Seeing water dripping from your air conditioning device can be very unsettling. A messy puddle inside would be the absolute last thing you need, not to mention the horrifying expense of repairs! Despite the fact that your air conditioner removes moisture, this scenario is abnormal. Instead, a water leak from an AC may be a sign of a severe problem, and you might not know how to fix air conditioner leaking water inside. You should immediately contact for HVAC assistance and turn off your air conditioner if you discover a leak. If you continue to use your air conditioner, water accumulation could lead to problems.

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There is no need to panic if your indoor AC machine is dripping water, but you do need to act quickly. Most AC leaks can be quickly fixed by an HVAC expert, often without the need for costly repairs. Continue reading to learn the most frequent causes of an AC leak and how to fix air conditioner leaking water inside.

What Causes an AC to Collect Water?

Your HVAC system affects how humid your home is and regulates the temperature. The evaporator coils make up the interior air conditioner. Warm air from your home is drawn out by your HVAC system and blown over cold evaporator coils, where it condenses and lowers humidity.

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The resulting condensation drips into a pan with a drain pipe that links to a condensate drain. This pipe empties the water outside and exits your house. The issue arises when your air conditioner has difficulty getting rid of the additional water and excessive moisture buildup. Consequently, your AC might begin to release water into your home. Top 6 Reasons Why Your Air Conditioner Is Leaking Water Inside Your House:

When an air conditioner leaks indoors, it can cause serious issues like water damage to the home’s interior and furniture, the development of mould and mildew, unpleasant odours, and a risk of slipping and falling. It’s crucial to comprehend the potential causes of water leaks from air units and how to fix air conditioner leaking water inside. If you notice water dripping from your air conditioner, you must immediately address the issue and stop further harm to your house.

Improper Drainage

Inadequate draining is among the main causes of water leakage from air conditioners. The condensation that is produced inside the cooling coils must be drained appropriately. If the drain lines are clogged or not properly directed, excess water will accumulate and overflow, causing water leaks inside the home.

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Damage To Cooling Coils

Another common cause of air conditioning leaks is damage to the cooling coils. The refrigeration coils, which remove moisture from the air, are subject to wear and strain, lack of maintenance, and impacts from foreign objects over time. Damaged coils can produce excess condensation, which can overflow and cause water leaks in the home.

Clogged Or Damaged Filters

The filters in an air conditioner, which are responsible for removing filth and debris from the air, can become clogged with too much grit and grime. When filters are clogged or damaged, they can reduce the unit’s efficiency, resulting in excess condensation and water leaks.

Improperly Installed Or Maintained Refrigerant Lines

The refrigerant lines in an air conditioner are responsible for transferring the coolant, which regulates the unit’s temperature. Improper installation or maintenance of these lines can result in coolant-related leaks. Leaks may occur due to damaged or improperly connected lines, incorrect valve sizing or placement, or lack of insulation around the lines.

Oversized Or Undersized Air Conditioners

Temperature changes and moisture retention can result from an air conditioner that is either too big or too tiny for the room. A little air conditioner may need to run longer to cool a space, leading to excess moisture and condensation. At the same time, an oversized unit may not be able to reach optimal cooling temperatures and can produce too much condensation.

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Faulty Condenser

Another possible reason air conditioners leak water is that the condenser may be faulty. A malfunctioning condenser might create too much condensation, which could lead to water leaks inside the house.

Ways You Can Fix Your Ac From Leaking Water Inside

How To Fix Air Conditioner Leaking Water Inside

How To Fix Air Conditioner Leaking Water Inside

A leaking air conditioner can cause significant damage to your home, including water damage, mould growth, unpleasant odours, and a potential slipping hazard. It’s essential to address the issue immediately. Here are some tips on how to fix an air conditioner that’s leaking water inside:

Turn Off The Air Conditioner

The AC must be turned off first. By doing so, you’ll stop the leak from growing worse and be able to handle the situation safely.

Identify The Source Of The Leak

Locate the source of the leak. It could be a leak from the evaporator drain pan, condensate line, or coils. Depending on the source, you might need to contact a technician for additional investigation.

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Fix The Drain

If the leak is coming from the evaporator drain pan, the solution may be simple. Clear the drain blockage using a snake or a wire hanger, or use a shop vacuum to suck up the blockage.

Clean The Coils

If you find that the leak is coming from the coils, clean them thoroughly. A brush and a soft cloth can be used to clear the coils of any dust or other debris blocking them.

Replace The Valves

You might need to repair the valves if they are the source of the leak. This is a job for a professional technician.

Check The Insulation

It might be necessary to replace the insulation if the leak originates from there.

Perform Regular Maintenance

Regular maintenance can help prevent leaks by detecting and addressing potential issues before they become serious.

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Consult A Professional

If the leak is significant or lacks your DIY skills, consult a professional AC technician immediately. They can diagnose and repair the issue safely and efficiently.


Your house could sustain significant damage from water leaks from air conditioners, including water damage, structural damage, and mould growth. It is essential to address how to fix air conditioner leaking water inside by having your air conditioner inspected by a qualified professional if you observe water leaking from it. Professional HVAC technicians can locate the source of the leak and perform the required adjustments.

Proper installation, regular maintenance, and optimal coolant levels are essential to prevent water leaks from your air conditioner. A high-quality air conditioner with appropriate drainage, insulation, and airflow can also help lower the possibility of water leaks in the house.