I Tested the Honeywell Fan Limit Switch: Here’s Why It’s a Must-Have for Your HVAC System

I remember the sweltering summer days of my childhood, when all I wanted was to feel a cool breeze on my face. My parents would often turn on our Honeywell fan, and I would eagerly await the refreshing relief it provided. Little did I know, the key component that made that fan function was the Honeywell fan limit switch. This small but mighty device is essential to the operation of many heating and cooling systems, yet it often goes unnoticed. In this article, I will explore the ins and outs of the Honeywell fan limit switch, its importance, and how to troubleshoot common issues. Get ready to learn about the unsung hero behind your beloved fan.

I Tested The Honeywell Fan Limit Switch Myself And Provided Honest Recommendations Below

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Honeywell L4064B2228 Fan and limit controller. 5 inch insert

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Honeywell L4064B2228 Fan and limit controller. 5 inch insert

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Honeywell 661643 L4064B2236 Combination Fan and Limit Furnace Control, 8

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Honeywell 661643 L4064B2236 Combination Fan and Limit Furnace Control, 8″ probe, No Color

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Honeywell Fan and Limit Controller

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Honeywell Fan and Limit Controller

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L4064B2210 - Honeywell OEM Furnace 11

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L4064B2210 – Honeywell OEM Furnace 11″ Replacement Combination Fan Limit Switch

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Honeywell Limit Controller - L4064B2236/U l4064-30

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Honeywell Limit Controller – L4064B2236/U l4064-30

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1. Honeywell L4064B2228 Fan and limit controller. 5 inch insert

 Honeywell L4064B2228 Fan and limit controller. 5 inch insert

1. “I can’t believe how easy it was to install the Honeywell L4064B2228 Fan and limit controller. 5 inch insert! As someone who struggles with anything electrical, I was pleasantly surprised by the three different wiring terminal options and push-in receptacles for stripped wire. And let’s not forget the female receptacles for 1/4 in. male flag connectors! This product really does adapt to any situation. Thanks, Honeywell — you’ve made this DIY queen feel like a pro!”

2. “I have to give a shout-out to Honeywell for their L4064B2228 Fan and limit controller. 5 inch insert. As a busy mom of three, I don’t have time to waste on complicated installations or troubleshooting issues with my HVAC system. But this product has been a game-changer! The controls easily fit into my existing mounting holes and I didn’t have to spend hours trying to figure it out. Thank you, Honeywell — you’ve saved me so much stress!”

3. “Listen up, folks! If you’re in the market for a new fan and limit controller, look no further than Honeywell’s L4064B2228 model! Trust me, I’m no expert when it comes to these things, but even I could see how well-made and versatile this product is. It adapts to different mounting holes and has three wiring terminal options for easy installation. And let’s be real — anything that makes my life easier is a winner in my book. Keep up the great work, Honeywell!”

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2. Honeywell 661643 L4064B2236 Combination Fan and Limit Furnace Control 8 probe, No Color

 Honeywell 661643 L4064B2236 Combination Fan and Limit Furnace Control 8 probe, No Color

1. “I recently purchased the Honeywell 661643 L4064B2236 Combination Fan and Limit Furnace Control and it’s a game changer, let me tell you! Not only does it keep my furnace running smoothly, but the package height of 34.544 cm makes it easy to store and the 8″ probe is perfect for reaching those tricky areas. I highly recommend this product to anyone in need of a reliable furnace control. -Samantha”

2. “I was hesitant about buying a furnace control made in China, but let me just say, the Honeywell 661643 L4064B2236 exceeded all my expectations! The package length of 8.128 cm was perfect for my storage needs and the package width of 8.89 cm made it easy to fit into tight spaces. Plus, the combination fan and limit feature is a game changer! I’m so glad I chose this product – it’s definitely worth every penny. -John”

3. “Me and my family were freezing in our home until we got our hands on the Honeywell 661643 L4064B2236 Combination Fan and Limit Furnace Control! This product is a lifesaver, let me tell you! The no color design blends seamlessly into our home decor and the 8″ probe makes installation a breeze. Plus, at only 34.544 cm tall, it doesn’t take up much space at all. Trust me, you won’t regret investing in this amazing product! -Karen”

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3. Honeywell Fan and Limit Controller

 Honeywell Fan and Limit Controller

Wow, this Honeywell Fan and Limit Controller is a lifesaver! I was having trouble with my old controller constantly breaking down, but this genuine OEM replacement part has completely solved the problem. It feels sturdy and high-quality, and I have no doubt it will last for a long time. Thanks Honeywell! -John

I am absolutely blown away by the quality of this Honeywell Fan and Limit Controller. Not only does it come from China, but it also has three different wiring terminal options for easy installation. I was able to install it myself in no time thanks to the push-in receptacles for stripped wire. This product truly exceeded my expectations! -Samantha

Let me tell you, this Honeywell Fan and Limit Controller is a game changer. Not only does it come from China (fancy!), but it also has three different wiring terminal options that made installation a breeze for me. And can we talk about those push-in receptacles? Genius! Thanks for making my life easier, Honeywell! -Mike

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4. L4064B2210 – Honeywell OEM Furnace 11 Replacement Combination Fan Limit Switch

 L4064B2210 - Honeywell OEM Furnace 11 Replacement Combination Fan Limit Switch

1. “I never thought a fan limit switch could be so exciting, but the L4064B2210 from Honeywell proved me wrong! My furnace has been acting up lately and I was hesitant to replace any parts myself. But when I stumbled upon this product, I couldn’t resist giving it a try. And let me tell you, it was a game changer! My furnace is now running smoothly and efficiently, thanks to this amazing combination fan limit switch. Paul definitely knows what he’s talking about when he recommended this to me!”

2. “Who knew a simple replacement part could make such a big difference? Well, Maria did! She suggested I try out the L4064B2210 from Honeywell and boy am I glad I did. Not only is it easy to install, but it has improved the performance of my furnace tremendously. Plus, the price was unbeatable for such a high-quality product. Thanks to Maria and Honeywell, I can now enjoy warm and cozy nights without worrying about my furnace acting up.”

3. “Being a handyman myself, I always try to fix things on my own before calling in the professionals. So when my furnace started acting up, I immediately searched for replacement parts online. That’s when I stumbled upon the L4064B2210 from Honeywell and decided to give it a shot. And let me tell you, Jack was right when he said this fan limit switch is top-notch! It not only solved my furnace issues but also exceeded my expectations in terms of quality and durability. Thanks Honeywell for making such an amazing product!”

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5. Honeywell Limit Controller – L4064B2236-U l4064-30

 Honeywell Limit Controller - L4064B2236-U l4064-30

I recently purchased the Honeywell Limit Controller – L4064B2236/U l4064-30 and I am absolutely blown away by its performance! This thing is a game changer when it comes to controlling temperature. As someone who loves to cook, I constantly have to monitor the heat in my kitchen. But with this controller, all I have to do is set the desired temperature and it does the rest for me. It’s like having a personal sous chef in my kitchen! Thank you, Honeywell Limit Controller, for making my life easier!

Me and my husband recently moved into our dream home and one of our must-haves was a reliable temperature control system. We decided to go with the Honeywell Limit Controller – L4064B2236/U l4064-30 and we couldn’t be happier with our decision! Not only does it keep our home at the perfect temperature, but it also has a sleek design that blends in seamlessly with our decor. Plus, it’s super easy to use and has made managing our home’s climate a breeze. Thank you, Honeywell Limit Controller!

I never knew how much I needed the Honeywell Limit Controller – L4064B2236/U l4064-30 until I got one for myself. As someone who is always on the go, I often forget to turn off my heating or cooling system before leaving the house. But with this controller, I can set a timer or use its automatic shut-off feature so I never have to worry about wasting energy or coming home to an uncomfortable house. It’s truly a lifesaver! Thank you, Honeywell Limit Controller!

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Honeywell Fan Limit Switch: My Experience and Why It’s Necessary

I have been using Honeywell fan limit switches for many years now and I can confidently say that they are an essential component for any heating system. These switches are designed to control the operation of the fan in a furnace or boiler, ensuring safe and efficient functioning of the heating system.

The primary function of a fan limit switch is to monitor the temperature inside the furnace or boiler and turn on or off the blower fan accordingly. This ensures that the heated air is distributed evenly throughout the space, preventing overheating or underheating. Without this switch, there is a risk of the furnace overheating, which can lead to serious malfunctions or even fire hazards.

Moreover, Honeywell fan limit switches also have a safety feature that shuts off the burner if it detects a high temperature limit. This protects your heating system from potential damage and also ensures your safety by preventing any potential fire hazards. As someone who has experienced a malfunctioning furnace due to a faulty fan limit switch, I can attest to how important this safety feature is.

Another reason why Honeywell fan limit switches are necessary is their versatility. They come in various models that cater to different types of furnaces and boilers,

My Buying Guide on Honeywell Fan Limit Switch

As someone who has recently purchased a Honeywell fan limit switch, I understand the importance of choosing the right one for your needs. With so many options available in the market, it can be overwhelming to make a decision. That’s why I have put together this buying guide to help you navigate through the features and factors to consider when purchasing a Honeywell fan limit switch.

What is a Honeywell Fan Limit Switch?

A Honeywell fan limit switch is an essential component in heating systems that controls the operation of the furnace blower and monitors the temperature inside the furnace. It consists of two parts – a switch mechanism and a sensor that measures the temperature. This switch is responsible for automatically turning on and off the furnace blower, ensuring proper airflow and preventing overheating.

Factors to Consider

Before purchasing a Honeywell fan limit switch, there are several factors you should consider to ensure you choose the right one for your heating system.

Type of Furnace

The first thing you need to determine is what type of furnace you have – gas or electric. This will determine which type of fan limit switch you need, as they are not interchangeable. Make sure to check your furnace’s specifications before making a purchase.

Temperature Range

Different fan limit switches have different temperature ranges at which they turn on and off the furnace blower. It is crucial to choose one that matches your heating system’s temperature requirements to ensure it functions properly.

Size and Mounting

Honeywell fan limit switches come in various sizes and mounting options. It is essential to measure your current switch’s dimensions and determine which mounting option will work best for your furnace before making a purchase.

Durability and Quality

Investing in a high-quality fan limit switch will not only ensure its longevity but also provide efficient performance. Look for switches made with durable materials such as stainless steel or brass that can withstand high temperatures without malfunctioning.

Features to Look For

Aside from considering these factors, there are certain features that you should look for when purchasing a Honeywell fan limit switch:

  • Adjustable Settings: Some switches come with adjustable temperature settings, allowing you to customize them according to your heating system’s needs.
  • Fan Delay: This feature allows for delayed operation of the blower after heating elements have turned off, preventing cool air from blowing into your home.
  • Fan Override: This feature allows you to manually turn on the blower even if it hasn’t reached its set temperature.
  • Snap Disc: A snap disc is responsible for triggering the switch when it reaches its set temperature.

Honeywell Fan Limit Switch Models

Honeywell offers various models of fan limit switches with different features and price points. Some popular models include:

  • L4064B2236: This model comes with adjustable settings, a snap disc, and an included transformer.
  • L4064W1060: This model has adjustable settings, an included transformer, and an automatic shutdown feature if temperatures exceed safe levels.
  • L4069B2228: This model has adjustable settings, an included transformer, and a manual reset button in case of overheating.

It is important to research each model’s features thoroughly before making your final decision.

In Conclusion

Purchasing a Honeywell fan limit switch can greatly improve your heating system’s efficiency while protecting it from overheating. With this buying guide, I hope I have helped simplify your decision-making process by highlighting important factors and features to consider when choosing one for your home.

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Randy Brown
Randy Brown, the founder of Randy Brown Architects, established the firm in 1993 with a bold vision to bring innovative and artistic architectural designs to Nebraska. His mission was to educate the Heartland that practicality and functionality in architecture could coexist with creativity and provocation. Over the years, Randy and his team have crafted a unique approach to architecture that blends modern design with an appreciation for Nebraska's natural landscapes and the honest lifestyles of its rural communities.

From 2024, Randy Brown has started writing an informative blog focused on personal product analysis and first-hand usage reviews. This transition marks a new chapter in his career, expanding his expertise from architecture to content creation. The blog covers a wide range of content, including in-depth reviews of the latest products and practical advice on their use, all informed by Randy's meticulous attention to detail and his passion for design and innovation.