Tips Sahabat

Causes of AC Waste Water Entering the Cabin

09 April 2025
air buangan ac masuk dalam kabin

Have you ever experienced air conditioning waste water entering the cabin of your car? If the answer is yes, then you should pay attention to this review. This review will discuss in detail the causes of air conditioning waste water leaking and entering the cabin.

Water that comes from the AC drainage, if it leaks into the cabin, will certainly be very disturbing. Besides feeling damp, this can also affect the health of the people inside the car.

Causes of Air Conditioning Waste Water Entering the Cabin

Leaking AC water into the cabin is a sign that there is a problem with the AC. As a car owner, you should not ignore this. 

Why? Because this can lead to serious problems. You need to know that if the AC's waste water enters the cabin, it means that the AC drainage channel is clogged.

If you continue to leave it, the AC evaporator will rust and cause leaks. An AC that has a leak will create other problems. The problem is a freon gas leak.

To avoid the emergence of this problem, you need to know what causes the AC waste water to enter the cabin. For more clarity, see the following explanation.

  • Clogs and Leaks in the Car AC Drain Hose

The first cause of AC waste water entering the cabin is a leak in the drain hose of the AC. The drain hose is the pipe that drains water from the AC evaporator to outside the cabin.

If the waste water enters the cabin, it means there is a blockage or leak in this drain hose. To prevent this problem from occurring in your car, perform regular maintenance on the car's AC.

One way is to clean the drain hose of the car's AC to ensure the water flow is smooth again. Additionally, you can also regularly replace the AC filter. This can help reduce dust buildup on the evaporator.

  • The AC System is Experiencing Problems 

In fact, there are many problems that can occur in the AC system. One consequence that arises from this system problem is freezing, which causes ice to form on the AC pipes. 

This ice will increase the amount of AC water that must exit the cabin. When the amount of water from the ice is greater than the water that should exit through the drain hose, the AC will leak. Because water exits through the evaporator box and leaks into the cabin.

The cause of freezing in the AC is usually due to insufficient freon volume or a lot of dirt and dust on the evaporator. 

However, it is best to consult an experienced car AC technician to get a clearer understanding of the problem with your car's AC.

  • Using the Car AC Continuously

When traveling long distances, the car's AC is usually on continuously. This also causes the AC waste water to enter the cabin. The cause is none other than continuous condensation.

Because this condensation process causes an increase in water on the evaporator, leading to AC water leaking into the cabin. To address this issue, it is advisable to turn off the AC every 3-4 hours for at least half an hour.

By doing this, the water content in the evaporator will drain and dry out. Thus, water will not leak into the cabin again.

For those of you who own a Daihatsu vehicle, please contact Daihatsu CS if you need assistance with car AC repair services. 

Read Also: Car AC and How It Works

That concludes the review regarding AC waste water entering the cabin. If you need complete information or car AC repair services, please visit the Daihatsu website. Get complete maintenance details for your beloved Daihatsu.

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