What Causes the Water Sound in Car Air Conditioning?
3 Answers
When you hear a water sound while the car air conditioning is on, it's because the condensed vapor drains out of the cabin through hoses. First check if the central air conditioning hose has become detached. If not, the sound is likely caused by refrigerant flowing and evaporating inside the compressor, which is normal. More information about car air conditioning: Overview: The car air conditioning device (air-conditioning-device), commonly called car AC, regulates and maintains optimal temperature, humidity, air cleanliness and airflow inside the vehicle cabin. Function: Car air conditioning provides comfortable riding conditions for drivers, reducing travel fatigue; it creates ideal working conditions for drivers to ensure driving safety. A car air conditioning system typically includes refrigeration units, heating units and ventilation units.
I've encountered the issue of water sounds when the air conditioning is turned on, which is actually quite common. Most of the time, it's the sound of condensate water flowing. When the air conditioning is working, the evaporator will condense, and water will flow out through the drain pipe at the bottom. Normally, you might hear a splashing or ticking sound. But if the drain pipe is blocked, just like a clogged drain, water accumulates and flows poorly, making the sound louder, and you might even hear a gurgling noise. Once during summer, when I turned on the AC, it made a gurgling sound. Upon inspection, I found that the drain outlet was blocked by leaves. A simple cleaning with a wire fixed the issue, and it became quiet again. Regularly cleaning the air conditioning system and ensuring that no debris blocks the outlet when parking can prevent this. If ignored for a long time, water can leak into the cabin, making the floor wet and even causing mold and odors. This is something everyone should be aware of.
As someone who frequently pays attention to minor car issues, I understand that unusual water sounds from the AC are often caused by poor drainage. The air conditioning system produces condensation during operation, which is drained outside the vehicle through pipes. If the outlet is blocked by dust, insects, or debris, the water flow is obstructed, leading to abnormal noises. I remember last time when my car had a splashing water sound, I checked underneath and found the pipe entrance was completely clogged. After cleaning it, the noise disappeared. Normally, there should be a slight water sound, but it shouldn't be too loud. Additionally, issues with fan blades or the blower can sometimes mix with water sounds, so check if the impeller is hitting any foreign objects. Be careful when handling it to avoid damaging components. Ignoring it may corrode the metal parts inside the car and increase repair costs.
