How to Determine if the Air Conditioning Lacks Refrigeration Oil?
2 Answers
To determine if the air conditioning lacks refrigeration oil, follow these methods: 1. When the air conditioning is not turned on, check the liquid level observation port of the air conditioning. If the liquid level is below half, it indicates a lack of refrigeration oil in the air conditioning; 2. Refrigeration oil serves the sealing function of the air conditioning compressor. If the pressurization pressure is too low or unstable when there are no leaks in the air conditioning system, it means the air conditioning lacks refrigeration oil. Car air conditioning refers to the air conditioning device installed in the vehicle, which can cool, heat, ventilate, and purify the air inside the compartment, providing a comfortable driving environment for the passengers. The car air conditioning system consists of refrigeration devices, heating devices, and ventilation devices.
My old car's air conditioning occasionally underperforms, making me suspect it might be low on refrigerant oil. Simply put, if you turn on the AC and notice the air isn't as cold as it should be, with significantly reduced cooling efficiency, that's a telltale sign. Another red flag is strange noises from the compressor when starting the engine and AC—squealing or clicking sounds are classic symptoms of oil deficiency. One summer, my AC suddenly emitted a foul odor, and the mechanic diagnosed it as excessive internal friction heat due to low oil levels. Here are some DIY checks: After running the AC for a few minutes, feel the air vent temperature with your hand—if it's unusually warm, be alert. Alternatively, monitor the AC pressure gauge readings (leave this to professionals if unfamiliar). Prolonged refrigerant oil shortage can damage the compressor, leading to costly repairs, so early detection and intervention can save you money.
