It’s time to clean your window air conditioner. Here’s how

There’s nothing sadder than an air conditioner blowing out lukewarm air on a scorching day. heat wave. If your AC is not performing as it should, it may be broken or outdated. You can get your AC working again by cleaning it and if you have a window AC unitthen you’ll want to perform some simple maintenance to keep the unit running efficiently.

Replacing the filter Regular maintenance is the most important factor in keeping an air conditioner pumping out the most cool air possible, but there are other ways an air conditioner can get dirty or clogged, and performing regular maintenance on it will help ensure that it takes as long as possible.

Cleaning a window air conditioner can seem intimidating if you’ve never done it before. Fortunately, even a novice handyman can perform basic AC maintenance with minimal effort and no special equipment.

The following tips will help you keep your air conditioner clean, functional and energy efficient. (You can also use our Window Air Conditioner Buying Guide. We also have tips about how to fix a noisy air conditionerAnd how do you know when it’s time to replace your air conditioning.)

Read more: Lower your electric bill this summer with these air conditioning tips

Gather your AC cleaning supplies

You’ll need a few items from around the house to give your air conditioner a thorough cleaning. Before you begin, gather the following materials:

• Hot water
• Mild soap or detergent
• Reusable cloth
• Drip tray to place under your unit
• Spray bottle filled with 3% hydrogen peroxide
• Finch comb or soft brush
• Compressed air
• Screwdriver

1. Clean the filter

Cleaning the filter in your window AC unit is the most important thing you can do to keep it running smoothly. It’s a good idea to wash the filter monthly, even if you’re not cleaning the entire unit. Here’s how to do it.

First, make sure your air conditioner is unplugged, then remove the front panel and remove the filter. If it is covered in dust or hair, use a vacuum cleaner to suck out as much dirt as possible. Then, wash your filter with warm, soapy water and let it dry. Wait until it is completely dry before putting it back into your window air conditioner.

It’s also a good idea to change your air conditioner filter regularly. The exact frequency will depend on how often you use your AC and environmental factors, but you should aim to change your filter every six weeks to six months.

2. Wipe the grille and exterior clean

While your filter is drying, wash the grille with warm water and a mild detergent. Or, if you don’t want to wash it, you can wipe it down with a damp, reusable cloth instead — just be sure to thoroughly clean between the gaps where air escapes. Let it dry completely before reattaching it.

After cleaning the grille, wipe down the top and sides of the air conditioner. Be sure to get into small spaces where dirt and dust can easily collect. Wait until the grille and exterior are completely dry before running the unit.

3. Dust the fins and rinse

Now it’s time to roll up your sleeves and get inside your AC unit. You don’t have to dust the fins and coils every time you clean your air conditioner, but most manufacturers recommend doing it quarterly or semi-annually.

First, take a fin comb or soft brush and gently comb the aluminum fins in your AC. Take your time during this process, as the fins bend easily and can be sharp. If you notice any bent fins, gently move them back into place.

Next, spray your can of condensed air into the unit to dust off the coils. You want to be as thorough as possible to remove any debris that may be preventing your unit from working properly.

4. Clean and empty the drawer

Clean the inside of your window AC unit by emptying the drip pan and clearing the drain. To remove any dirt or dirty water from your pan, grab a wet/dry vacuum (if you have one) or a damp cloth and pull out whatever has collected inside. Let it dry before reassembling.

Finally, check the drain to see if there is anything blocking it. Use your cloth to wipe around the opening and make sure there is a clear path for water to exit your unit.

5. Reassemble the unit and spray with cleaner

After you’ve cleaned and dried everything, it’s time to reassemble your window air conditioner and give it a final spray to prevent mold growth.

Grab your hydrogen peroxide spray bottle and apply the solution to the areas where air flows in and out. Wait for the peroxide to dry before using your unit — and you’re done! Not only will you be breathing cleaner, cooler air, you’ll also be extending the life of your air conditioner.

Final tips

In addition to regular cleaning, there are other steps you can take to keep your air conditioner in good condition. For example, remove it from your window and store it indoors during the winter months or when you won’t be using it for an extended period of time.

If this seems like more work than you’re willing to do, you can always hire a professional to clean your window air conditioner for you. To find someone, ask your friends and family for referrals or contact reputable service providers in your area.

But whether you decide to hire an expert or clean it yourself, just make sure you stick to a regular cleaning schedule. Clean your filter at least monthly and spray your unit with hydrogen peroxide to ward off mold.