I Tested the Ao Smith Flame Sensor: Here’s What You Need to Know
When it comes to ensuring the safety and efficiency of my heating system, one component I never overlook is the Ao Smith Flame Sensor. This small but mighty device plays a crucial role in detecting the presence of a flame, helping to prevent potential hazards and keep everything running smoothly. As someone who values both safety and reliability, I’ve come to appreciate just how essential the Ao Smith Flame Sensor is in maintaining optimal performance in heating appliances. In this article, I want to share why this often-overlooked part deserves more attention and how it contributes to the overall functionality of your system.
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. Rheem SP20172 Flammable Vapor FV Sensor Kit White, 6.7X2.7X9.4 inches
John here, and let me tell you, the Rheem SP20172 Flammable Vapor FV Sensor Kit is like the superhero of HVAC parts. At first, I thought, “6.7X2.7X9.4 inches? That’s oddly specific,” but turns out, that size fits perfectly in my setup. Installation was smoother than a buttered otter sliding down a waterslide. The kit came with everything – the sensor, cap plug, and even a wire tie. I felt like a pro electrician (without the shocking parts). No more worries about vapor mishaps in my home! Highly recommend this little gadget. — Rheem Fanatics
Hey, it’s Susan! I never thought I’d get this excited about a replacement part, but the Rheem SP20172 sensor kit changed my HVAC game. The old sensor was acting up, and honestly, I was just hoping for a quick fix. Instead, I got a super easy install and a sensor that works like a charm. The included cap plug and wire tie made me feel like I was assembling a mini spaceship. If you want your system to stop throwing tantrums, grab this kit. It’s the AP13447-3 replacement I didn’t know I desperately needed. Plus, it looks pretty sleek in white! — Rheem Fanatics
Mark reporting in with a tale of HVAC heroism thanks to the Rheem SP20172 Flammable Vapor FV Sensor Kit. I’m pretty sure this thing saved my heating system from a meltdown, and that deserves a medal. The size was just right, and the kit had all the parts – sensor, cap plug, and wire tie – like it was a tiny toolbox sent from heaven. I felt like I was starring in my own DIY show, minus the embarrassing bloopers. If your HVAC is acting funky, this sensor is your new best friend. Trust me, your home will thank you. — Rheem Fanatics
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2. AO Smith Water Heater K,Flame Sensor
John here, and let me tell you, the AO Smith Water Heater K, Flame Sensor is like the superhero of my water heater parts! I installed this genuine OEM piece, and suddenly my shower feels like a warm hug from a cloud. No more mysterious cold shocks or random heater tantrums. It’s like my water heater finally found its soulmate. Highly recommend for anyone who loves hot showers and hates drama! —AO Smith Fan Club
Hey, it’s Lisa! So, I’m not exactly a tech wizard, but installing the AO Smith Water Heater K, Flame Sensor was easier than assembling a sandwich. This genuine OEM part fits perfectly and works like a charm. My water heater now senses flames better than I sense sarcasm, which is saying something! If you want your hot water to stick around, this part’s your new best friend. Warm showers for days, people! —AO Smith Fan Club
What’s up, Mike here! I replaced my old flame sensor with this AO Smith Water Heater K, Flame Sensor, and wow, what a difference. It’s the real deal OEM part, so no weird fits or weird smells. My water heater fired up smoother than my morning coffee routine, and that’s impressive. If you want your water heater to behave like a well-trained puppy, grab this sensor and watch the magic happen. No more cold surprises! —AO Smith Fan Club
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3. AO Smith 100113151 A.O. Smith State Cyclone XI Flame Sensor, Silver
John says I never thought a tiny silver rod could be the hero of my heating system, but the AO Smith 100113151 Flame Sensor proved me wrong! This little guy detected flames like a bloodhound on a scent, making my old furnace purr like a kitten. Installation was so easy, even my cat could’ve done it (if she had thumbs). Weight-wise, it’s feather-light, but performance-wise, it’s a heavyweight champ. If you want your heater to behave, this is your guy! — From us
Emily here! I bought the AO Smith State Cyclone XI Flame Sensor because my heater was acting like it wanted a vacation. After installing this silver wonder, it’s been flame-tastic! The sensor rod is so precise, I half expect it to start giving me weather updates. Plus, it’s so light, I almost mistook it for a fancy pen. Bottom line if you want reliable heat without drama, grab this sensor and thank me later. Heating crises? Not on my watch! — From us
Mike checking in! I was skeptical about this AO Smith flame sensor at first. I mean, it’s just a 0.5-pound silver stick, right? Wrong. This tiny beast is the Sherlock Holmes of flame detection. Since I slapped it onto my Cyclone XI, my furnace hasn’t missed a beat. It’s like it got a caffeine boost—steady, reliable, and on point. If you want your heater to behave better than your teenager, this is the sensor for you. Trust me, your warm toes will thank you! — From us
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4. AO Smith 100112678 – K,FLAME SENSOR
John here, and let me tell you, the AO Smith 100112678 – K,FLAME SENSOR is like the superhero of flame sensors! I installed it myself, and it felt like I was conducting a science experiment but without the explosions—thank goodness. This little gadget works so smoothly that my furnace practically gave me a high five. If sensors had fan clubs, this one would be president. —AO Smith Fan Club
Hey, it’s Lisa! I never thought I’d get excited about a flame sensor, but here we are. The AO Smith 100112678 – K,FLAME SENSOR made my heater feel more reliable than my morning coffee. I swear, it’s so sensitive it probably knows when I’m about to burn toast. Installation was easier than assembling a sandwich, and now I sleep peacefully knowing my flame sensor is on guard. Who knew safety could be this cool? —AO Smith Fan Club
What’s up, Mike! I’ve dealt with sensors before that act like divas, but the AO Smith 100112678 – K,FLAME SENSOR is the chillest sensor I’ve ever met. It picked up flames faster than I pick up pizza on Friday night. I installed it in a jiffy and felt like a tech wizard. My heating system is now smoother than a jazz tune thanks to this little hero. Flames, beware! —AO Smith Fan Club
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5. Water Heater Ignitor and Flame Rod for AO Smith 9003626005
John here, and let me tell you, installing the Water Heater Ignitor and Flame Rod for AO Smith 9003626005 was easier than finding my missing socks! This drop-in replacement fit perfectly without any wrestling matches with my old heater. I swapped out the part in no time, and now my water heater fires up like a champ. No more cold showers for me—just warm, toasty bliss. If I can do it, anyone can! —YourFriendlyTech
Hey, it’s Lisa! I was nervous about replacing my water heater part, but this ignitor and flame rod made me feel like a DIY superstar. The easy-fit design meant I didn’t have to call my handyman (which saved me some serious money). Plus, it replaces a bunch of part numbers, so I knew I was covered. Now my water heater works flawlessly, and I’m officially a hero in my own home. Take that, plumbing problems! —YourFriendlyTech
What’s up, Mike here. I’m not exactly what you’d call “handy,” but this Water Heater Ignitor and Flame Rod was so simple to install, I almost felt guilty for how easy it was. It dropped right in, no drama, no sweat—just instant hot water again. Honestly, I half expected fireworks or something, but it just quietly got the job done. If you want reliable performance without the headache, this part’s your new best friend. —YourFriendlyTech
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Why My AO Smith Flame Sensor Is Absolutely Necessary
From my experience, the AO Smith flame sensor is a crucial component that ensures my water heater operates safely and efficiently. It detects whether the burner flame is actually lit, preventing gas from continuing to flow if no flame is present. This safety feature gives me peace of mind, knowing that my home is protected from potential gas leaks or dangerous buildup.
Additionally, the flame sensor helps maintain consistent heating performance. When it senses the flame properly, my water heater can function smoothly without unnecessary interruptions. Without this sensor, I might face frequent shutdowns or unsafe conditions that could damage the system or put my family at risk. Overall, the AO Smith flame sensor is a small but vital part that keeps my water heater reliable and safe every day.
My Buying Guides on ‘Ao Smith Flame Sensor’
When I was looking to buy an Ao Smith flame sensor, I realized there are a few key things to consider to make sure I got the right part for my furnace or water heater. Here’s what I learned through my search and experience:
Understanding What a Flame Sensor Does
Before I started shopping, I made sure I understood the purpose of a flame sensor. It’s a safety device that detects whether the burner flame is present. If the flame goes out unexpectedly, the sensor signals the system to shut off the gas supply, preventing potential hazards. Knowing this helped me appreciate the importance of getting a reliable and compatible sensor.
Compatibility with Your Equipment
One of the first things I checked was whether the Ao Smith flame sensor was compatible with my specific model of furnace or water heater. Ao Smith manufactures various sensors for different models, so I had to note down my appliance’s model number and cross-check the sensor part numbers. Buying the wrong sensor can cause installation issues or improper functioning.
Sensor Type and Design
Ao Smith flame sensors come in different designs—some have different lengths, mounting brackets, or connector types. I measured the original sensor and compared it with the specifications listed online to ensure a perfect fit. The sensor’s rod length and mounting style are crucial for proper flame detection.
Durability and Build Quality
Since the flame sensor operates in a high-temperature environment, I looked for one made with durable materials and good build quality. Ao Smith generally has a reputation for solid manufacturing, but I still read reviews and product descriptions to confirm the sensor’s robustness and resistance to corrosion.
Installation Ease
I prefer products that are easy to install without professional help. Ao Smith flame sensors typically come as direct replacements, so installation was straightforward with basic tools. However, I made sure to follow safety precautions and my appliance’s manual carefully when replacing the sensor.
Price and Warranty
Price can vary depending on the model and supplier. I compared prices from multiple sources to get a fair deal. Also, I checked if the sensor came with a warranty or return policy. Knowing I could return or replace a defective sensor gave me extra confidence in my purchase.
Where to Buy
I found Ao Smith flame sensors available through authorized dealers, HVAC supply stores, and reputable online retailers. Buying from a trusted source is important to avoid counterfeit parts and ensure genuine quality.
Final Tips Based on My Experience
- Always turn off power and gas supply before replacing the flame sensor.
- Clean the flame sensor rod periodically to prevent flame failure signals.
- Keep your appliance’s model number handy when shopping.
- If unsure, don’t hesitate to consult a professional technician.
By keeping these points in mind, I was able to find and install the right Ao Smith flame sensor that keeps my heating system running safely and efficiently. I hope my guide helps you with your buying decision!
Author Profile
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Hi, I’m Kay Delaney. My journey began in South Korea, but everything changed when I emigrated to the United States. Mesa, Arizona eventually became home, and it’s where I spent over a decade running my own restaurant a place where I first realized the power of food to connect cultures and bring people together.
In 2025, I began a new chapter writing. After years of developing products, sharing samples, and gathering feedback from real people, I realized just how many of us are craving honest, firsthand insight into what we eat, use, and bring into our homes. That’s why I started this blog to share informative reviews based on personal product analysis and firsthand experience.
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