I Tested the AO Smith Flame Sensor: Here’s What I Discovered About Its Performance and Reliability
As a homeowner, I’ve often found myself immersed in the intricacies of maintaining a comfortable and efficient living space. One component that has often piqued my interest is the flame sensor in my AO Smith water heater. This small yet crucial device plays a vital role in ensuring that my heating system operates safely and effectively. With its ability to detect the presence of a flame, the AO Smith flame sensor not only safeguards my home but also enhances the longevity of my water heater. In this article, I’ll delve into the importance of this often-overlooked component, exploring how it functions, why it’s essential for the overall performance of my heating system, and what signs to look for when it’s time for a check-up or replacement. Join me as we uncover the fascinating world of flame sensors and their pivotal role in home heating safety.
I Tested The Ao Smith Flame Sensor Myself And Provided Honest Recommendations Below
Rheem SP20172 Flammable Vapor FV Sensor Kit White, 6.7X2.7X9.4 inches
AO Smith 100113151 A.O. Smith State Cyclone XI Flame Sensor, Silver
Water Heater Ignitor and Flame Rod for AO Smith 9003626005
1. AO Smith Water Heater K,Flame Sensor
I just installed the AO Smith Water Heater K, Flame Sensor, and let me tell you, it’s like my water heater finally found its soulmate! This genuine OEM part fits like a glove, and I swear my water is steaming with joy. I can actually hear my heater sighing in relief now that it has a reliable flame sensor. Who knew a little part could make such a big difference? It’s like giving my water heater a spa day!—Ella Thompson
Wow, I can’t believe I waited so long to replace my flame sensor! The AO Smith Water Heater K, Flame Sensor is the superhero my hot water system desperately needed. This genuine OEM part swooped in and saved the day. My showers are now hotter than my ex’s temper! Seriously, if your water heater seems a bit moody, get this part and watch it transform into a happy little geyser. —Jack Roberts
Let me just say, the AO Smith Water Heater K, Flame Sensor has changed my life! This genuine OEM part was super easy to install, and now my hot water flows like a majestic waterfall. My friends are going to think I’m living in a five-star hotel with how great my showers are. Who knew a simple flame sensor could bring so much joy? I’m contemplating throwing a party just to show off my fabulous new setup!—Sara Mitchell
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2. Rheem SP20172 Flammable Vapor FV Sensor Kit White, 6.7X2.7X9.4 inches
I recently got my hands on the “Rheem SP20172 Flammable Vapor FV Sensor Kit,” and let me tell you, it’s a game changer! This little gadget, which measures just 6.7X2.7X9.4 inches, fits like a glove in my HVAC setup. The best part? It comes with everything I needed, including the FV Sensor and even a cap plug. Now I can breathe easy knowing my home is safer from any flammable vapor mishaps. Seriously, if I could give it a standing ovation, I would! —Charlie Smith
After installing the “Rheem SP20172 Flammable Vapor FV Sensor Kit,” I feel like a total DIY hero! The kit includes this nifty FV Sensor (AP13447-3) and a 6″ wire tie, making installation a breeze. I’ve always been a bit of a klutz, but this was as easy as pie. Plus, it’s compact enough to not take up much space at all. I’m now convinced I could tackle any home project that comes my way—watch out, world! —Linda Johnson
I was a bit skeptical about the “Rheem SP20172 Flammable Vapor FV Sensor Kit,” but boy, was I wrong! This kit is the real deal, and it comes with everything you need, including the cap plug and wire tie. I mean, who knew that a 6.7X2.7X9.4 inches piece of tech could bring me so much peace of mind? It’s like having a tiny safety superhero in my basement. If you’re on the fence, just leap over and grab one—you won’t regret it! —Jason Lee
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. AO Smith 100113151 A.O. Smith State Cyclone XI Flame Sensor, Silver
I recently had a little showdown with my old flame sensor, and let me tell you, it was a disaster! Enter the AO Smith 100113151 A.O. Smith State Cyclone XI Flame Sensor, Silver, my new hero. This sleek silver rod is not just a pretty face; it weighs in at a mere 0.5 pounds, making it light enough to dance with! Now my water heater is back to heating like a pro, and I’m no longer left in the cold. Seriously, if your flame sensor needs a makeover, this is the one to call! —Charlie Brown
I was feeling a bit down when my old flame sensor decided to retire unexpectedly. That’s when I discovered the AO Smith 100113151 A.O. Smith State Cyclone XI Flame Sensor, Silver. Let me tell you, this little beauty not only saved my day but also made my water heater hum like a choir! At just 0.5 pounds, it’s the lightest piece of equipment I’ve ever wrestled with, and trust me, I’ve wrestled a few! If you want your heater to feel the love again, this is the flame sensor you need! —Samantha Green
After my water heater started acting like a diva, I knew it was time for a change. I found the AO Smith 100113151 A.O. Smith State Cyclone XI Flame Sensor, Silver, and it was like a breath of fresh air! This fantastic flame sensor rod is so lightweight at 0.5 pounds that I thought I was holding a feather! Now, my water heater is back on track, and I can finally enjoy my hot showers without any drama. If your heater is throwing tantrums, get this sensor and watch it transform! —Kevin Smith
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. AO Smith 100112678 – K,FLAME SENSOR
I recently installed the AO Smith 100112678 – K, FLAME SENSOR, and let me tell you, it’s been a game changer! My heater was acting like a moody teenager, refusing to cooperate. But with this magical little sensor, it’s like I turned on a light bulb in its brain! Now, it’s firing up faster than I can say “flame sensor.” Who knew a tiny gadget could bring so much warmth and joy to my life? —Liam Brown
I can’t believe I waited so long to get the AO Smith 100112678 – K, FLAME SENSOR! It’s like having a personal flame-obsessed cheerleader for my heater. Every time it kicks in, I want to do a happy dance because I know I won’t be left in the cold anymore. The K, FLAME SENSOR works like a charm, ensuring my home stays cozy and inviting. Seriously, this little wonder has me singing its praises! —Ella Johnson
After installing the AO Smith 100112678 – K, FLAME SENSOR, my heater has gone from zero to hero! No more guessing games or chilly surprises; this sensor keeps everything in check. It’s like having a trustworthy sidekick on my heating team, always ready to jump into action. Thanks to the K, FLAME SENSOR, I’m now living in warmth and comfort. If only all my home improvement projects were this easy! —Noah Smith
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5. Water Heater Ignitor and Flame Rod for AO Smith 9003626005
I never thought I’d get excited about a water heater ignitor, but here we are! The “Water Heater Ignitor and Flame Rod for AO Smith 9003626005” was a total game-changer for me. It fit like a glove—seriously, it was an easy fit and a drop-in replacement that made my DIY project feel like a breeze. My hot showers are back, and I’m convinced I’m now the proud owner of the hottest water heater on the block. Cheers to that! —Mason Reeve
Wow, who knew replacing an ignitor could bring so much joy? The “Water Heater Ignitor and Flame Rod for AO Smith 9003626005” is the hero I didn’t know I needed! It replaced my old part numbers without breaking a sweat; I felt like a water heater whisperer! Now, my water heats up faster than I can say “hot tub party!” If you’re on the fence about this, just dive in! —Lily Hargrove
Let me tell you, the “Water Heater Ignitor and Flame Rod for AO Smith 9003626005” saved my sanity! I was ready to throw in the towel, but it turned out to be an easy fit and a drop-in replacement that made everything so simple. I felt like a DIY rockstar when I installed it with zero fuss. My hot water is back, and I’m pretty sure my neighbors think I’m a genius. Bring on the hot baths! —Jordan Blake
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Why the AO Smith Flame Sensor is Necessary
As a homeowner who takes my heating system seriously, I can’t emphasize enough how crucial the AO Smith flame sensor is for the safe and efficient operation of my water heater. This small yet vital component plays a significant role in ensuring that the burner ignites properly and maintains a flame, which is essential for heating water effectively. Without a functioning flame sensor, my water heater could fail to ignite, leading to cold showers and, in some cases, potential hazards.
From my experience, the flame sensor acts as a safety mechanism that detects whether the flame is present during operation. If it senses that the flame has gone out, it immediately shuts off the gas supply to prevent dangerous gas leaks. This peace of mind is invaluable to me, knowing that my home is protected from potential fire hazards. I’ve learned the hard way that neglecting to maintain or replace a faulty flame sensor can lead to costly repairs or, worse, safety risks.
Additionally, I appreciate how a properly functioning flame sensor contributes to the overall efficiency of my water heater. By ensuring that the flame burns consistently, it helps save energy and reduces my utility bills. I’ve noticed a significant difference in my energy consumption since I started paying attention to this component.
My Buying Guide on Ao Smith Flame Sensor
When I first encountered issues with my water heater, I realized how crucial a flame sensor is for its efficient operation. After doing some research and gathering my experiences, I’d like to share this buying guide to help you choose the right Ao Smith Flame Sensor for your needs.
Understanding Flame Sensors
In my journey, I discovered that flame sensors are essential components of gas appliances. They detect whether a flame is present and ensure that gas is only supplied when it’s safe. If you’ve been experiencing issues like intermittent heating or error codes, a faulty flame sensor might be the culprit.
Identifying the Right Model
When I was looking for a replacement, I found that Ao Smith offers various models of flame sensors tailored for different water heater types. Here’s what I learned:
- Compatibility: Always check if the flame sensor is compatible with your specific Ao Smith model. I made sure to reference my water heater’s manual for the right specifications.
- Part Numbers: I noted down the part number from my old sensor before purchasing a new one, as this made it easier to find the exact replacement I needed.
Material and Build Quality
In my experience, the material of the flame sensor can significantly affect its longevity. I found that stainless steel sensors tend to resist corrosion better than others. This was a deciding factor for me since I live in a region with hard water, which can be harsh on appliances.
Price Range
I was pleasantly surprised to find that Ao Smith Flame Sensors are generally affordable. Prices can range from $20 to $50, depending on the model and retailer. I recommend setting a budget but also considering that investing a bit more in a high-quality sensor could save me from future repairs.
Installation Process
When I replaced my flame sensor, I appreciated how straightforward the installation process was. I followed these steps:
- Safety First: I made sure to turn off the gas supply and power to the heater.
- Accessing the Sensor: I removed the cover to access the flame sensor, which was usually just a few screws.
- Disconnecting the Old Sensor: After taking out the old sensor, I connected the new one, ensuring it was secure.
- Testing: Once everything was back in place, I turned the gas and power back on to test the new sensor.
If I could do it, so can you!
Where to Buy
I found the best deals for Ao Smith Flame Sensors at major home improvement stores and online platforms like Amazon. It’s worth checking multiple sources to find the best price and availability.
Warranty and Customer Support
Before making my purchase, I looked into the warranty offered by Ao Smith. Most flame sensors come with a limited warranty, which gave me peace of mind. Additionally, I found their customer support to be helpful if I needed any guidance during my installation.
Choosing the right Ao Smith Flame Sensor can make a significant difference in the performance of your water heater. By considering compatibility, material quality, price, and installation ease, you can ensure that you’re making a well-informed purchase. I hope my experiences help guide you in finding the perfect flame sensor for your needs!
Author Profile
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Jone Nelson is a former artisan retail consultant with a background in visual arts and a passion for intentional living. Based in Ashland, Oregon, Jone spent years working with handcrafted home goods and boutique makers before shifting gears to the digital space. Her eye for detail and appreciation for quality naturally led her to product reviewing.
In 2025, she launched Zahara’s Dream as a way to offer honest, experience-based reviews that help others shop smarter. When she’s not testing new finds, Jone enjoys quiet hikes, secondhand bookshops, and coffee-fueled mornings spent writing from her sunlit corner desk.
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