Why Is Your AC Leaking Water? Common Reasons Explained

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Have you ever noticed water pooling around your air conditioning unit and wondered why it happens? Well, an air conditioning unit would leak water for a couple of reasons. Unfortunately, many people don’t realize that 80% of the time, this issue could have been resolved by performing preventive maintenance on the air conditioning unit.

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Clogged Drain Line

Picture this: your air conditioner works hard to keep your home cool. It removes humidity from the air, and all that moisture needs somewhere to go. That’s where the drain line comes into play. It’s responsible for carrying away the excess water. However, if this line becomes clogged or blocked, the water has nowhere to go and begins to overflow from the drain pan. Regularly check and clean the drain line to prevent such backups.

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Faulty PVC Fittings

Sometimes, the problem lies in your AC unit’s PVC (polyvinyl chloride) fittings. These fittings are responsible for connecting the components of the air conditioning system. If they were not correctly cemented during installation or have become disconnected over time, this can lead to water leakage. Inspect these fittings for any loose connections and ensure they are securely fastened.

Low Refrigerant Levels

Refrigerant is the lifeblood of your air conditioner. It’s what allows the unit to cool the air in your home. However, if your AC is low on refrigerant, it can lead to some chilling issues. When the refrigerant levels are insufficient, the evaporator coils can freeze up during operation. The ice melts as the unit cycles off, resulting in water leakage. Have a professional technician check and replenish the refrigerant levels.

Dirty Air Filters

Imagine your AC’s filter as its lungs. A dirty or clogged filter can block the air from penetrating through the filter, causing the evaporator coils to get very cold. This can result in ice formation, which later melts, causing water to leak. To prevent this, change your air filter regularly, typically every one to three months, depending on your usage and filter type.

Missing P-Trap and Air Vent

For the drain line to work efficiently, it needs a P-trap and an air vent. The P-trap is a curved section of the drain line that holds water and prevents air from flowing back into the unit. An air vent, on the other hand, allows air to enter the drain line and facilitates smooth drainage. If your AC system lacks these components, it can lead to water leakage. Ensure your AC unit is adequately equipped with a P-trap and air vent.

Poor Ductwork Insulation

Ductwork is responsible for transporting the cooled air from your AC unit to the different rooms in your home. If this ductwork is not insulated or is insulated poorly, it can lead to condensation. As the cold air inside the ducts meets the warm air outside, moisture can form, resulting in water leakage. To avoid this, make sure your ductwork is properly insulated.

In Conclusion, 

Water leakage from your air conditioning unit is often the result of preventable issues. Regular maintenance and inspection can help you identify and address these problems before they lead to costly repairs. Addressing these common issues, you can enjoy a more comfortable and worry-free indoor environment during the hot summer months.

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