. Severe internal wear of the compressor, leading to inability to function normally. The compressor plays a crucial role in the air conditioning system, primarily compressing and delivering cold air, which causes the compressor to operate in a high-speed rotating state for extended periods. 2. Check if there is any leakage in the refrigerant, as the compressor will not work without cold air to compress or deliver. 3. Faults in the electrical system are also a very common reason why the car air conditioning compressor fails to operate normally. You can check if the circuit is unobstructed and inspect the temperature sensor solenoid valve.
The old car I drove last summer had a problem with the compressor not working. It was extremely hot that day, and the air conditioning didn't cool at all, which caused me a lot of trouble. Later, I found out it was due to aging wires causing poor contact, a blown fuse, and possibly a faulty relay that made the compressor unresponsive. Normally, when driving, if you hear the belt squealing or the compressor making no sound at all, you should be careful. The compressor itself may also seize up, for example, due to long-term wear from using the air conditioning; or refrigerant leakage might trigger the system's low-pressure protection, preventing the compressor from starting. Now, during every maintenance check, I ask the mechanic to thoroughly inspect the electrical circuits to avoid issues, especially during hot weather when driving without air conditioning is unbearable.
With over a decade of driving experience, I've encountered many cases where the compressor wouldn't turn, mostly due to electrical issues. The most common problems are blown fuses from excessive current, failed relays that can't supply power to the compressor, or short circuits in circuits like the headlight switch, causing the entire system to fail. Mechanical jamming of the compressor or a loose belt can also prevent it from turning. If the compressor remains completely still after starting the car, remember to check the fuse box first; replacing a fuse is a small expense. Don't wait until the refrigerant leaks out, as that becomes more troublesome, costly, and time-consuming to fix. Pay attention to any unusual noises from the air conditioning system regularly; detecting potential issues early can save a lot of hassle.
