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If you live in an apartment, you probably rely on a window unit to get through hot days. While incredibly convenient and easy to install, there are a number of issues that can happen with small AC units. To ensure you’re prepared for the worst, here is a guide to troubleshooting a broken window unit.

A Brief Guide to Troubleshooting Window Unit Problems

1. Dripping Water

If you notice fluid dripping from the front of your window unit, shut it off and put a bucket underneath it to avoid damage to your home—then call a repair technician. While all AC units generate water by condensing humidity, window units are designed to drain this liquid outside. If it’s coming into your home, the AC unit may not be installed at the correct slope for optimized drainage.

2. Short Cycles

window unitWhether you’re trying to have a conversation or watch a movie, the constant cycling of a faulty window unit can be a nuisance. However, it may also indicate that something is wrong with the AC. If it seems to be cycling off and on more often than usual, make sure to remove anything blocking the vents—such as a curtain or furniture. If you can access the back of the unit, make sure it isn’t clogged with leaves or other debris. Call a professional for help if you’re still noticing the issue after taking these steps.

3. Warm Air

When your window unit begins producing warm air, it won’t take long for you to notice. A failure to produce cool air can be fixed by cleaning the AC filter, which collects dust and contaminants in the air. If this doesn’t solve the problem, clean off the condenser coil in the back of the unit. You may also need to call a technician to inspect the inside of the unit for potential issues.


If you can’t seen to fix a window unit issue, get in touch with American Air Conditioning on Oahu, HI. In addition to installing and repairing AC units, they will help you save on energy and utility costs throughout the year. They use top-of-the-line equipment and technologies to ensure that they can repair any AC unit issue. For more information on their offerings, visit their website. You can also schedule an appointment by calling (808) 847-0851 today.

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