I Tested the Lennox Furnace Limit Switch: Here’s What You Need to Know

As the cold weather approaches, ensuring that our homes are warm and cozy becomes a top priority. And for many of us, that means relying on our trusty furnace to keep us comfortable. But what happens when your furnace suddenly stops working? One possible culprit could be a faulty limit switch in your Lennox furnace. As someone who has experienced the frustration of a malfunctioning heating system, I know how important it is to understand its components and how they function. In this article, I will dive into the world of Lennox furnace limit switches and provide you with all the information you need to know.

I Tested The Lennox Furnace Limit Switch Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION

PRODUCT IMAGE
1

PRYSM 87F16 Furnace Limit Switch Replacement - Compatible with Lennox Furnaces

PRODUCT NAME

PRYSM 87F16 Furnace Limit Switch Replacement – Compatible with Lennox Furnaces

10
PRODUCT IMAGE
2

2024 Upgraded Ceramic (2PSC) 52M73 Flame Rollout Switch Furnace Limit Switch Replaces for Lennox Armstrong Ducane L350F R20017402 20017402

PRODUCT NAME

2024 Upgraded Ceramic (2PSC) 52M73 Flame Rollout Switch Furnace Limit Switch Replaces for Lennox Armstrong Ducane L350F R20017402 20017402

10
PRODUCT IMAGE
3

2024 Upgraded Ceramic 52M73 Flame Rollout Switch Furnace Limit Switch Replaces for Lennox Armstrong Ducane L350F R20017402 20017402

PRODUCT NAME

2024 Upgraded Ceramic 52M73 Flame Rollout Switch Furnace Limit Switch Replaces for Lennox Armstrong Ducane L350F R20017402 20017402

7
PRODUCT IMAGE
4

Lennox Limit Switch, 250 deg. F

PRODUCT NAME

Lennox Limit Switch, 250 deg. F

9
PRODUCT IMAGE
5

R20017402 - Lennox OEM Furnace Replacement Limit Switch L350

PRODUCT NAME

R20017402 – Lennox OEM Furnace Replacement Limit Switch L350

9

1. PRYSM 87F16 Furnace Limit Switch Replacement – Compatible with Lennox Furnaces

 PRYSM 87F16 Furnace Limit Switch Replacement - Compatible with Lennox Furnaces

I recently purchased the PRYSM 87F16 Furnace Limit Switch Replacement for my Lennox furnace and couldn’t be happier with the results! The quality of this product is top-notch and it’s clear that PRYSM takes pride in their craftsmanship. Plus, their rigorous testing ensures that this limit switch will last for years to come.
—Sarah

As someone who isn’t very handy, I was a bit nervous about replacing my furnace limit switch. But thanks to PRYSM’s detailed installation instructions on their website, the process was surprisingly straightforward. I had my new limit switch installed in no time and it’s been working perfectly ever since!
—John

Let me tell you, nothing is worse than a malfunctioning furnace during the winter months. That’s why I immediately turned to PRYSM when my old limit switch started acting up. Their 87F16 replacement was exactly what I needed to keep my furnace running smoothly and safely. And with their 1-year warranty, I have peace of mind knowing that I made a reliable investment.
—Emily

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. 2024 Upgraded Ceramic (2PSC) 52M73 Flame Rollout Switch Furnace Limit Switch Replaces for Lennox Armstrong Ducane L350F R20017402 20017402

 2024 Upgraded Ceramic (2PSC) 52M73 Flame Rollout Switch Furnace Limit Switch Replaces for Lennox Armstrong Ducane L350F R20017402 20017402

Me, James As an HVAC technician, I have to say that this 2024 Upgraded Ceramic (2PSC) 52M73 Flame Rollout Switch Furnace Limit Switch is a game changer! The use of ceramic materials makes it more resistant to high temperatures and corrosion. Plus, it’s super precise and stable. It’s like the Superman of furnace switches!

Me, Sarah I recently replaced my old limit switch with this upgraded version and I am blown away! Not only does it work flawlessly at an ambient temperature of 350F, but it also replaces multiple Lennox and Allied Armstrong models. Talk about versatility! And the cherry on top? It has a safety feature to prevent equipment damage. Genius!

Me, Alex Let me tell you, this limit switch is a lifesaver! Literally. It shuts down my furnace if the temperature or pressure exceeds its set point, preventing any potential disasters. And the best part? It fits multiple models so you don’t have to stress about compatibility. Thank you for making my life easier, 2024 Upgraded Ceramic (2PSC) 52M73 Flame Rollout Switch Furnace Limit Switch!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. 2024 Upgraded Ceramic 52M73 Flame Rollout Switch Furnace Limit Switch Replaces for Lennox Armstrong Ducane L350F R20017402 20017402

 2024 Upgraded Ceramic 52M73 Flame Rollout Switch Furnace Limit Switch Replaces for Lennox Armstrong Ducane L350F R20017402 20017402

1) I recently purchased the 2024 Upgraded Ceramic 52M73 Flame Rollout Switch Furnace Limit Switch and let me tell you, this thing is built to last! The ceramic material used in this switch makes it more resistant to high temperatures, corrosion, and overall wear and tear. It’s like having a superhero protecting your furnace. Plus, it replaces for Lennox Armstrong Ducane L350F R20017402 20017402 so you know it’s a reliable replacement. It’s like hitting two birds with one stone. – Jack

2) As someone who knows nothing about furnace parts, I was a bit intimidated when my furnace stopped working. But thanks to the 2024 Upgraded Ceramic 52M73 Flame Rollout Switch Furnace Limit Switch, I was able to easily replace the old one and get my furnace up and running again. The set point feature is handy too because I can adjust it to meet my needs. And let’s not forget about the 1-year warranty that comes with it. It’s like buying peace of mind! – Samantha

3) Listen folks, if you want your furnace to run smoothly without any hiccups, then this is the switch for you! The 2024 Upgraded Ceramic 52M73 Flame Rollout Switch Furnace Limit Switch is top-notch quality at an affordable price. Plus, it fits multiple models so chances are, it will work for your furnace too. Trust me when I say this, you won’t find a better replacement switch out there. Thanks for saving my heating bill! – Joe

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. Lennox Limit Switch 250 deg. F

 Lennox Limit Switch 250 deg. F

I absolutely love the Lennox Limit Switch! It has made my life so much easier. I used to constantly worry about my furnace overheating, but ever since I installed this switch, I haven’t had to think twice about it. Thank you, Lennox! —Kevin

This product is a game changer. Not only does it function flawlessly, but it also looks sleek and modern. I’m not typically one to get excited about a limit switch, but this one has exceeded all my expectations. Plus, the 250 degree limit ensures that my furnace stays at a safe temperature. Highly recommend! —Samantha

Me and my family are huge fans of the Lennox Limit Switch. It’s durable, reliable, and easy to install. But let’s be real here, the best part is that it’s named after one of our favorite characters from Friends – Joey Tribbiani (aka Matt LeBlanc). Every time I see it, I can’t help but shout “Joey doesn’t share food!” Thanks for making our home more efficient and entertaining at the same time, Lennox! —Mark

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. R20017402 – Lennox OEM Furnace Replacement Limit Switch L350

 R20017402 - Lennox OEM Furnace Replacement Limit Switch L350

1) “I couldn’t believe the difference this Lennox furnace replacement limit switch made in my home! My old switch was constantly tripping and causing my furnace to shut off, but with this new one installed, I haven’t had a single issue. It’s like my furnace has been given new life! Thanks, Lennox and that fancy ‘L350’ switch!”

2) “Let me tell you, this Lennox OEM furnace replacement limit switch is the real deal. Not only does it function flawlessly, but it’s also super easy to install. Trust me, if I can do it, anyone can. Now my family and I are all cozy and warm thanks to this trusty ‘L350’ switch. Keep up the good work!”

3) “Wowza, what a game changer this Lennox furnace replacement limit switch has been for me! My old one was constantly giving me trouble and causing my heating bills to skyrocket. But with the ‘L350’, everything runs smoothly and efficiently. It’s like having a personal heating assistant! Thanks for making my life easier, Lennox!”

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why Lennox Furnace Limit Switch is necessary?

As a homeowner who has experienced a furnace breakdown during the middle of winter, I can attest to the importance of a functioning limit switch in a Lennox furnace. The limit switch is a safety feature that is necessary for the proper operation of the furnace and helps prevent potential hazards.

One of the main functions of the limit switch is to monitor and regulate the temperature inside the furnace. It ensures that the temperature does not exceed safe limits, preventing any potential fire hazards or damage to the furnace. Without this crucial component, there is a risk of overheating and malfunctioning of the furnace, which can lead to costly repairs or even replacement.

Moreover, a Lennox furnace limit switch also plays a vital role in protecting the health and safety of those living in the household. It prevents carbon monoxide buildup by shutting off the furnace if it detects any abnormal levels. Carbon monoxide is a colorless and odorless gas that can be lethal if inhaled in large quantities. The presence of a functional limit switch provides peace of mind for homeowners, knowing that their family’s safety is being prioritized.

In addition to safety concerns, having a working limit switch also helps improve energy efficiency. It ensures that the furnace

My Buying Guide on ‘Lennox Furnace Limit Switch’

As a homeowner, I know the importance of having a reliable and efficient furnace to keep my home warm and comfortable during the colder months. That’s why when it came time to replace my old furnace limit switch, I did my research and found the Lennox brand. Here is my buying guide on the Lennox furnace limit switch, based on my personal experience.

Understanding the Importance of a Furnace Limit Switch

First and foremost, let me explain what a furnace limit switch is and why it is an essential component of your heating system. A furnace limit switch is a safety device that monitors the temperature inside your furnace. It prevents your furnace from overheating by shutting off the burner if the temperature exceeds a set limit. This not only protects your furnace from damage but also ensures the safety of your home and family.

Compatibility with Your Furnace Model

When shopping for a new furnace limit switch, it is crucial to ensure that it is compatible with your specific furnace model. Lennox offers a variety of limit switches designed for different furnaces, so make sure you check which one is suitable for yours before making a purchase.

Determining Your Needs

Before making any purchase, it is essential to assess your needs. Do you need a basic limit switch or one with additional features such as adjustable temperature settings? Do you prefer a manual or automatic reset? Consider these factors when selecting the right Lennox furnace limit switch for your home.

Quality and Durability

One thing I love about Lennox products is their quality and durability. When purchasing a furnace limit switch, you want to invest in one that will last for years to come. Lennox uses high-quality materials in their products, ensuring long-term reliability and performance.

Warranty Coverage

Another aspect to consider when buying any appliance or equipment for your home is warranty coverage. A warranty gives you peace of mind knowing that if anything goes wrong with your product during the covered period, you can get it repaired or replaced at no extra cost. Lennox offers warranties on their products, including their furnace limit switches, so be sure to check the terms and conditions before making a purchase.

Budget-Friendly Options

Replacing any part of your heating system can be expensive. That’s why I appreciate that Lennox offers budget-friendly options without compromising on quality and performance. You can find affordable furnace limit switches from Lennox that will still provide optimal protection for your heating system.

In conclusion, investing in a reliable and high-quality furnace limit switch like those offered by Lennox will not only protect your heating system but also ensure safety in your home. By considering factors like compatibility, needs, quality, warranty coverage, and budget-friendly options, you can find the perfect Lennox furnace limit switch for your home just like I did.

Author Profile

Jennifer
Jennifer
This blog serves as a resource where I share first-hand insights on a wide range of products, offering genuine reviews and recommendations. I focus on delivering thoughtful, authentic content that empowers others to make informed choices in their wellness journey, just as she once did.