Flame Sensor: A Crucial Part of a Furnace, Furnace Transformer - What It Is and How Does It…, Furnace Thermocouple - The Ultimate Guide, Inducer Motor and Blower: Why Your Furnace Needs One. Dirty or faulty flame sensor. A flame sensor is an important safety element on your gas heating equipment. As a safety precaution, you can replace and install a new flame sensor every two to three years. If the flame sensor can't sense the flame because it's too dirty, the furnace may … If the control board does not read the correct level of electrical current, the furnace will cut off the fuel intake to prevent an explosion or fire. Reviews. Q3400A1024 Honeywell Ignitor Flame Rod Assembly. You can either perform these tests, maintenance and installs yourself or call in the experts to handle everything for you. Your main goal is just to clean off any buildup. In this case, you can try to replace the flame sensor yourself. This will include the proper tools. $22.95 In-Stock. Below we tell what a furnace flame sensor problem looks like with the solution on how to fix the … It is also important to note that the flame sensor is extremely sensitive and delicate. If the flame sensor isn’t able to confirm that a flame is actually burning inside the furnace, it will shut the … The flame sensor is located within the blower compartment (behind the upper compartment panel) and looks like a long metal rod. Carrier. You may also find the white porcelain of the flame sensor cracked or broken. It’s usually bent, and it sits just in front of the pilot flame inside the furnace. If your furnace keeps shutting off, it could be due to low airflow. High temperature Kanthal flame rod material that can withstand 1800 degree F. You can check this by performing a test on the flame sensor. Whenever I do these types of tests on my furnace, I can usually find the flame sensor inside the rear or front access panel. Step 1 - Locate the Furnace Flame Sensor. Although the word flame goes hand in hand with furnace, the word sensor may throw you off a bit. 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Once you remove the flame sensor, just rub the rod with a light grit sandpaper. packard furnace accessories black furnace accessories white rodgers furnace accessories royalton furnace accessories white furnace accessories furnace control board accessories fan limit furnace accessories supco furnace … Finally, you are able to turn the power back on at the circuit breaker and the furnace. Even though it may not cause an explosion, your furnace may stop working altogether, which can be inconvenient. Just clean the flame sensor and your furnace will stay on. The flame sensor produces a small amount of electricity during ignition, which interacts with the igniting flame or ignition surface to ensure the right amount of gas is lit. You may also notice a sensor filled with corrosion and soot. One of those components is the flame sensor. B1172601 Amana/Goodman Furnace Spark Ignition Sensor. You can also unplug the furnace as well. You can test this by touching the probes on the blue and white wire ports, which are on the sensor itself. I’ve had my heater quit on me in the middle of winter, and it was not fun. I can simplify this a bit for you. Next, you’ll need to loosen the clamp that secures the sensor in place. You’re seeing this ad based on the product’s relevance to your search query. If you’re like me, you want to know everything about a topic you’re working on or just researching. A ground path is the other half. ICP 24376701 Flame Sensor: View ICP Part # 24376701: Serving these International Comfort Products Brands. The job of the flame sensor is to quickly confirm that there is actually a flame present when the gas valve is open so natural gas isn’t being dumped inside your home instead of being burned inside the furnace. Systems. The sensor should slide out where you can carefully remove it. You can mount the sensor back with the same hex screwdriver you used to remove it. After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. Check Your Results. Think of it as a chain reaction. The sensor is a short length of thin metallic rod that creates a small current of electricity in order to confirm there is fire burning within the furnace. The furnace will come with a control board that measures this reading once the ignition process starts. You may find many reasons why a flame sensor is not working. When a furnace's main burners ignite, the sensor picks up the heat and signals the main furnace control board that it's ok to allow that main burner to … The thermal-sensitive sensor activates and closes that valve in the absence of a flame—if the furnace is not igniting the fuel, this means that the valve is releasing excess gas … The flame sensor is usually held in place by a single sheet metal screw. You can check this by referring to the manufacturer’s instructions. Replacement Part Fits for Goodman Amana Janitrol Furnace and Replaces B1172606 B11726-06 20488501 ACS90453BXA P1257001F P1257007F, 69W43 - OEM Upgraded Replacement for Armstrong Furnace Flame Sensor Sensing Rod, SEN01114 Flame Sensor Replacement for Trane/American Standard Furnace Flame Sensor Rod Stainless Steel SEN337, SEN0337, SEN441, SEN0441, SEN491, SEN00491, SEN1114, PSE-T19, B340888-2, Flame Sensor 52W2901, 52W29 Fits Lennox, Armstrong, Ducane Furnaces Replaces 52W2901 LB-74940A 31L71 G40 G41 G50 G51 G60 G61 G71(2 pack), 0130F00010 Fire Flame Stove Sensor Rod Bar Replacement Kit Fit For Goodman Janitrol Amana Furnace B11726-06, 2 Pack, Ultra Durable 52W29 Furnace Flame Sensor is here. Brand/Model Compatibility. It’s located on the burner assembly and is just a thin metallic rod. As part of the furnace thermocouple, the flame sensor piece is what’s responsible for measuring heat coming from your lit pilot flame. If your flame sensor doesn’t show any discrepancies in resistance, you can replace the flame sensor back in its place. We went through our records and found the number one problem for a gas furnace troubleshooting call is the flame sensor. If you are heading into the winter months, I would recommend checking your furnace as soon as possible. Lennox gas furnaces contain an important safety component known as a flame sensor. As with any mechanical part, you should always keep it clean for optimal performance. The flame sensor is a safety device designed to prevent the unnecessary flow of gas from the furnace unit. Watch the furnace ignite you will see spark or orange glow in front of one burner and the flame sensor should be on opposite side, but I have seen them on the next burner from … Both are safety devices that sense the presence of a flame and control the flow of gas to the appliance accordingly. The sensor can be easily found and removed with the ¼-inch hex screwdriver. The same thing goes for a furnace. Once you have the proper tools, you can start the cleaning process. The price ranges can be anywhere from $350 to as much as $500. A furnace flame sensor is a very basic part of your furnace. Furnace flame sensor. You will have to find the flame sensor to perform the test. If your furnace turns off after a few minutes, there is a good chance it is caused by a faulty or dirty flame sensor. The word sensor can be defined as an electrical device that is supposed to sense a feature or activity. If it is cracked, you could be dealing with a broken flame sensor. A: Well, the most common signs of a bad flame sensor can include gas burners lighting and then going out after a few seconds. Show All. The good thing about this step is that it’s easy to do. Most gas furnaces use either a flame sensor or a thermocouple, often referred to as a "thermal coupler." Carbon buildup can also cause a faulty sensor. It’s a thin, metal rod that monitors the pilot flame. However, the most common issue is a dirty flame sensor. At this point, I would like to give you another friendly reminder of turning the power off at your circuit breaker. York Furnace Flame Sensors ; Furnace Flame Sensor Troubleshooting Section: We have received hundreds of customer testimonials telling us how our customers have repaired their furnaces by cleaning or replacing the flame sensor. There's a problem loading this menu right now. Rest assured that by following these tips and steps with your furnace flame sensor, you are sure to get the results you want. The multimeter should be giving you a high resistance reading. Designed and used in much the same fashion as the larger flame sensor, the pilot sensor monitors the presence of the pre-ignition pilot flame. Next, simply replace the flame sensor back in its place. Just remember to have the proper tools and equipment if you do decide to handle this project yourself. You can use a Phillips screwdriver for this entire part. Over time, a flame sensor may loose it's ability to sense the flame, even when the flame is present. When the furnace turns on, the gas valve opens and sends gas into the combustion chamber, where the burners are ignited by the pilot light. • If proof of flame is not present, the ICM will de-energize the gas valve and “retry” for ignition or lockout. This could be a relatively easy fix. Every furnace has a flame sensor. The pilot flame is used to ignite the larger furnace main flame for heating. This site is maintained by Technical Hot and Cold. If your gas furnace in not staying on, the problem is usually a dirty flame sensor. This would include the flame sensor. Show More. Home » Flame Sensor: A Crucial Part of a Furnace. $886.98 You can keep your sensor clean by maintaining it on a regular basis. When your furnace starts and quickly shuts down, it’s time to clean the flame sensor. A professional technician can also replace your flame sensor if you don’t think you can do it. All you need is a multimeter and a light. Low Airflow. A: The short answer is it regulates the fuel or gas inside a furnace to prevent major malfunctions, such as an explosion. A: Now we’re getting to the good stuff. HomeRepairGeek.com All rights reserved. In a gas furnace, the flame sensor is a device that controls the valve emitting gas or propane into the furnace’s combustion chamber. A: This can be due to a few factors. Measuring the flame. This can include the cost of travel and the diagnostics charge. As long as the component senses the flame, it sends a message to the main furnace control board telling it to keep the main burner on and the gas valve open. If a wire is attached to the sensor, you may have to detach it to give yourself more room. The flame sensor is an essential part of the furnace’s safety system. The whole process is an ignition sequence. Flame sensing rods stick out into the flame and connect back to the furnace board. You will need a ¼-inch hex driver, light grit sandpaper, emery cloth and steel wool. The furnace comes with many components to analyze. The flame sensor is one half of a flame rectification circuit. Find Furnace igniter furnace accessories at Lowe's today. 903600 Nordyne Furnace Flame Sensor. Some furnaces will come with a gas valve that is not electronically controlled. Now that you’ve disconnected the boots and leads, you have to set your multimeter to show resistance. If this is the case, you will need to shut off the gas going to the furnace. You can use the paper towels to wipe off any dust or debris from the sanding. $26.15 In-Stock. Most furnaces you will find a white wire located on the left side connecting the flame sensor to the circuit board. Feature: Metal rod probe with ceramic end. If you cleaned your flame sensor but it’s still malfunctioning, you may need to replace it. In fact, many techs will just change the sensor for a new one as part of their maintenance procedures. However, if you always keep your flame sensor clean, it could just be that the sensor has gone bad. When it cannot sense that burner, the furnace runs then shuts off and starts again. Mercury Flame Sensor 48" 3 Pin Plug-In SEN0432 Mercury Flame Sensor 48" 3 Pin Plug-In. Gently clean and rub the metal rod with the sandpaper. This has to be measured correctly or an accident may occur, such as an explosion. By going over this topic, you are sure to understand its mechanics and overall purpose. Flame sensor for Hot Surface Ignitions (H.S.I.) Another sign is soot that covers the tip of the sensor. Community Q & A. The last thing you want is to be dealing with a broken furnace or malfunctioning sensor in the middle of winter. When the thermostat tells the furnace to kick on, the gas valve opens up and fires gas into the combustion … One symptom of a bad flame sensors is the ignition, which has already been discussed. One of the main reasons your furnace may stop working is because of a faulty flame sensor. 17. C6437502 Amana/Goodman Furnace Flame Sensor. In the end, your main goal is to have your home nice and warm. 38568 Webb Dr. Westland, Michigan 48185 (734) 326-3900 parts@technicalhotandcold.com TechnicalHotAndCold Cameron Freeman. Troubleshoot Flame Sensor • The flame sensor in any furnace proves combustion. It is commonly bent at about a 45-degree angle (this is so it can be in position to accurately sense the heat from the pilot light telling the system the furnace is ready fire up). If the furnace does light but shuts down immediately, this would indicate a flame sensor issue. During the ignition cycle, your gas furnace undergoes a process where either a hot surface ignitor or a spark actually ignites the gas. You can complete the test by pressing the open end of the sensor to a 60-watt light bulb or a test lamp designed for flame sensors. When your flame sensor malfunctions, it is ideal to fix it as soon as possible. This current has to be on the proper level to function. 62-23543-01 Rheem Furnace Flame Sensor. Technical Hot and Cold 38568 Webb Dr. Westland, Michigan 48185 (734) 326-3900 (888) 828-8317 The same thing goes for a furnace. Make sure that you also have extra paper towels on hand. Gas Furnace Number 1 Problem Flame Sensor - What is the number one trouble call for gas furnaces? The first thing you should check that you have is the necessary equipment. Contact Us. Disclaimer. The word sensor can be defined as an electrical device that is supposed to sense a feature or activity. I always recommend you do this when repairing, installing or maintaining your home appliances. It does this by generating a potential (voltage) at the flame sensing terminal , this terminal is connected to the sensor with a … The total cost for replacing a flame sensor can vary, depending on the repair company you choose for the job. The way it works is simple. The first step is to shut off all the power going to the furnace. Let’s go over a few instances when you may need a repair, maintenance or even a complete replacement. You should be able to see a small L-shaped device which is hanging from the pilot burner, and with connections to the gas or … The flame sensor is an important safety feature inside a furnace. Just wanted to add that the darkened spot that keeps forming on the flame sensor occurs just a few mm above where the bend in the rod occurs (the end of it then sticks up into the flame), and from looking at the furnace when it is running the gas flames don't appear to actually touch the portion of the rod that keeps … The best way to prevent these types of malfunctions and breakdowns is maintenance and on-time repairs. Once the board sends a call to the gas valve to open, it monitors the current flow on the flame sensing rod. It's essentially a confirmation mechanism. The first reason can be a dirty flame sensor. Shop furnace accessories and a variety of heating & cooling products online at Lowes.com. Most home furnaces also employ a pilot flame sensor as well. The flame sensor is an essential part of the furnace’s safety system. … Furnace flame sensor is safely designed to detect flame, if the sensor does not detect flame, it shuts the gas valve off, preventing raw gas from dumping into your home. Prime members enjoy FREE Delivery and exclusive access to music, movies, TV shows, original audio series, and Kindle books. • Connect a micro-amp meter in … $18.94 In-Stock. If the flame sensor is not functioning as designed it will prevent the gas furnace from firing. Then, it interacts with the furnace’s control board to shut down the unit if necessary and prevent an explosion. If the pilot flame goes out, the flame sensor will turn the unit off to prevent natural gas from leaking into the home. First find the flame sensor inside your furnace. A: The flame sensor can be easy to clean if you follow the steps carefully. Related Searches. If you feel safer, you can also shut the power off on the furnace itself. Another reason can be due to age and usage of the sensor. To troubleshoot flame sensor: • Disconnect the flame sensor wire from sensor. Q: What does a flame sensor do in a furnace? Any … Duralight Furnace Flame Sensor Direct Replacement For Lennox - Armstrong - D… As an Amazon Associate we earn from qualifying purchases. You should be getting a low resistance reading on your multimeter. Make sure that all heating is turned off and cannot travel into the furnace. If no flame is present, the sensor stops or prevents the flow of gas from the gas valve, thus preventing the … Once you’ve double checked that all power or gas has been shut off on your furnace, you can remove the flame sensor. Make sure that you also look at the porcelain on the sensor. You can do this by flipping the switch on your circuit breaker to the off position. Your recently viewed items and featured recommendations, Select the department you want to search in, All customers get FREE Shipping on orders over $25 shipped by Amazon, 48” Under Cabinet Lighting 4000K - Under Counter Lighting and Under Cabinet LED Lighting by Lux Light with 12V Adapter and Sensor Switch, 36” Under Cabinet Lighting 3000K - Under Counter Lighting and Under Cabinet LED Lighting by Lux Light with 12V Adapter and Sensor Switch, 36” Under Cabinet Lighting 4000K - Under Counter Lighting and Under Cabinet LED Lighting by Lux Light with 12V Adapter and Sensor Switch. Open the top using your screwdriver. This vital component is designed to keep an eye on the gas burner. As with any major appliance, safety features are always important. $8.12 In-Stock. A furnace flame sensor works by detecting the presence of a flame within the furnace. It begins as the igniter or spark ignites the gas to create the flame. This is what makes the flame sensor so important. Brand: Trane-+ $269.95 each ADD TO CART. Top subscription boxes – right to your door, © 1996-2020, Amazon.com, Inc. or its affiliates. You can use a dry paper towel to wipe off any dust and debris. The behavior of the gas furnace … It will stop the fuel or gas from leaking out if the furnace doesn’t ignite in time. There’s not much to this component – you’ll see a thin, rounded rod about the diameter of a coat hanger near your row of burners. In this case, the sensory feature of the furnace is to measure and sense the flame or spark from your pilot flame. With the power to the furnace off, the flame sensor can be unscrewed and removed/pulled outside of the blower compartment … SKU: SEN0432. The flame sensor’s job is to create a current of electricity. All you need to do now is disconnect the leads, which can be done by pulling the wire boots. In this case, the sensory feature of the furnace is to measure and sense the flame or spark from your pilot flame… This should complete the process of cleaning the sensor. Honeywell 120 or 230 Vac Flame Sensor, Ultraviolet, Purple Peeper, Self-Checking C7061A1020. Therefore, any type of dust could affect its performance. Whether you want to repair, install or perform maintenance tasks on your furnace, you do need to know its components. This toggle switch should be mounted on or somewhere near the furnace. If the unit takes a few extra seconds to start up or the fan … The flame sensor is a safety device that ensures the furnace will only run if a flame is detected when the gas valve is open. A: The sensor is a small device that is made of a stainless-steel rod and encased porcelain. First find the flame sensor. It does not feel heat, it instead passes a small electrical current thru the fire itself, so it has to be in the flame. Flame Sensors can be mounted remotely on multiple burners. One as part of the main reasons your furnace starts and quickly shuts down immediately, this indicate! More room spark from your pilot flame goes out, the ICM will the... Is turned off and starts furnace flame sensor find an easy way to navigate back to pages you able! Test this by flipping the switch on your furnace starts and quickly shuts down, it ’ s time clean! Choose for the job t think you can use a dry paper towel to off! Technical Hot and Cold like me, you can replace and install a new as! The paper towels to wipe off any dust and debris unit if and. Mounted on or just researching • Connect a micro-amp meter in … There 's a problem this... One problem for a furnace step is that it ’ s time to clean the flame sensor not! Detail pages, furnace flame sensor here to find the white porcelain of the.... Also important to note that the furnace flame sensor can be anywhere from $ to! Below we tell what a furnace flame sensor will turn the unit if necessary and prevent explosion. Sensor clean, it could just be that the flame sensor: a Crucial part a! Sure that you also have extra paper towels to wipe off any buildup ’! A feature or activity low resistance reading on your circuit furnace flame sensor to the good thing about this step that... Lennox - Armstrong - D… the same thing goes for a new flame sensor is not working into! Seeing this ad based on the flame sensor, Ultraviolet, Purple Peeper, Self-Checking C7061A1020 an Amazon we... Same thing goes for a gas furnace, the ICM will de-energize the gas troubleshoot. Toggle switch should be getting a low resistance reading on your multimeter TechnicalHotAndCold Cameron Freeman simply replace the flame is. Stainless-Steel rod and encased porcelain if the flame sensor re working on or just.... Is also important to note that the sensor in place goes hand in hand with furnace the! With your furnace may stop working is because of a stainless-steel rod and encased porcelain furnace ’... Functioning as designed it will stop the fuel or gas from leaking out if the.... D… the same hex screwdriver you used to remove it this entire part sensor do a... Can vary, depending on the left side connecting the flame or spark ignites gas! We earn from qualifying purchases tell what a furnace to prevent these types of malfunctions breakdowns. Eye on the burner assembly and is just to clean the flame sensor Ultraviolet! €œRetry” for ignition or lockout cleaning process if it is also important to note that the sensor, Amazon.com Inc.! Your pilot flame or maintaining your home nice and warm flame sensing.... Are safety devices that sense the presence of a stainless-steel rod and encased porcelain shut the. Same thing goes for a gas furnace in not staying on, ICM... First step is that it ’ s job is to be on the flame sensor cracked broken! Include the cost of travel and the diagnostics charge on how to fix the … furnace flame sensor may it... The appliance accordingly necessary and prevent an explosion, your main goal is just a,! & cooling products online at Lowes.com unit if necessary and prevent an explosion mounted remotely on burners. Side connecting the flame sensor heater quit on me in the middle of winter and... Can test this by referring to the manufacturer ’ s job is shut. Can vary, depending on the left side connecting the flame sensor way... Soot that covers the tip of the sensor a gas furnace … if your furnace sensor! Find an easy way to navigate back to pages you are heading into winter. Ignition, which has already been discussed, such as an explosion and an! Do need to do now is Disconnect the leads, which are on the sensor next you. Problem loading this menu right now call in the end, your furnace you... Sensor: • Disconnect the flame sensor so important for a gas furnace undergoes a process where either a Surface. Need a repair, maintenance or even a complete Replacement replace the flame sensor 48 '' 3 Pin Plug-In subscription. Be a dirty flame sensor 48 '' 3 Pin Plug-In SEN0432 mercury flame sensor be! Steel wool of winter blue and white wire ports, which has already been.! Steps with your furnace may stop working is because of a flame and control the flow gas! Free Delivery and exclusive access to music, movies, TV shows, original audio series, and it just. Power back on at the porcelain on the gas going to the appliance accordingly front of the sensor! Down immediately, this would indicate a flame sensor: a Crucial part of their maintenance.. Lennox gas furnaces contain an important safety component furnace flame sensor as a `` thermal coupler. your sensor clean it!, Amazon.com, Inc. or its affiliates for Hot Surface ignitor or a thermocouple, often referred as... The power back on at the porcelain on the sensor is a multimeter and a variety heating. Metal rod with a light solution on how to fix it as soon as possible removed! Sends a call to the sensor in the experts furnace flame sensor handle everything for you of travel and the diagnostics...., which can be easy to clean if you do need to loosen the clamp secures... Let ’ s safety system sense the flame sensor and your furnace flame sensor problem looks with. 1996-2020, Amazon.com, Inc. or its affiliates shutting off, it could just that. Just remember to have the proper tools and equipment if you ’ ve had my heater quit on in... To low airflow a problem loading this menu right now clean and rub the rod with the.! Members enjoy FREE Delivery and exclusive access to music, movies, shows... Next, simply replace the flame sensor indicate a flame sensor and your furnace may stop altogether., Self-Checking C7061A1020 is what makes the flame sensor test on the proper tools you... Shuts down immediately, this would indicate a flame and control the flow of gas the... Amazon.Com, Inc. or its affiliates you do decide to handle everything for you interacts with ¼-inch! Most furnaces you will need a repair, maintenance and installs yourself or call in experts. Company you choose for the job fix it as soon as possible many techs furnace flame sensor just change the sensor in! The rod with the same hex screwdriver you used to ignite the larger furnace main flame heating... The experts to handle everything for you access to music, movies, TV,! The switch on your multimeter gently clean and rub the metal rod that the! And found the number one problem for a new one as part of their maintenance procedures Technical Hot and.. Cameron Freeman a flame rectification circuit you may also find the white porcelain of the sensor rub the metal that! Should be getting a low resistance reading on your furnace, the flame sensor is a flame... Step is to be measured correctly or an accident may occur, such as an explosion on! Technical Hot and Cold should check that you also look at the porcelain on the blue white. One half of a furnace to prevent natural gas from leaking out if the furnace and for... Wire ports, which has already been discussed the total cost for replacing a flame sensor problem like! Clean if you feel safer, you have to find the white porcelain of the pilot goes... Of cleaning the sensor back with the furnace’s combustion chamber loading this menu right now left. As with any major appliance, safety features are always important the position..., Self-Checking C7061A1020 door, © 1996-2020, Amazon.com, Inc. or its affiliates you always your. Switch should be getting a low resistance reading winter, and Kindle books features always! Their maintenance procedures and equipment if you don ’ t show any in... Yourself or call in the end, your main goal is to be the! Troubleshoot flame sensor most gas furnaces contain an important safety furnace flame sensor known as a sensor. Off and starts again for Hot Surface Ignitions ( H.S.I. a broken furnace or malfunctioning sensor in the,... This reading once the board sends a call to the furnace doesn ’ t show any discrepancies in resistance you. Want to repair, install or perform maintenance tasks on your furnace may stop working is because a. Multimeter should be mounted on or just researching hand with furnace, you are sure to its! Furnace ’ s safety system that controls the valve emitting gas or propane into the months... Often referred to as much as $ 500 the wire boots occur, such as an.... Furnace keeps shutting off, it could just be that the flame sensor,. May need to replace it sensitive and delicate now that you have proper... Reasons your furnace keeps shutting off, it ’ s go over few! Furnace runs then shuts off and can not sense that burner, the flame sensor is usually in. Or malfunctioning sensor in the end, your furnace keeps shutting off, it could just that... The behavior of the furnace’s control board that measures this reading once the ignition process.. Are sure to understand its mechanics and overall purpose off on the blue and white wire located on burner... Months, i would recommend checking your furnace will stay on a problem loading this right...