It’s been a long, hot summer and your air conditioner has been working hard to keep you cool. But now, it’s just not cutting it anymore. Your energy bills are skyrocketing, the air coming out of the vents is tepid at best, and the unit is making some pretty concerning noises. It’s time for a replacement. But where do you begin? With so many options and variables to consider, replacing an air conditioner may seem like a daunting task. But fear not, this guide will walk you through the process from start to finish, so you can stay cool and comfortable in your home.

1. Assessing Your Needs: Deciding Which Air Conditioner to Replace and When


Before you proceed with replacing your air conditioner, you need to assess your needs. This includes deciding which AC unit needs replacing and when is the right time to do it. This article aims to help you with this process, so keep reading to learn more about assessing your needs for AC replacement.

Which Air Conditioner to Replace and When

One of the first things you need to consider is whether you should replace your entire AC unit or just some parts of it. If your AC unit is old and has been breaking down frequently, then it might be best to replace the entire system. On the other hand, if only one part of your AC unit is malfunctioning, you may be able to replace just that part.

Another thing you need to consider is the age of your AC unit. Most air conditioners have an average lifespan of 15-20 years. If your AC unit is approaching this age range or has already exceeded it, then it might be time to replace it. Additionally, if your AC unit is no longer energy-efficient and is costing you more money in utilities, then it’s also a good time to consider a replacement.

Finally, you need to assess your personal needs. What are the features you need in an AC unit? Do you need a larger or smaller unit? Do you want a specific brand or model? All of these factors should be taken into account when deciding which air conditioner to replace and when.


Assessing your needs is an important step in deciding whether to replace your air conditioner. By considering the age of your unit, its energy-efficiency, and your personal needs, you can make an informed decision on which unit to replace and when. In the following sections, we will discuss how to prepare for replacement, remove the old unit, and install the new one, so stay tuned.

2. Preparing for Replacement: Tools, Safety Precautions, and Disposing Old Units

Before replacing your air conditioner, it is essential to prepare yourself and your environment for the task ahead. This section will discuss the necessary tools needed for the process, safety precautions to follow, and how to dispose of the old unit responsibly.

Tools Needed

To successfully replace your air conditioner, you will need specific tools such as screwdrivers, gloves, a wrench, a hammer, and a saw. You should also have access to electrical testing equipment, such as a voltage tester, to ensure that the electricity supply to the unit is turned off.

Safety Precautions

Replacing an air conditioner can be dangerous. Always remember to switch off the power supply to the unit before attempting any maintenance or repair tasks. It is also essential to use appropriate safety gear such as gloves, safety goggles, and sturdy footwear to avoid injuries.

It is also crucial to be mindful of the environment when replacing your air conditioner. Avoid releasing refrigerants into the atmosphere as they are harmful to the ozone layer. Instead, contact your local recycling centres for safe disposal.

Disposing Old Units

Old air conditioning units contain hazardous materials and should be disposed of safely and responsibly. Recycling centres are the best place to dispose of your old unit as they have the necessary skills to dismantle and recycle the various components. Some retailers might offer to dispose of your old unit for you upon purchase of a new one.

In conclusion, it is essential to prepare adequately for the replacement process by having the right tools, following safety precautions, and disposing of the old unit responsibly. By doing so, you can replace your outdated air conditioner without any hassle.

3. Removing the Old AC: Tips for Dismantling and Taking Out Your Air Conditioner

In this section, we will discuss the necessary steps for removing the old air conditioner. Before starting the process of removing the old unit, make sure to turn off the power at the breaker and disconnect the wires from the old unit.

Dismantling the Old AC

The first step in dismantling the old AC is to remove the grill covering the unit and the housing panels. Using a screwdriver, unscrew the screws that hold the grill and the housing panels in place. After that, remove the insulation lining the exterior of the unit.

Next, you need to disconnect the refrigerant lines from the unit by using refrigerant recovery equipment and following safe disposal guidelines. You can also enlist the help of a professional to avoid any potential danger.

Taking Out the Old AC

After the dismantling process, you can now take out the old AC from its location. The unit may have mounting hardware that needs to be removed, so make sure to remove it carefully. You may also need to lift the unit out of its location, so make sure to enlist the help of another person.

If the old unit is located on an upper level, get professional help to ensure a safe and proper removal. After the unit is removed, dispose of it properly following local guidelines.

In the next section, we will provide a step-by-step guide to installing a new air conditioner.

4. Installing the New AC: A Step-by-Step Guide to Replacing Your Air Conditioner

Installing a new air conditioner can be a daunting task, but with the right tools and a step-by-step guide, it can be completed with ease. This section will provide you with a comprehensive guide on how to install your new AC unit.

Step 1: Position the Unit

Firstly, you need to determine which room you want to install your air conditioner. It’s recommended to choose a room that has an electric wall outlet nearby. Once you have selected the room, find an optimal spot to place your air conditioning unit. Ensure that the unit is not obstructing any walking paths or fire exits.

Step 2: Install the Brackets

Next, attach the mounting brackets that come with your new unit onto the backside of your AC. Following the manufacturer’s instructions, secure the brackets to the wall using wall screws and level the unit.

Step 3: Connect the Electrical Wires

Carefully connect the electrical wires to the unit as positioned in the manual, and turn the breaker back on.

Step 4: Insert the Air Filter

It is necessary to insert the filter that comes along with the new unit onto the opening side of the AC. This will ensure that the air circulated in the room is clean and free of debris.

Step 5: Check the Air Flow

After installation, turn on the unit and wait for a few minutes to see if it is functioning properly. Check if there is proper air flow, adequate cooling, and no unusual sounds or vibrations coming from the unit.

By following these steps and checking all safety precautions, you can install your new air conditioning unit easily and enjoy comfortable, cool air.

5. Testing the New AC: Checking for Proper Function and Addressing Common Issues

After installing your new air conditioner, it’s crucial to ensure its proper functionality to avoid any issues in the future. Here are a few tips on how to test your new AC to make sure it’s working correctly.

Turn on the Power and Adjust the Thermostat

Before testing your new AC, ensure that the electrical and power connections are safe and secure. Once you have confirmed these, turn on the power and adjust your thermostat to the desired temperature. Listen for a humming sound, which indicates that the system is on or working. If you don’t hear the sound, your AC might not be receiving power or might have faulty wiring, and you should contact a professional to help fix it.

Check the Airflow and Temperatures

The next step is to check the airflow and temperatures of your new AC. First, go to the air handler, and feel the air coming out from the vents. Verify that the air is cold and strong, indicating that the AC’s compressor is working correctly. You can use an infrared thermometer to check the temperatures, which should be between 12 and 20 degrees cooler than the room temperature.

Addressing Common Issues

If you notice any problems with your new AC during the testing process, it’s crucial to address them promptly. Some common issues include insufficient airflow, poor temperature regulation, leaking refrigerant, or strange noises. Most of these problems can be easily addressed by AC professionals, who will diagnose the problem and perform the necessary repairs or replacements. Don’t wait for the problem to escalate since it may be more costly to repair or, worse, require a new AC altogether.

6. Maintaining Your New AC: Tips for Keeping Your Air Conditioner in Top Shape

Now that you have replaced your old AC with a new one, you would want it to work efficiently for years to come. However, like any other appliance, air conditioners require regular maintenance to operate at their best. Here are a few steps you can take to ensure your new AC runs smoothly:

1. Clean Your Filters Regularly

One of the simplest maintenance tasks you can do is to clean or replace your air filters regularly. Dirty filters restrict airflow and make your AC work harder, leading to higher energy bills and decreased efficiency. Depending on the type of filter, it is recommended to clean or replace it every one to three months.

2. Keep Your Outdoor Unit Clean

The outdoor unit of your AC can get clogged with debris like leaves, twigs, and dirt. This can reduce the efficiency of your AC and even cause damage to the unit. To prevent this, make sure to clean the outdoor unit regularly, especially during fall and winter.

3. Schedule Annual Maintenance

While regular cleaning and maintenance can go a long way, it is always a good idea to have a professional inspect and service your AC once a year. An HVAC technician can check for leaks, refrigerant levels, and electrical connections and make sure everything is working correctly.

By following these tips, you can extend the life of your new AC and keep it running efficiently. Remember, proper maintenance not only keeps your AC in top shape but also saves you money on energy bills and repair costs in the long run.

7. Understanding Warranties: Protecting Your Investment and Knowing Your Coverage

When purchasing a new air conditioner, it is important to understand the warranties offered by the manufacturer and installer. Knowing what is covered, how long coverage lasts, and what actions may void the warranty can save you time and money in the long run.

Manufacturer Warranties

Most air conditioning units come with a manufacturer’s warranty that covers parts and labor for a certain period of time. Typically, this coverage lasts between 5 and 10 years, although some manufacturers offer longer warranties. It is important to read the details of the warranty carefully, as there may be exclusions or limitations.

TIP: Keep a copy of the warranty in a safe place and be sure to complete any registration requirements to ensure your coverage is valid.

Installer Warranties

In addition to the manufacturer’s warranty, many installers offer their own warranty for their workmanship. This may cover any installation errors or problems that arise due to faulty installation. Be sure to ask your installer about their warranty and understand what is covered.

TIP: Choose an installer with a good reputation and ask for references to ensure quality workmanship.

Maintaining Your Warranty

To maintain the warranty on your new air conditioner, it is important to follow the manufacturer’s recommended maintenance schedule. This may include regular cleaning and inspections, as well as any necessary repairs. Failure to maintain your unit properly may void the warranty.

TIP: Keep a record of any maintenance performed on your air conditioner, including the date and details of the service.

Understanding and maintaining your air conditioner warranty is crucial to protecting your investment and ensuring proper coverage in case of unexpected repairs. Be sure to read the warranty details carefully, choose a reputable installer, and follow the recommended maintenance schedule to keep your new air conditioner in top shape.

People Also Ask:

1. How do I know if I need to replace my air conditioner?

If your air conditioner is more than 10-15 years old, is not cooling your home properly, has frequent breakdowns, requires costly repairs, or can’t keep up with your cooling demands, it might be time to consider replacing it.

2. How much does it cost to replace an air conditioner?

The cost of replacing an air conditioner depends on various factors like the type, size, and efficiency of the unit, as well as the cost of installation and any additional upgrades or modifications. Generally, the cost can range from $3,500 to $7,500.

3. Can I install an air conditioner myself?

While it’s possible to install an air conditioner yourself, it’s not recommended as it can be dangerous, complicated, and may void your warranty. It’s best to hire a licensed and experienced HVAC professional to ensure that your air conditioner is installed correctly and safely.

4. How long does it take to replace an air conditioner?

The time it takes to replace an air conditioner can vary depending on the complexity of the installation, the size and type of the unit, and any necessary modifications. Generally, it can take anywhere from 4-8 hours to complete the installation.

5. What should I look for when replacing my air conditioner?

When replacing your air conditioner, consider factors like the size and efficiency of the unit, the age and condition of your ductwork, the cost and ROI of the unit, any additional features or upgrades, and the reputation and experience of the HVAC contractor.


Replacing an air conditioner is a significant investment, and it’s essential to do your research and work with a reputable and experienced HVAC contractor. By considering factors like the size, efficiency, cost, and features of the unit, and hiring a professional to install it, you can ensure that your new air conditioner will provide reliable and efficient cooling for years to come.