What Causes Water Leakage When the Car Air Conditioner is Turned On?
2 Answers
The air conditioner drain is clogged. Solution: Turn off the power, use a Phillips screwdriver to remove the front panel and baffle, exposing the condenser and drain pan. Fill a mineral water bottle with water and flush the drain pipe along the pan, repeating several times to see if it can be unclogged. If not, use thin iron wire to slowly clear the blockage, remove the clogged material, and rinse with water until the drain flows smoothly. Finally, reassemble the baffle and panel in the reverse order of removal. Car air conditioning system: It is a device that cools, heats, ventilates, and purifies the air inside the vehicle. The car air conditioning system can control the temperature inside the cabin, heating or cooling the air to maintain a comfortable level; it can also remove moisture from the air. Dry air absorbs human sweat to create a more comfortable environment; it can intake fresh air for ventilation; and it filters the air, removing dust and pollen.
I encountered the issue of air conditioning leakage when driving my sedan, which often happens during hot summers. When the air conditioner cools, it absorbs moisture, which condenses into water and drains out through the drain hole. However, the drain hole can easily get clogged by dust, leaves, or other debris, causing water to accumulate in the evaporator box and potentially leak into the cabin, most commonly under the front passenger seat. Aging pipes or worn seals in the evaporator can also lead to water leakage. If not addressed promptly, the moisture can cause mold, unpleasant odors, and even damage electrical circuits. I recommend first trying to gently clear the drain hole with a small stick to see if you can fix it yourself. If the leakage stops, clean the debris from the drain channel before driving. If it still leaks, take it to a professional shop to check the pipes—spending a little money to replace parts can prevent bigger issues. Don’t underestimate this problem, as it can affect health, especially for families with children. Don’t let moisture cause trouble.
