Air conditioning is essential for maintaining comfort in your home, especially during the hot summer months in Phoenix. When it comes to AC installation in Phoenix, you want to ensure that the process is done correctly to avoid any potential problems down the line. Unfortunately, many homeowners make common mistakes when installing their air conditioning units, leading to inefficiencies, higher energy costs, and the need for AC repair in Phoenix, AZ.

At LJ Refrigeration Co., Inc., we understand the importance of a properly installed air conditioner, so we’ve compiled a list of the seven most common AC installation mistakes and how to avoid them. By following these tips, you’ll save money on your energy bills and extend the life of your HVAC system.

1. Incorrect Sizing of the Air Conditioner

One of the most common mistakes during AC installation in Phoenix is choosing an air conditioner that is either too small or too large for your home. An undersized unit will struggle to cool your home efficiently, leading to excessive wear and tear. In contrast, an oversized unit will cycle on and off frequently, wasting energy and causing uneven temperatures.

How to Avoid: To avoid this mistake, consult with a professional HVAC company like LJ Refrigeration Co., Inc. Our experts will perform a load calculation to determine the correct size of the air conditioner for your home, ensuring optimal performance and energy efficiency.

2. Poor Airflow and Ductwork Design

Another common issue with AC installations is poor airflow due to improper ductwork design or installation. This can lead to hot and cold spots in your home, reduced efficiency, and increased strain on your HVAC system.

How to Avoid: Ensure that your ductwork is properly designed and installed by working with a reputable HVAC company. Our team at LJ Refrigeration Co., Inc. specializes in HVAC repair in Phoenix, AZ. It can assess your ductwork to ensure it is properly sized, sealed, and insulated for optimal airflow and efficiency.

3. Incorrect Thermostat Placement

The location of your thermostat plays a crucial role in the overall performance of your air conditioning system. If placed in direct sunlight or near heat-generating machinery, your thermostat may register a higher temperature than the actual room temperature, causing your AC to run longer than necessary.

How to Avoid: When installing a thermostat, choose a location on an interior wall away from direct sunlight, drafts, and heat sources. A professional HVAC technician from LJ Refrigeration Co., Inc. can help you determine the best thermostat placement for optimal performance.

4. Insufficient Refrigerant Levels

Your air conditioner requires the proper amount of refrigerant to function efficiently. Incorrect refrigerant levels can lead to reduced cooling capacity, higher energy bills, and potential damage to your HVAC system.

How to Avoid: Always have your AC tune-up in Phoenix, AZ performed by a licensed and experienced technician, like those at LJ Refrigeration Co., Inc. Our team will ensure that your air conditioner is charged with the correct amount of refrigerant for optimal performance and energy efficiency.

5. Ignoring Indoor Air Quality

Many homeowners focus solely on temperature control when installing a new air conditioner, overlooking the importance of indoor air quality. Poor indoor air quality can lead to respiratory issues, allergies, and other health problems.

How to Avoid: Choose an air conditioner with a high-quality air filter and consider adding supplementary air purification systems, such as UV lights or air purifiers. Our HVAC experts at LJ Refrigeration Co., Inc. can help you select the best air quality solutions for your home.

6. Neglecting Proper Insulation

Inadequate insulation in your home can lead to significant energy loss, making your air conditioner work harder and less efficiently. This can result in higher energy bills and a shortened lifespan for your HVAC system.

How to Avoid: Consult an insulation expert to ensure your home is properly insulated. LJ Refrigeration Co., Inc. can assess your home’s insulation and recommend any necessary upgrades to improve your air conditioner’s efficiency and performance.

7. Skipping Regular Maintenance

Regular maintenance is essential for the longevity and efficiency of your air conditioning system. Skipping maintenance can lead to reduced performance, higher energy costs, and the need for more frequent AC repair in Phoenix.

How to Avoid: Schedule regular preventative maintenance with a reputable HVAC company like LJ Refrigeration Co., Inc. Our technicians will inspect, clean, and tune up your air conditioner to ensure it operates at peak performance and efficiency.

Why Choose LJ Refrigeration Co., Inc. for Your AC Installation and Repair Needs

When it comes to your home’s comfort, you deserve the best service and expertise available. At LJ Refrigeration Co., Inc., we pride ourselves on our commitment to providing exceptional AC installation and repair services in Phoenix. Here are just a few reasons why you should choose us for all your HVAC needs:

• NATE Certified Technicians

Our team of technicians is NATE (North American Technician Excellence) certified, which means they have undergone rigorous training and testing to ensure they possess the knowledge and skills necessary to provide top-quality service. When you choose LJ Refrigeration Co., Inc., you can rest assured that our technicians are among the best in the industry.

• Serving Since 1981

With over 40 years of experience, LJ Refrigeration Co., Inc. has built a reputation for excellence in AC installation, repair, and maintenance. Our long-standing presence in the Phoenix area is a testament to our commitment to customer satisfaction and our ability to adapt to the latest advancements in HVAC technology.

• 24/7 Emergency Service

We understand that HVAC issues can arise anytime, so we offer 24/7 emergency service for your convenience. Whether it’s a weekend, holiday, or the middle of the night, our team is always ready to respond quickly and efficiently to your AC repair needs.

• Licensed, Bonded, and Insured

At LJ Refrigeration Co., Inc., we take our responsibility to our clients seriously. We are fully licensed, bonded, and insured, so you can have peace of mind knowing that you are protected when you choose us for your HVAC needs.

• 5-Star Reviews

Customer satisfaction is our top priority, and our numerous 5-star reviews are a testament to our dedication to exceptional service. We strive to exceed our client’s expectations by delivering high-quality AC installation, repair, and maintenance services in a timely and professional manner.

By choosing LJ Refrigeration Co., Inc. for your AC installation and repair needs, you are investing in the comfort and safety of your home. Our team of NATE-certified technicians, extensive experience, and commitment to customer satisfaction make us the ideal choice for all your HVAC needs in Phoenix. Contact us today to schedule an appointment and experience the difference in working with a trusted, reliable, and experienced HVAC company.


By avoiding these common AC installation mistakes, you can ensure that your air conditioner operates efficiently and effectively, keeping your home comfortable all year long. LJ Refrigeration Co., Inc. is committed to providing our clients with top-notch AC installation, AC repair, and AC repair in Scottsdale, AZ. Our experienced and certified technicians will work with you to ensure your air conditioning system is installed correctly and maintained for optimal performance.

Don’t leave your comfort to chance – contact LJ Refrigeration Co., Inc. today to schedule an appointment for your AC installation or repair needs.