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Keep your home comfortable: a beginner’s guide to installing side-opening window acs

Rob is a seasoned home improvement writer with over 15 years of experience researching and recommending products for the home. Prior to starting Nurturing Homeaid, he wrote extensively for This Old House magazine and has been featured as a home expert on several TV and radio programs. An avid DIY-er,...

What To Know

  • Installing a side-opening window air conditioner can be a daunting task, but with the right knowledge and preparation, you can enjoy cool comfort in no time.
  • If the air conditioner is not fitting snugly in the window frame, you can use window shims to fill the gaps.
  • It is generally safe to leave a window air conditioner running unattended, but it is always best to unplug the unit when you are not home for extended periods.

Installing a side-opening window air conditioner can be a daunting task, but with the right knowledge and preparation, you can enjoy cool comfort in no time. This step-by-step guide will provide you with all the essential instructions to ensure a successful installation.

Materials You’ll Need

  • Side-opening window air conditioner
  • Screwdriver
  • Level
  • Measuring tape
  • Pencil
  • Caulk gun
  • Foam insulation
  • Window shims (optional)

Step 1: Measure and Mark the Window Frame

Measure the width of your window opening.
Mark the center point on the top and bottom of the window frame.
Measure the height of your window opening.
Draw a horizontal line across the top and bottom of the window frame, using the center marks as a guide.

Step 2: Install the Mounting Brackets

Attach the mounting brackets to the sides of the air conditioner.
Align the brackets with the horizontal lines you drew on the window frame.
Secure the brackets to the window frame using the provided screws.

Step 3: Position the Air Conditioner

Lift the air conditioner onto the mounting brackets.
Use a level to ensure the air conditioner is level.
Adjust the brackets if necessary.

Step 4: Secure the Air Conditioner

Insert the side panels into the mounting brackets.
Tighten the screws to secure the side panels.
Check that the air conditioner is securely installed.

Step 5: Seal the Gaps

Apply a bead of caulk around the perimeter of the air conditioner.
Smooth the caulk with your finger or a putty knife.
Insert foam insulation into any gaps between the air conditioner and the window frame.

Step 6: Install the Window Shims (Optional)

If the air conditioner is not fitting snugly in the window frame, you can use window shims to fill the gaps.
Insert the shims between the air conditioner and the window frame.
Secure the shims with tape or screws.

Step 7: Connect the Power

Plug the air conditioner into a grounded electrical outlet.
Turn on the air conditioner and test it.

Troubleshooting Tips

  • The air conditioner is not cooling properly: Check if the air filter is dirty and clean it if necessary. Ensure that the air vents are not blocked.
  • The air conditioner is leaking water: Check if the drain hose is clogged and clean it if necessary. Ensure that the air conditioner is level.
  • The air conditioner is making a loud noise: Check if there are any loose parts and tighten them if necessary. Clean the condenser coils and fan blades.

What You Need to Learn

Q: Can I install a side-opening window air conditioner in a double-hung window?
A: Yes, you can use a side-opening window air conditioner in a double-hung window. However, you may need to purchase a special bracket that allows the air conditioner to fit in the window.

Q: How often should I clean my window air conditioner?
A: You should clean your window air conditioner every two to three months to ensure optimal performance and prevent buildup.

Q: Is it safe to leave a window air conditioner running unattended?
A: It is generally safe to leave a window air conditioner running unattended, but it is always best to unplug the unit when you are not home for extended periods.

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Rob Sanders

Rob is a seasoned home improvement writer with over 15 years of experience researching and recommending products for the home. Prior to starting Nurturing Homeaid, he wrote extensively for This Old House magazine and has been featured as a home expert on several TV and radio programs. An avid DIY-er, Rob takes pride in testing out the latest tools and gadgets to see how they can make home projects easier. When it comes to heating systems, he's evaluated over 50 different furnace and boiler models over the years. Rob founded Nurturing Homeaid with his business partner Jim in 2020 to provide homeowners with genuine product recommendations they can trust. In his free time, Rob enjoys remodeling old homes with his family and traveling to visit architectural landmarks across the country. He holds a bachelor's degree in Journalism from Syracuse University.
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