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Ducted Aircon System

Ducted Aircon Leaking Water – How To Solve?

By March 13, 2025March 21st, 2025No Comments
Ducted Aircon Leaking Water - How To Solve

The ducted air conditioner is a better option for a cool, comfortable living space with large areas. Although these systems have many advantages over split systems, water leakage is a common problem for them. Water can leak and damage your home and reduce the system’s operational efficiency. Let’s discuss the reasons for ducted air conditioning by looking at water and how to solve the water leakage problem.

 

Causes of Water Leakage in Ducted Aircon Systems

Below are a few common causes of water leakage problems in ducted aircon systems.

Clogged Drain Pipe 

Drain pipes transport the condensation water. If the drain pipe is clogged with dust, dirt, and debris, the obstructed pipeline may overflow water, creating system leakage.

Dirty Air Filters 

Dirty air filters are also reasons for water leakage in ducted aircon systems. Air filters ideally capture the dust particles and contaminants in the air and provide fresh air in the system. However, if the air filters are not cleaned and maintained correctly, they can create obstruction. This obstruction will ultimately cause ice formation on the evaporator coil. When the ice melts, water starts leaking.

Low Refrigerant Levels

The low refrigerant level is a common cause of ice formation in the evaporators. If the system has a shortage of gas for any reason, then ice will accumulate on the evaporator coil, and ultimately, when the ice melts, it causes water leakage.

Damaged or Disconnected Drain Pan

Drain pans are supposed to carry the water that naturally creates over-condensation. If the drain pan is damaged or anyhow disconnected from the system, it will no longer hold water, and the condensed water will ultimately cause leakage.

Improper Installation

Improper installation is also a common reason for water leakage in the ducted aircon system. Installation problems such as the drainage system is not installed correctly, the drain pan is not connected the right way, etc can cause water leakage.

High Humidity Levels

Excess humidity can cause water leakage in the ducted aircon system. The AC is supposed to remove additional moisture from the air. If the air contains an excess amount of moisture for any reason, then there is a water overload in the system because the aircon is working hard to remove all the moisture from the air. The overload in the drainage system can create water leakage.

Causes of Water Leakage in Ducted Aircon Systems - visual selectionSteps to Fix Ducted Aircon Water Leaks 

Below is the step by step process of fixing the ducted aircon water leakage problem. 

Step 1: Check and Clean the Drain Pipe

Check whether the drainage pipe is clean and clear. If there is any blockage, use a wet or dry vacuum to remove it. You can also flash the pipe using water and a mild detergent.

Step 2: Replace or Clean Air Filters

As you know, dirty air filters can cause the evaporator to produce ice, so you should clean the filters regularly. It will ensure uninterrupted airflow and ensure fresh air inside your space. Replacing or cleaning ducted air filters may need professional assistance.

Step 3: Inspect Refrigerant Levels

Call a professional technician to check the refrigerant level. Refill the gas if necessary. Different types of refrigerant gas are used for HVAC systems, such as R32, R22, and R410A. Before refilling gas, ensure there is no gas leakage in the system.

Step 4: Examine the Drain Pan

You already know a damaged or disconnected drain pan can cause water leakage. Check the drain pan for any such issues. Verify that the connection between the drain pan and drain line is okay. If the drain pan is corroded, replace it. 

Step 5: Re-Level the Unit

Incorrect installation of the air HVAC system can cause water leakage. Check if the unit is level. Correct the level of the unit to make sure the water drains properly. This job can only be done by professional HVAC technicians. 

Step 6: Address Excess Humidity

Air conditioning systems can have difficulty removing moisture in humid environments. Using a dehumidifier to lower air moisture levels can decrease the workload on your ducted aircon system. It can reduce the aircon load and stop leakage if the problem is caused by excess humidity. 

Fixing Ducted Aircon Water Leaks

Preventative Maintenance Tips 

Below are a few bonus preventive maintenance tips for stopping water leakage problems

  • Replace the air filter every one or three months to clear the blockage caused by dirt.
  • Perform a visual examination of the drain pipe every few months to ensure it is clear of clogs or accumulated debris. 
  • It is essential to arrange yearly maintenance services for your air conditioning system through a certified technician. 
  • Check refrigerant levels during regular maintenance.
  • Singapore is a humid place. In case of excess humidity, a dehumidifier can be used to reduce the workload of the aircon unit.

 

 

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Frequently Asked Questions (FAQs) 

Is water leaking from my air conditioner dangerous? 

Water leaks from my air conditioner can lead to severe home damage. It may reduce the efficiency of the AC and cause long-term aircon problems. 

Can I fix a leaking air conditioner myself?

Anyone can perform simple air filter inspections and drain line inspections. However, most of the maintenance and repair jobs of duct aircon systems must be done by professional technicians.

How often should I clean my aircon filters?

Clean air filter every one or three months. Consider replacing the filter if you are a heavy user. 

 

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