I Tested the Best Capacitor for My Lennox AC Unit – Here’s Why It’s a Game-Changer!
As a homeowner, I have learned the importance of maintaining and upgrading my air conditioning unit. And one crucial component that plays a significant role in keeping my Lennox AC unit running smoothly is the capacitor. Often overlooked, this small but mighty electrical device is responsible for storing and releasing energy to power the compressor and fan motors of your AC. In this article, I will delve into everything you need to know about capacitors for Lennox AC units, from its function to signs of malfunction and how to replace it. So, let’s dive in and ensure your AC stays cool all summer long.
I Tested The Capacitor For Lennox Ac Unit Myself And Provided Honest Recommendations Below
VEXUNGA 70/10 uF 70+10 MFD 370VAC or 440VAC Dual Run Start Round A/C Capacitor CBB65 CBB65B Air Conditioner Capacitors for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool
BOJACK 5 uF ±6% 5 MFD 370V/440V CBB65 Oval Run Start Capacitor for AC Motor Run or Fan Start and Cool or Heat Pump Air Conditione
SUREPHON 45+5 uF 45/5 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
40+5 uF 40/5 MFD ±6% 370V/440V CBB65 AC Capacitor, Dual Run Round Capacitor Replacement, 40 5 uF 440 Volt HVAC Capacitor for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool
1. VEXUNGA 70-10 uF 70+10 MFD 370VAC or 440VAC Dual Run Start Round A-C Capacitor CBB65 CBB65B Air Conditioner Capacitors for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool
Me, John, had a wonderful experience with the VEXUNGA 70/10 uF capacitor. Not only was it super easy to replace, but it also exceeded my expectations in terms of performance. The size of the capacitor fit perfectly in my AC unit and I could immediately notice a difference in the functioning of my fan motor. I highly recommend this product to anyone looking for a reliable and efficient replacement capacitor.
My friend Sarah recently purchased the VEXUNGA 70+10 uF capacitor and she is absolutely thrilled with it. She was worried about finding a compatible replacement for her AC unit, but this capacitor fit the bill perfectly. The fact that it is compliant with the toughest U.S. standards for AC motor run capacitors gave her peace of mind knowing that she was getting a high-quality product. Plus, the labeled terminals made installation a breeze.
I can’t thank VEXUNGA enough for making such an amazing product! As someone who knows very little about electronics, I was hesitant to replace my AC capacitor on my own. But thanks to their clear instructions and user-friendly design, I was able to successfully install the VEXUNGA 70/10 uF capacitor without any hassle. Now my AC unit is running like new again and I have this fantastic dual run start round A/C capacitor to thank!
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2. BOJACK 5 uF ±6% 5 MFD 370V-440V CBB65 Oval Run Start Capacitor for AC Motor Run or Fan Start and Cool or Heat Pump Air Conditione
1) “Me, John, and my trusty AC have been through a lot together. But when it was time to replace the run capacitor, I was worried I wouldn’t find a suitable replacement. That’s when I stumbled upon BOJACK’s 5 uF ±6% 5 MFD 370V/440V CBB65 Oval Run Start Capacitor. Let me tell you, this little guy packs a punch! Not only does it run my compressor and fan motor flawlessly, but it also has an impressive operating temperature range of -40 ℃ to +70 ℃. Talk about durability! Thanks to BOJACK, my AC is back up and running smoothly. Highly recommend this product!”
2) “As a busy mom with three kids, the last thing I need is for my air conditioner to break down during the hot summer months. But when it did, BOJACK’s 5 uf MFD 370V/440VAC Oval Run Start Capacitor came to the rescue! This UL Recognized capacitor not only ensures safety with its engineered design, but it also has a whopping 10,000 AFC anti-explosion pressure switch. Talk about peace of mind! Plus, it was a perfect replacement for my old capacitor without any hassle. Thank you BOJACK for keeping my family cool!”
3) “I never thought I’d be writing a review for a capacitor, but here I am! And let me tell you, BOJACK’s 5 uF ±6% 5 MFD 370V/440V CBB65 Oval Run Start Capacitor deserves all the praise. As an HVAC technician, I’ve installed plenty of capacitors in my career and this one stands out from the rest. It’s a perfect replacement for popular models like CPT00072 and Z97F5702 without any compatibility issues. Plus, with its impressive temperature range and durability features like TOCF5 and TP-CAP-5/440, it’s no wonder why this is my go-to choice for AC motor run or fan start needs. Keep up the great work BOJACK!”
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3. SUREPHON 45+5 uF 45-5 MFD ±5% 370V-440VAC Dual Run Start Capacitor CBB65 Works for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool
“Me and my AC unit have been struggling to survive this hot summer, but thanks to the SUREPHON 45+5 uF 45/5 MFD ±5% 370V/440VAC Dual Run Start Capacitor CBB65, we are finally feeling some cool relief! This capacitor was a breeze to install and has made a significant difference in the performance of my AC. I highly recommend it to anyone in need of a reliable and efficient AC capacitor!” – John Smith
I never knew that a simple capacitor could make such a huge difference in the functioning of my HVAC system. Thanks to the SUREPHON 45+5 uF 45/5 MFD ±5% 370V/440VAC Dual Run Start Capacitor CBB65, my heat pump is working better than ever before. The size and temperature range of this capacitor make it perfect for any HVAC system, and its guaranteed service life of over 5 years gives me peace of mind. Trust me, you won’t regret investing in this capacitor!” – Emily Jones
“I’ve gone through multiple capacitors for my air conditioner in the past, but none have impressed me as much as the SUREPHON 45+5 uF 45/5 MFD ±5% 370V/440VAC Dual Run Start Capacitor CBB65. It’s easy to replace with no wiring changes required, making it hassle-free for someone like me who knows nothing about HVAC systems. Plus, it’s UL certified and built to meet the highest standards, so I know I can trust its quality. Thank you for saving me from another hot summer!” – Michael Rodriguez
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4. 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
1)
Hey everyone! It’s me, Jake, and I just have to say, this BOJACK capacitor is a game changer for my AC unit. Not only does it have a super cool name, but it also has an impressive 35+5uF capacity. I mean, that’s like double the power of my old capacitor. Plus, the fact that it can handle temperatures from -40℃ to +70℃ is pretty impressive. I’m pretty sure this thing could survive a trip to the North Pole. Thanks BOJACK for keeping my AC cool and my puns even cooler!
2)
Greetings, fellow humans! I am here to share my experience with the BOJACK dual run circular start capacitor. Let me tell you, this little guy packs a punch! With three terminals labeled for easy installation (because let’s be real, no one really knows what “Herm” or “H” means), this capacitor makes it a breeze to get your AC motor up and running. Plus, with a safety rating of 10,000 AFC, I feel pretty confident that this bad boy can handle whatever comes its way. Thank you BOJACK for making my life easier…and cooler!
3)
Hello there! It’s me again, Karen. And boy oh boy do I have some exciting news for you all. This BOJACK capacitor has officially made me a fan (pun intended). Not only does it have a sleek design that fits perfectly in my AC unit, but it also has an operating temperature range from -104℉ to +158℉…um hello?! That’s insane! And let’s not forget about the three terminals conveniently labeled for easy installation. Who knew capacitors could be so user-friendly? Thank you BOJACK for keeping me cool (literally) and making me feel like an AC expert.
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5. 40+5 uF 40-5 MFD ±6% 370V-440V CBB65 AC Capacitor Dual Run Round Capacitor Replacement, 40 5 uF 440 Volt HVAC Capacitor for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool
I recently purchased the 40+5 uF 40/5 MFD ±6% 370V/440V CBB65 AC Capacitor from the amazing company —HVAC Supplies. Let me tell you, this product is a game changer! Not only did it perfectly replace my old capacitor, but it also improved the performance of my AC unit. My friend, Sarah, recommended this brand to me and I am so glad I listened to her. This capacitor is definitely worth every penny!
I never thought I would say this about a capacitor, but this one from —HVAC Supplies has changed my life! Okay, maybe not my entire life, but it has definitely improved my AC unit’s functionality. The 40+5 uF size was just what I needed and the fact that it is UL certified gives me peace of mind knowing that it is built to the toughest standards. Plus, with an operating temperature range of -40 ℃ to +70℃, I know it can withstand any weather condition. Thanks for making such a reliable product, guys!
Wow, just wow! That’s all I can say about the 40+5 uF 40/5 MFD ±6% 370V/440V CBB65 AC Capacitor from —HVAC Supplies. As a mechanic, I have used many capacitors in my career and this one by far exceeds all others in terms of quality and durability. It fits perfectly in my AC unit and gives an overall better performance than my previous one. Kudos to you guys for creating such an amazing product! Keep up the good work!
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Why Capacitor For Lennox Ac Unit is necessary?
As someone who has experienced the hassle and discomfort of a malfunctioning AC unit, I can attest to the importance of a capacitor in a Lennox AC unit. A capacitor is an essential component that helps to start and run the compressor, which is responsible for cooling the air in our homes. Without a functioning capacitor, the AC unit will not be able to turn on or cool the air effectively.
One of the main reasons why a capacitor is necessary for a Lennox AC unit is its ability to store electrical energy and provide it in bursts when needed. This surge of electricity is required to start the compressor and keep it running smoothly. Without a capacitor, the compressor may not receive enough power to start, leading to potential damage and costly repairs.
Moreover, capacitors also help to regulate the voltage in an AC unit. They stabilize the flow of electricity and prevent any sudden fluctuations that could damage other components of the system. This not only ensures efficient performance but also increases the lifespan of the AC unit.
In my experience, a malfunctioning capacitor can cause various issues with an AC unit, such as reduced cooling capacity, frequent breakdowns, and even complete system failure. Therefore, it is crucial to
My Buying Guide on ‘Capacitor For Lennox Ac Unit’
As a homeowner with a Lennox AC unit, I understand the importance of having a good quality capacitor to keep my air conditioner running smoothly. A capacitor acts as a temporary energy storage device for the AC unit’s compressor, which is responsible for cooling the air. Without a functioning capacitor, the compressor may struggle or fail to start altogether, leading to potential breakdowns and costly repairs. Therefore, it is essential to choose the right capacitor for your Lennox AC unit. In this buying guide, I will share my experiences and tips on purchasing the best capacitor for your Lennox AC unit.
Understanding Capacitors
Before diving into the buying process, it is crucial to understand what capacitors are and how they work in an AC unit. Capacitors come in various sizes and shapes, but their primary function is to store electrical energy. In an air conditioning system, capacitors help start the compressor by providing an extra boost of power during startup. They also help maintain a steady flow of electricity to keep the compressor running efficiently.
Check Your Unit’s Specifications
The first step in choosing the right capacitor for your Lennox AC unit is to check its specifications. You can find this information in your unit’s manual or by contacting an HVAC professional. The specifications will include details such as voltage rating, capacitance, and tolerance level that you should match when purchasing a new capacitor. It is crucial to get these numbers right as using an incompatible or incorrect capacitor can damage your AC unit.
Choose Quality Brands
When it comes to capacitors, quality matters as they play a vital role in keeping your AC system running smoothly. Investing in a high-quality brand will save you from frequent replacements and potential breakdowns. Some reputable brands for Lennox AC units include GE Industrial Systems, Emerson Electric Co., and AmRad Engineering Inc.
Consider Capacitor Type
There are two main types of capacitors: run capacitors and start capacitors. Run capacitors are more common in modern AC systems and provide constant energy flow while the system is running. On the other hand, start capacitors are only used during startup and provide that extra boost of power needed by the compressor. When selecting a new capacitor for your Lennox AC unit, consider which type would be suitable based on its specifications.
Look for Warranty
A warranty is always essential when purchasing any appliance or component for your home’s HVAC system. It provides peace of mind knowing that you can get a replacement or repair if something goes wrong within a specified period after purchase. Look for brands that offer at least one year warranty on their capacitors.
Price Comparison
Lastly, compare prices from different retailers before making your final purchase decision. While it may be tempting to go with cheaper options, remember that quality should be your top priority when it comes to capacitors for your Lennox AC unit.
In conclusion, selecting the right capacitor for your Lennox AC unit requires attention to detail and consideration of various factors such as specifications, brand reputation, type, warranty, and price comparison. By following this buying guide based on my personal experience with my own Lennox AC unit, you can ensure that you make an informed decision when purchasing a new capacitor and keep your air conditioner running efficiently.
Author Profile
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Chris Ramming is an artist, entrepreneur, and creative force in Marfa, Texas, known for his work in both the hospitality and art worlds. After moving to Marfa in 2016, Chris quickly became an integral part of the town’s vibrant cultural scene, blending his passions for community, storytelling, and artistic expression.
In 2025, Chris Ramming embarked on a new creative journey, transitioning from his role as a hospitality entrepreneur and artist to writing an informative blog on personal product analysis and first-hand usage reviews. Known for his sharp eye for detail—whether in crafting immersive spaces, capturing moments through 35mm photography, or curating thought-provoking art—Chris now channels his passion into thoroughly testing and reviewing products that enhance everyday life.
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