Why a Brand New AC Unit is Leaking and What to Do

Why a Brand New AC Unit is Leaking and What to Do

Recently, a homeowner faced an unpleasant surprise with a brand new air conditioning (AC) unit installed less than 30 days ago. The AC unit was supposed to be a reliable solution for cooling, but it’s now leaking from the plenum onto the garage ceiling and from the main unit into the drain pan. This article will examine possible causes and what steps you can take to address the issue.

Common Causes of AC Unit Leaks

When a brand new AC unit is leaking, there are several potential causes to consider:

Improper Installation

One of the most common reasons for a leaking AC unit is improper installation. If the unit was not installed correctly, it might lead to issues such as improper drainage or misaligned components. Ensure that all connections and fittings are secure. If the plenum and other components are not properly sealed, condensation can form and leak.

Drainage Issues

The condensate drain line could be clogged or improperly sloped. An obstructed line can cause water to back up and leak into the plenum or surrounding areas. Regular maintenance and proper installation can help prevent this issue.

Refrigerant Issues

A refrigerant leak can cause evaporation and condensation to occur in unintended areas, leading to water accumulation. If your unit is experiencing a refrigerant leak, it’s important to have it repaired promptly to prevent further damage and potential inefficiencies.

Humidity Levels

If the AC unit is undersized for the space or if the humidity levels are unusually high, it may struggle to manage moisture effectively, leading to excess condensation. Ensure that the AC unit is correctly sized for the space and that the humidity levels are within acceptable ranges.

Faulty Components

Even new units can have defective components such as a faulty condensate pump or malfunctioning float switch, which can cause leaks. Check all components to ensure they are functioning properly.

Installation of the Plenum

If the plenum is not sealed properly, it can allow condensation to form and leak. Ensure the plenum is sealed correctly to prevent this issue.

Insulation Issues

Inadequate insulation around the ductwork or plenum can lead to condensation forming on the outside of the unit. Proper insulation can help mitigate this issue and prevent excess moisture.

What to Do if Your AC Unit is Leaking

To address the issue, it is best to contact the HVAC contractor who installed the unit. Since it is under 30 days old, it may still be under warranty. They should be able to diagnose and fix the problem without charge. If you are in the United States, you can call the manufacturer or retailer to determine the warranty coverage.

There are two common reasons why a brand new AC unit might be leaking:

Manufacturing Defects

The AC unit might have been damaged during shipping or installation. If it is less than one year old, contact the retailer. Typically, retailers provide at least one year of free warranty. If the issue persists, it may be due to manufacturing defects. The retailer should replace the unit free of charge or provide a repair service.

Improper Installation

The pipes for liquids might have been installed incorrectly or not appropriately isolated. It is crucial to contact the company that installed the AC unit. If they cannot resolve the issue, look for maintenance providers in your area. For instance, in Aircon Services Singapore, they offer reliable maintenance and repair services. Find a similar provider in your region for optimal support.

Proper installation and regular maintenance are crucial to ensuring that your AC unit functions correctly and efficiently. By addressing any issues promptly, you can avoid costly repairs and ensure a comfortable home environment.