Why is Mitsubishi Aircon water leaking? How to fix it?

Mitsubishi air conditioners are known for their quality and ability to cool entire homes or rooms effectively. However, like with any other air conditioner, users may experience water leakage from their Mitsubishi units. Wet floors and damp walls can be a frustrating and serious issue for homeowners. It is imperative to identify the cause of the water leakage and implement the proper measures to fix it.

Reasons for Mitsubishi Aircon Water Leaking:

Clogged Condensate Drain Line: The most common cause of water leakage in air conditioners, including Mitsubishi units, is a clogged condensate drain line. Over time, dirt, dust, and other obstructions can accumulate and clog the drain line leading to water accumulation and overflow.

Cracked or Wrongly Installed Drain Hose: The drain hose carries water from the air conditioner to the outside. If the hose is cracked or not appropriately installed, it may cause water leakage.

High Humidity Levels: High levels of humidity can contribute to water leakage in air conditioners. This is because higher humidity levels can cause moisture buildup in the unit, preventing the air conditioner from effectively draining the water out.

Frozen Evaporator Coil: A frozen evaporator coil can cause water to leak from the air conditioning unit. Freezing occurs when air conditioners run continuously without any breaks, thereby causing the coils to freeze over.

How to Fix Mitsubishi Aircon Water Leaking Issues:

If you experience water leakage with your Mitsubishi air conditioner, the following steps can help correct the problem:

Switch off the air conditioner: Turn off the AC unit to avoid injury and further damage to the unit.

Check the drain pan and drain line: Remove the evaporator coils and check the drain pan and drain line for any blockages or debris. Clean the drain line thoroughly using a wet/dry vacuum or a pipe cleaner.

Inspect and fix the drain hose: Check for any cracks or improper installation of the drain hose and repair or reinstall it appropriately[^1].

Address high humidity levels: Use a dehumidifier to reduce the humidity levels that contribute to water leakage.

Prevent evaporator coil freezing: Check for any clogs or obstructions that may impede airflow, causing the evaporator coils to freeze over. If necessary, have a professional check the refrigerant level.

Water Leakage in Mitsubishi Air Conditioners

Clogged Drain Line
When the drain line gets clogged with dust, dirt, or algae, water can’t drain properly and can back up into the unit, causing it to leak.

Dirty Air Filter
A clogged air filter restricts airflow over the evaporator coil, leading the coil to freeze. When the coil defrosts, the excess water can overflow, causing a leak.

Low Refrigerant Levels
Low refrigerant levels reduce the pressure in the AC system, which can cause the evaporator coil to freeze up. When it melts, the excess water may cause leakage.

Damaged Drain Pan
Over time, the drain pan may corrode or crack. When this happens, water that would typically be collected and drained leaks out of the unit instead.

Improper Installation
If the air conditioner isn’t installed correctly or is tilted at the wrong angle, it may not drain water properly, causing it to pool and leak from the unit.

High Humidity Levels
In highly humid environments, your Mitsubishi AC may produce more condensation than normal. If it’s not draining fast enough, water can accumulate and leak.

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With proper preventive maintenance and prompt attention to water leakage issues, homeowners can keep their Mitsubishi air conditioners working efficiently for years.

In conclusion, water leakage from a Mitsubishi air conditioner can be a frustrating experience for homeowners. The good news is that these issues can be resolved by identifying the root cause and taking the necessary actions to fix them. By following the steps outlined above, homeowners can address water leakage issues in their Mitsubishi air conditioners.

 

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