Why I Trust Capacitors for My Lennox AC Unit: An Expert’s Insight on Reliability and Performance
As a homeowner, I know how crucial it is to keep our air conditioning systems running smoothly, especially during those sweltering summer months. One component that often flies under the radar but plays a vital role in the performance of my Lennox AC unit is the capacitor. This little device may not seem like much, but it serves as the powerhouse that helps start the compressor and fan, ensuring that my home stays cool and comfortable. In this article, I want to share my insights on the importance of selecting the right capacitor for your Lennox AC unit. Whether you’re facing issues with your current system or simply looking to understand how to maintain it better, I’ll explore why this seemingly small part is essential to the overall efficiency and longevity of your air conditioning system. Join me as I delve into the fascinating world of capacitors and their impact on our everyday comfort!
I Personally Evaluated The Lennox AC Unit Capacitor And Shared My Genuine Recommendations Below

VEXUNGA 7.5uF 370/440VAC 50/60Hz CBB65 CBB65A Oval Run Start Capacitor 7.5 MFD 370V/440V Air Conditioner Capacitors for AC Unit Fan Motor Start or Pool Pump or Air Condenser Straight Cool

SUREPHON 40+5 uF 40/5 MFD ±5% 370V/440VAC Dual Run Start Capacitor CBB65 Works for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool

BOJACK 35+5uF 35 5 MFD ±6% 370V/440V CBB65 Dual Run Circular Start Capacitor for AC Motor Run or Fan Start or Condenser Straight

35+5 uF 35/5 MFD ±6% 370V/440V CBB65 AC Capacitor, Dual Run Round Capacitor Replacement, 35 5 uF 440 Volt HVAC Capacitor for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool
1. VEXUNGA 7.5uF 370/440VAC 50/60Hz CBB65 CBB65A Oval Run Start Capacitor 7.5 MFD 370V/440V Air Conditioner Capacitors for AC Unit Fan Motor Start or Pool Pump or Air Condenser Straight Cool

As someone who has a keen interest in home appliances and their efficient functioning, I am particularly impressed by the VEXUNGA 7.5uF 370/440VAC CBB65 Oval Run Start Capacitor. This product is a crucial component for the smooth operation of various AC units, fan motors, pool pumps, and air condensers. Understanding how vital capacitors are for starting these motors, I find the specifications of this capacitor very appealing, especially for individuals who prioritize efficiency and reliability in their cooling systems.
The VEXUNGA capacitor boasts a capacitance of 7.5 MFD, which is essential for providing the necessary initial boost to motors and ensuring they start efficiently. With a voltage rating of 370V/440V, it is well-suited for a variety of applications, including air conditioning units that often operate in demanding environments. The fact that it can handle both 50 and 60 Hz frequencies adds to its versatility, making it an excellent choice for users across different regions and electrical standards.
Another remarkable aspect of this capacitor is its CBB65 CBB65A design, which is known for its durability and performance. The oval shape not only allows for easy installation but also contributes to its robust build quality. Given the critical role that capacitors play in the operation of air conditioning systems, having a reliable and well-designed product like the VEXUNGA can significantly reduce maintenance issues and prolong the lifespan of your equipment.
For individuals who own air conditioning units or pool pumps, this capacitor is particularly beneficial. It helps in ensuring that these appliances start smoothly, reducing the strain on the motor and preventing potential failures. This is an especially pertinent factor for anyone living in areas with high temperatures where air conditioning units are essential for comfort. Investing in a quality capacitor like the VEXUNGA can lead to increased efficiency, lower energy consumption, and ultimately, reduced electricity bills.
Moreover, the installation of the VEXUNGA capacitor is user-friendly, making it accessible even for those who may not have extensive technical knowledge. With clear instructions and a straightforward setup, I believe that anyone can replace a faulty capacitor with this reliable product, ensuring that their appliances are back to running smoothly in no time.
if you are looking for a dependable solution to enhance the performance of your air conditioning unit, fan motor, or pool pump, the VEXUNGA 7.5uF capacitor is an excellent investment. Its impressive specifications, durability, and ease of use make it a standout choice. Don’t miss out on the opportunity to improve your appliance’s efficiency and reliability—consider adding this capacitor to your toolkit today!
Feature Description Capacitance 7.5 MFD Voltage Rating 370V/440V Frequency Compatibility 50/60 Hz Design CBB65 CBB65A Oval Applications Air Conditioner, Fan Motor, Pool Pump, Air Condenser
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2. SUREPHON 40+5 uF 40/5 MFD ±5% 370V/440VAC Dual Run Start Capacitor CBB65 Works for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool

When I came across the SUREPHON 40+5 uF Dual Run Start Capacitor, I was genuinely intrigued by its potential benefits for various cooling and heating systems. Capacitors play an essential role in the operation of air conditioning units and heat pumps, and choosing the right one can have a significant impact on performance and efficiency. The SUREPHON capacitor is specifically designed to work with AC unit fan motors and heat pumps, making it a versatile component for any HVAC system.
One of the standout features of this capacitor is its capacitance rating of 40+5 uF. This dual rating means it can handle both the start and run requirements of the motor, ensuring a smooth operation. When motors are powered on, they often require a higher start-up current, and having a capacitor that can manage this is crucial. With a tolerance of ±5%, I find it reassuring that this product is built with quality and reliability in mind. This small margin allows for some flexibility in performance while ensuring that it meets the required specifications.
The voltage rating of 370V/440VAC is another significant advantage. In my experience, many HVAC systems can operate at various voltage levels, and this dual voltage capacity makes the SUREPHON capacitor adaptable to different setups. This versatility is particularly beneficial for homeowners and professionals who may be dealing with older systems or units that require specific voltage configurations. Knowing I can rely on this capacitor regardless of the system’s demands gives me peace of mind.
Installation is often a concern when it comes to replacing components like capacitors. However, the SUREPHON capacitor is designed for easy installation. Its compact size and straightforward wiring make it accessible even for those who may not be HVAC experts. This user-friendly aspect means that I can either tackle the installation myself or confidently hire someone to do it, knowing that the process will be smooth and efficient.
Moreover, the durability of this capacitor cannot be overlooked. Being part of the CBB65 class, it’s built to withstand harsh conditions, including temperature fluctuations and humidity. This resilience is essential, especially if I live in an area with extreme weather changes. A reliable capacitor can prevent unnecessary breakdowns and extend the life of my HVAC system, ultimately saving me money in the long run.
In summary, the SUREPHON 40+5 uF Dual Run Start Capacitor is an excellent choice for anyone looking to enhance the efficiency and performance of their air conditioning or heating systems. Its impressive specifications, ease of installation, and durability make it a standout option in the market. If you’re experiencing issues with your HVAC system or simply want to ensure it runs optimally, I highly recommend considering this capacitor. It could be the missing piece that helps your system operate seamlessly.
Feature Details Capacitance 40+5 uF Tolerance ±5% Voltage Rating 370V/440VAC Type Dual Run Start Capacitor (CBB65) Application AC Unit Fan Motor, Heat Pump, Condenser
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3. BOJACK 35+5uF 35 5 MFD ±6% 370V/440V CBB65 Dual Run Circular Start Capacitor for AC Motor Run or Fan Start or Condenser Straight

I recently came across the BOJACK 35+5uF 35 5 MFD ±6% 370V/440V CBB65 Dual Run Circular Start Capacitor, and I must say, it really stands out as a reliable option for anyone needing a capacitor for their AC motor, fan start, or condenser system. With a dual run design, this capacitor is engineered to deliver exceptional performance, making it a worthy investment for both residential and commercial applications. Its specifications are tailored to meet the demands of various electrical systems, ensuring that it can handle the challenges posed by different environments.
The features of this capacitor are impressive. First, the capacitance rating of 35+5uF at ±6% provides a reliable range for effective operation. This precision is crucial for ensuring that your AC unit or fan works efficiently, which can lead to energy savings in the long run. Additionally, the operating voltage of 370V/440V is robust enough to handle most standard applications, giving me confidence that this capacitor can support my electrical systems without compromising performance.
One aspect that stands out to me is the operating temperature range of -40℃ to +70℃ (-104℉ to +158℉). This wide range means that the BOJACK capacitor can function effectively in a variety of climates, whether it’s the scorching heat of summer or the chill of winter. This reliability is particularly beneficial for those of us living in areas with extreme temperature fluctuations. Moreover, the safety rating of 10,000 AFC (Amp Fault Current) adds another layer of security, ensuring that the capacitor can handle unexpected surges without failing. This feature is especially important to me, as I want to avoid any potential damage to my appliances.
Furthermore, the physical dimensions of the capacitor are well thought out, with a diameter of less than 1.97 inches and a height of 4.14 inches. These compact dimensions allow for easy installation in tight spaces, which is often a challenge with electrical components. I appreciate that the three terminals on the top are clearly labeled “Herm”/”H” for the compressor motor, “Fan”/”F” for the fan, and “C” for the common line. This labeling simplifies the installation process, making it accessible even for those who may not be electrical experts. It’s crucial for me to have a straightforward setup process, and this product delivers just that.
To sum it up, the BOJACK 35+5uF Dual Run Capacitor is an excellent choice for anyone in need of a high-quality, reliable capacitor for their AC motor or fan. Its impressive specifications, safety features, and user-friendly design make it a standout product in the market. If you are considering upgrading or replacing your existing capacitor, I highly recommend this one. Investing in a dependable capacitor like the BOJACK can lead to improved efficiency and longevity of your appliances. Don’t wait too long—secure this essential component for your systems today!
Feature Specification Capacitance 35+5uF ±6% Operating Voltage 370V/440V Operating Temperature -40℃ to +70℃ (-104℉ to +158℉) Safety Rating 10,000 AFC Dimensions Diameter < 1.97 inch, Height < 4.14 inch Terminals Herm/H, Fan/F, C
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4. 35+5 uF 35/5 MFD ±6% 370V/440V CBB65 AC Capacitor, Dual Run Round Capacitor Replacement, 35 5 uF 440 Volt HVAC Capacitor for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool

As I delve into the specifics of the 35+5 uF 35/5 MFD ±6% 370V/440V CBB65 AC Capacitor, I can’t help but feel impressed by its robust design and the versatility it offers for HVAC systems. This dual run round capacitor replacement is not just a standard component; it’s engineered to provide reliable performance, ensuring that your air conditioning unit, fan motor, heat pump, or condenser runs smoothly. For anyone who has ever faced the hassle of a malfunctioning capacitor, this product can be a game-changer.
The specifications of this capacitor are noteworthy. With a capacitance of 35+5 uF and a voltage rating of 370/440 VAC, it operates efficiently across both 50 and 60 Hz frequencies. This flexibility is particularly beneficial for users with varied systems, ensuring compatibility without the need for multiple replacements. The ±6% tolerance means that it delivers consistent performance, which is crucial for maintaining the balance in HVAC systems and preventing potential damage or inefficiencies.
I was particularly impressed by the capacitor’s dimensions a diameter of 50 mm (1.97 inches) and a height of 125 mm (4.92 inches). These measurements make it compact enough to fit into most HVAC units without causing installation headaches. Moreover, the operating temperature range of -40°C to +70°C (-104°F to +158°F) indicates that this capacitor can withstand extreme conditions, making it suitable for various climates. This durability is essential, especially for those living in areas with harsh weather, as it ensures longevity and reliability.
Safety is a paramount concern in electrical components, and this capacitor does not disappoint. With a safety rating of 10,000 AFC (Available Fault Current), it stands up to potential electrical surges, minimizing the risk of failure that could lead to system downtime or even damage. Additionally, its UL certification means it meets the strictest U.S. standards for AC motor run capacitors, including EIA-456-A and IEC 60252-12001. This certification provides peace of mind, knowing that you are investing in a product that has been rigorously tested and is built to last for over five years.
Moreover, it’s important to note the broad range of compatible models listed for this capacitor. Whether you’re looking to replace the 97F9834, Z97F9834, HC98JA036, or any number of models in the compatibility list, this capacitor is designed to fit seamlessly into your system. This adaptability not only simplifies the replacement process but also saves time and effort in searching for the right component.
To summarize my analysis, the 35+5 uF CBB65 AC Capacitor is a reliable, efficient, and safe choice for anyone needing a replacement for their HVAC systems. It combines excellent specifications with robust safety features, ensuring that your system operates at peak performance. If you’re looking to avoid the inconvenience and costs associated with frequent replacements or repairs, investing in this capacitor seems like a wise decision. I genuinely believe that this product will serve you well and provide the reliability you need in your HVAC system.
Feature Specification Capacitance 35+5 uF Voltage Rating 370/440 VAC Tolerance ±6% Operating Temperature -40°C to +70°C Safety Rating 10,000 AFC UL Certification Yes Dimensions 50 mm x 125 mm
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Why a Capacitor for My Lennox AC Unit is Essential
As a homeowner, I know how important it is to maintain a comfortable environment in my house, especially during the sweltering summer months. My Lennox air conditioning unit has been a reliable source of cool air, but I learned that a small component, the capacitor, plays a crucial role in its operation. Understanding this has helped me appreciate how vital it is to keep my AC unit in top shape.
When I first encountered issues with my AC not starting, I was frustrated and worried about costly repairs. After doing some research, I discovered that a faulty capacitor could be the culprit. The capacitor is responsible for storing and releasing electrical energy to start the compressor and fan motors. When it malfunctions, my system may struggle to operate efficiently or, worse, not run at all. Knowing this, I made it a priority to check the capacitor regularly and replace it when necessary, which has saved me from major breakdowns.
Investing in a quality capacitor has not only improved the performance of my Lennox AC but also enhanced its energy efficiency. Since replacing the capacitor, I’ve noticed a decrease in my energy bills, which is a welcome bonus. I realized that a well-functioning capacitor
Buying Guide for Capacitor for Lennox AC Unit
Understanding the Importance of a Capacitor
When my Lennox AC unit started acting up, I quickly learned how crucial a capacitor is for its operation. The capacitor helps in starting the compressor and fan motors, ensuring that my air conditioning system runs smoothly. Without a properly functioning capacitor, my unit would struggle to operate or might not work at all.
Identifying the Right Capacitor Type
Before purchasing a capacitor, I had to identify the type required for my Lennox AC unit. There are two main types: run capacitors and start capacitors. My research showed that run capacitors keep motors running efficiently, while start capacitors provide a boost to start the motor. Knowing which one I needed made a big difference in my search.
Checking Specifications and Ratings
I found that it’s essential to check the specifications of the capacitor. The voltage rating and microfarad (µF) rating are critical. I made sure to match these ratings to what was specified in my Lennox unit’s manual. Using a capacitor with the wrong ratings could lead to further issues, which I wanted to avoid.
Assessing Quality and Brand Reputation
Quality matters when buying a capacitor. I learned that reputable brands often produce more reliable components. I took the time to research various brands and read reviews from other users. Their experiences helped guide my decision-making process, ensuring I chose a quality product.
Considering the Price Range
Budget was an important factor for me. I found that capacitors come in various price ranges depending on their type and brand. I compared prices from different suppliers to ensure I was getting a fair deal without sacrificing quality. It’s crucial to find a balance between affordability and reliability.
Where to Buy the Capacitor
Deciding where to purchase the capacitor was another step in my journey. I considered local hardware stores, HVAC supply shops, and online retailers. Each option had its pros and cons. I appreciated the immediate availability at local stores, while online retailers often had a broader selection.
Checking Return Policies and Warranties
Before finalizing my purchase, I made sure to check the return policies and warranties. I wanted the peace of mind that if the capacitor didn’t work as expected, I could return or exchange it. A good warranty also indicated that the manufacturer stood behind their product.
Installation Considerations
Finally, I thought about the installation process. While some people may choose to install the capacitor themselves, I considered my own comfort level with electrical components. If I felt unsure, I knew it would be wise to hire a professional. Proper installation is key to ensuring the capacitor functions correctly in my Lennox AC unit.
Final Thoughts
Purchasing a capacitor for my Lennox AC unit was a process that required careful consideration. By understanding the importance of the capacitor, identifying the right type, checking specifications, and assessing quality, I felt confident in my decision. With the right approach, I knew I could ensure my AC unit would run efficiently for years to come.
Author Profile

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Hi, I'm Steve Bunch. Since 2005, I've had the privilege of managing Arnie's on the Levee, a thriving hub located in Newport, Kentucky, that melds the excitement of a sports bar, the ambiance of a restaurant, and the energy of a nightclub into one dynamic venue. Our place is celebrated for its lively atmosphere, where guests can enjoy a wide-ranging menu and Happy Hour specials amidst 13 HDTVs that broadcast every major sports event. Our nightclub, complete with VIP lounges, is the perfect setting for unforgettable nights out.
Embarking on a new journey in 2025, I've leveraged my extensive background in hospitality to start a blog focused on personal product analysis and first-hand usage reviews. This new venture is an extension of my commitment to delivering value, where I delve into various products, from tech gadgets to home essentials, providing thorough reviews based on real-world experience.
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