Car Air Conditioning Unit Leaking Water

The other reasons your car can leak water are condensation from the air conditioning or the exhaust neither of which are any cause for alarm.

Car air conditioning unit leaking water. Ac leaking reason 1. First it s important to understand that water dripping from under the car when the a c is on is normal. The car a c leaking water can happen when the moisture in the air accumulates on your air conditioning unit s parts. Leaking air conditioners can destroy ceilings walls and anything else around it.

That of course is a coolant leak and it usually won t look like water on closer inspection. Sometimes though this drain can get blocked by dirt or debris. You ll notice you re low on refrigerant when. It s only when the water drips on the inside of the car there s an issue.

Blockage in the drain pipe the water in your air conditioner travels to the drain pan via a complex system of drain pipes. Most of the time the drain line gets clogged with dirt and the water has nowhere else to go except back into the pan. The first reason for your air conditioning unit leaking is that your drain line is backing up and the drain pan is overflowing. The air conditioner isn t cooling well.

That accumulated moisture will drip down in the area by the rear of the engine. The air conditioning system of your car is the most common source of water leak. Common causes of car a c leaks 1. Broken condensate pan depending on the age of your ac unit your condensate pan may rust and crack or split over time causing water to leak from your air conditioner.

Depending on the temperature it might happen that the moisture from the air concentrates on the ac parts and then dribbles down close to the rear of the engine section. There are exceptions but we ll get to those in a moment. You can minimize the risk of water leaking inside the car when the a c is on by using the unit s recirculation setting instead of the fresh air option. Especially in humid areas water condenses out of the air on the cooling coils inside your car where the freon from your air conditioning compressor exchanges heat from the inside of your car and leaves you with a stream of cold air coming out of your vents.

As we explained above condensation and excess water leave your car through an evaporator drain. When the coil melts water overflows the drain pan. You hear a hissing or bubbling noise indicating a refrigerant leak depending on the severity of the refrigerant leak you ll either repair the leak or replace the whole ac unit. We want the water to flow out of your car through the evaporator drain.