There's no denying that the window AC makes some noise. The whirring and humming sounds are part of its normal operation.

But if you live in a small apartment or condo unit where you can hear every little noise, it can get annoying. The good news is that there isn't anything wrong with the AC as long as it continues to cool your space.

See, what is the eco mode on air conditioning?

So why does my window air conditioner sound like running water? There are a few different things that could be going on here:

Reasons For My Window Air Conditioner Sound Like Water Leaking

Reasons For My Window Air Conditioner Sound Like Water Leaking

Check For Water Leaks

The first thing you should do if the A/C is making strange noises is to check for water leaks. If the window AC leaks water, it could be due to a faulty installation, a bad part, or a manufacturing defect. If you notice a leak, shut down the air conditioner immediately.

Leaking water can cause significant damage to the home and the AC. If the window AC leaks water, have it serviced as soon as possible.

If the leak comes from the condenser, you can usually shut off the power and let the unit dry out. If the leak comes from the evaporator, you'll probably need to replace the whole unit.

AC Might Be Damaged

If an air conditioner makes a strange noise, there could be a few reasons. If it's because of damage, it's best to call a repairer, as an AC might need to be replaced.

If the A/C unit is old, it could be due for a replacement. When you replace the AC, you should consider upgrading to a more energy-efficient model, especially if your current unit is more than ten years old. If the A/C is damaged, you should call a professional for repairing or replacing.

Bad Installation

If your unit is relatively new and sounds loud and strange, the problem may occur because of bad installation. If an air conditioner unit is outside and you see that the condenser has puddles of water around it, this usually means that your drainage system is blocked.

A clogged condenser can cause an air conditioner to be louder than normal. It can also increase energy costs because the system has to work harder to cool the home.

To fix a bad installation, you'll need to clear the condenser of debris and ensure the drainage system is clear.

Condenser May Be Clogged With Dirt And Debris

If the AC is making loud noises and you know it's relatively new, the condenser may be clogged with dirt or debris. A dirty condenser can make the AC louder than normal. The condenser is the large, flat surface on the back of an air conditioner where the hot air is drawn out of the home.

If the condenser is covered in dirt or leaves, it may block the airflow and make your unit work harder than it should.

A quick and easy way to check if the condenser is clogged is to use a garden hose to spray water on it. If the water doesn't run off the unit, it's probably dirty and needs cleaning.

Coil May Be Rusted

If your unit is relatively new but still makes loud noises, the coil may be rusted. An air conditioner has a coil responsible for pulling the heat out of the home. A rusted coil may not do its job properly, which could cause the unit to be louder than normal.

If the coil is rusted, you'll need to replace it. Generally, it would help if you replaced the coil every five to seven years. If the coil is rusted, but the AC is relatively new, you may have a faulty indoor evaporator.

Coil May Be Rusted

FAQs

What is the reason for the gurgling sound coming from my AC?

If you listen to water sound from the HVAC system, the refrigerant lines will likely be damaged. If the liquid coolant lines are sealed correctly, there should be no gurgling sound from trapped air. If the system makes gurgling sounds, it is generally safe to use it.

How do AC noises normally sound?

As the AC continuously blows cool air through the ducts and vents of the home, it makes a low, steady blowing noise. Ideally, this noise should be so quiet that it disappears into the background.

What does frozen A/C sound like?

An AC that is frozen makes a buzzing sound when turned on. Air filters must be changed regularly to prevent ice from forming inside an air conditioner.

Is there a reason my window AC sounds like a jet engine?

It's a sure sign that the AC is malfunctioning if it sounds like a jet engine. Condenser fans, compressors, and frozen evaporator coils are some of the possible causes of this problem.

Can you tell me why my air conditioner sounds like a motorcycle?

There could be a small obstruction causing the AC to make a repetitive clicking sound that slowly gets faster as it turns on. It will cause a clicking sound if an obstacle bumps against the fan, such as a stick.

Is there a reason why my AC sounds like popcorn?

An air conditioner can make a popping sound if it has a refrigerant leak. A compressor can fail when the unit's refrigerant level gets too low. If this happens, the AC unit may not cool effectively, resulting in a popping sound.

Conclusion

If you notice a leak, shut off the AC immediately. Leaking water can cause significant damage to the home and air conditioner. If the window AC leaks water, have it serviced as soon as possible.

If the leak comes from the condenser, you can usually shut off the power and let the unit dry out. If the leak comes from the evaporator, you'll probably need to replace the whole unit.

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