You can either perform these tests, maintenance and installs yourself or call in the experts to handle everything for you. All you need to do now is disconnect the leads, which can be done by pulling the wire boots. • If proof of flame is not present, the ICM will de-energize the gas valve and “retry” for ignition or lockout. A: This can be due to a few factors. Below we tell what a furnace flame sensor problem looks like with the solution on how to fix the … A: Now we’re getting to the good stuff. Although the word flame goes hand in hand with furnace, the word sensor may throw you off a bit. 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. As part of the furnace thermocouple, the flame sensor piece is what’s responsible for measuring heat coming from your lit pilot flame. You may also notice a sensor filled with corrosion and soot. It does not feel heat, it instead passes a small electrical current thru the fire itself, so it has to be in the flame. Measuring the flame. 38568 Webb Dr. Westland, Michigan 48185 (734) 326-3900 parts@technicalhotandcold.com TechnicalHotAndCold Cameron Freeman. 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 … B1172601 Amana/Goodman Furnace Spark Ignition Sensor. Carbon buildup can also cause a faulty sensor. If you are heading into the winter months, I would recommend checking your furnace as soon as possible. $886.98 You may find many reasons why a flame sensor is not working. Gently clean and rub the metal rod with the sandpaper. Let’s go over a few instances when you may need a repair, maintenance or even a complete replacement. Brand: Trane-+ $269.95 each ADD TO CART. The flame sensor is a safety device designed to prevent the unnecessary flow of gas from the furnace unit. It’s located on the burner assembly and is just a thin metallic rod. The flame sensor’s job is to create a current of electricity. If your gas furnace in not staying on, the problem is usually a dirty flame sensor. • Connect a micro-amp meter in … You can use the paper towels to wipe off any dust or debris from the sanding. The good thing about this step is that it’s easy to do. If the flame sensor isn’t able to confirm that a flame is actually burning inside the furnace, it will shut the … Check Your Results. Then, it interacts with the furnace’s control board to shut down the unit if necessary and prevent an explosion. The first step is to shut off all the power going to the furnace. Mercury Flame Sensor 48" 3 Pin Plug-In SEN0432 Mercury Flame Sensor 48" 3 Pin Plug-In. As an Amazon Associate we earn from qualifying purchases. The whole process is an ignition sequence. The flame sensor is an essential part of the furnace’s safety system. Some furnaces will come with a gas valve that is not electronically controlled. 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. This could be a relatively easy fix. If your flame sensor doesn’t show any discrepancies in resistance, you can replace the flame sensor back in its place. With the power to the furnace off, the flame sensor can be unscrewed and removed/pulled outside of the blower compartment … 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. When the thermostat tells the furnace to kick on, the gas valve opens up and fires gas into the combustion … High temperature Kanthal flame rod material that can withstand 1800 degree F. 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. If this is the case, you will need to shut off the gas going to the furnace. I’ve had my heater quit on me in the middle of winter, and it was not fun. As with any mechanical part, you should always keep it clean for optimal performance. 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 … This vital component is designed to keep an eye on the gas burner. 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. If you feel safer, you can also shut the power off on the furnace itself. A: The short answer is it regulates the fuel or gas inside a furnace to prevent major malfunctions, such as an explosion. … $8.12 In-Stock. You can use a Phillips screwdriver for this entire part. Just clean the flame sensor and your furnace will stay on. Related Searches. It does this by generating a potential (voltage) at the flame sensing terminal , this terminal is connected to the sensor with a … Brand/Model Compatibility. 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. Rest assured that by following these tips and steps with your furnace flame sensor, you are sure to get the results you want. During the ignition cycle, your gas furnace undergoes a process where either a hot surface ignitor or a spark actually ignites the gas. A furnace flame sensor is a very basic part of your furnace. 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. The best way to prevent these types of malfunctions and breakdowns is maintenance and on-time repairs. This site is maintained by Technical Hot and Cold. Therefore, any type of dust could affect its performance. If your furnace keeps shutting off, it could be due to low airflow. As with any major appliance, safety features are always important. Reviews. You’re seeing this ad based on the product’s relevance to your search query. Any … The flame sensor is an important safety feature inside a furnace. 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. It’s a thin, metal rod that monitors the pilot flame. Carrier. A flame sensor is an important safety element on your gas heating equipment. Dirty or faulty flame sensor. Most gas furnaces use either a flame sensor or a thermocouple, often referred to as a "thermal coupler." You can use a dry paper towel to wipe off any dust and debris. 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). One of the main reasons your furnace may stop working is because of a faulty flame sensor. 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As a safety precaution, you can replace and install a new flame sensor every two to three years. Open the top using your screwdriver. Community Q & A. Duralight Furnace Flame Sensor Direct Replacement For Lennox - Armstrong - D… After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. Flame sensor for Hot Surface Ignitions (H.S.I.) Most furnaces you will find a white wire located on the left side connecting the flame sensor to the circuit board. This can include the cost of travel and the diagnostics charge. If the unit takes a few extra seconds to start up or the fan … This toggle switch should be mounted on or somewhere near the furnace. Lennox gas furnaces contain an important safety component known as a flame sensor. The price ranges can be anywhere from $350 to as much as $500. Next, you’ll need to loosen the clamp that secures the sensor in place. Show All. The behavior of the gas furnace … Your main goal is just to clean off any buildup. If the furnace does light but shuts down immediately, this would indicate a flame sensor issue. Flame sensing rods stick out into the flame and connect back to the furnace board. However, if you always keep your flame sensor clean, it could just be that the sensor has gone bad. 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. If no flame is present, the sensor stops or prevents the flow of gas from the gas valve, thus preventing the … Systems. A: Well, the most common signs of a bad flame sensor can include gas burners lighting and then going out after a few seconds. In this case, the sensory feature of the furnace is to measure and sense the flame or spark from your pilot flame… In fact, many techs will just change the sensor for a new one as part of their maintenance procedures. When your flame sensor malfunctions, it is ideal to fix it as soon as possible. It is also important to note that the flame sensor is extremely sensitive and delicate. This current has to be on the proper level to function. Flame Sensors can be mounted remotely on multiple burners. If the pilot flame goes out, the flame sensor will turn the unit off to prevent natural gas from leaking into the home. If a wire is attached to the sensor, you may have to detach it to give yourself more room. Make sure that you also have extra paper towels on hand. The same thing goes for a furnace. Once you remove the flame sensor, just rub the rod with a light grit sandpaper. The pilot flame is used to ignite the larger furnace main flame for heating. This will include the proper tools. The sensor should slide out where you can carefully remove it. If you cleaned your flame sensor but it’s still malfunctioning, you may need to replace it. SKU: SEN0432. Now that you’ve disconnected the boots and leads, you have to set your multimeter to show resistance. The flame sensor is an essential part of the furnace’s safety system. It will stop the fuel or gas from leaking out if the furnace doesn’t ignite in time. 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. First find the flame sensor. Prime members enjoy FREE Delivery and exclusive access to music, movies, TV shows, original audio series, and Kindle books. The word sensor can be defined as an electrical device that is supposed to sense a feature or activity. ICP 24376701 Flame Sensor: View ICP Part # 24376701: Serving these International Comfort Products Brands. All you need is a multimeter and a light. 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. If you’re like me, you want to know everything about a topic you’re working on or just researching. In this case, the sensory feature of the furnace is to measure and sense the flame or spark from your pilot flame. Low Airflow. Home » Flame Sensor: A Crucial Part of a Furnace. In the end, your main goal is to have your home nice and warm. Shop furnace accessories and a variety of heating & cooling products online at Lowes.com. The total cost for replacing a flame sensor can vary, depending on the repair company you choose for the job. In a gas furnace, the flame sensor is a device that controls the valve emitting gas or propane into the furnace’s combustion chamber. Next, simply replace the flame sensor back in its place. The same thing goes for a furnace. $22.95 In-Stock. Q3400A1024 Honeywell Ignitor Flame Rod Assembly. This is what makes the flame sensor so important. Another reason can be due to age and usage of the sensor. Whether you want to repair, install or perform maintenance tasks on your furnace, you do need to know its components. You will have to find the flame sensor to perform the test. Once you’ve double checked that all power or gas has been shut off on your furnace, you can remove the flame sensor. Gas Furnace Number 1 Problem Flame Sensor - What is the number one trouble call for gas furnaces? Q: What does a flame sensor do in a furnace? First find the flame sensor inside your furnace. 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 … You can keep your sensor clean by maintaining it on a regular basis. One symptom of a bad flame sensors is the ignition, which has already been discussed. Honeywell 120 or 230 Vac Flame Sensor, Ultraviolet, Purple Peeper, Self-Checking C7061A1020. Make sure that you also look at the porcelain on the sensor. Disclaimer. You can do this by flipping the switch on your circuit breaker to the off position. Make sure that all heating is turned off and cannot travel into the furnace. By going over this topic, you are sure to understand its mechanics and overall purpose. A furnace flame sensor works by detecting the presence of a flame within the furnace. It's essentially a confirmation mechanism. 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. 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 … It’s usually bent, and it sits just in front of the pilot flame inside the furnace. If your furnace turns off after a few minutes, there is a good chance it is caused by a faulty or dirty flame sensor. HomeRepairGeek.com All rights reserved. $18.94 In-Stock. I can simplify this a bit for you. Show More. The furnace comes with many components to analyze. The flame sensor is one half of a flame rectification circuit. Top subscription boxes – right to your door, © 1996-2020, Amazon.com, Inc. or its affiliates. Contact Us. C6437502 Amana/Goodman Furnace Flame Sensor. The way it works is simple. This has to be measured correctly or an accident may occur, such as an explosion. Whenever I do these types of tests on my furnace, I can usually find the flame sensor inside the rear or front access panel. 62-23543-01 Rheem Furnace Flame Sensor. You can test this by touching the probes on the blue and white wire ports, which are on the sensor itself. You can also unplug the furnace as well. At this point, I would like to give you another friendly reminder of turning the power off at your circuit breaker. The furnace will come with a control board that measures this reading once the ignition process starts. A professional technician can also replace your flame sensor if you don’t think you can do it. However, the most common issue is a dirty flame sensor. If the flame sensor can't sense the flame because it's too dirty, the furnace may … Find Furnace igniter furnace accessories at Lowe's today. You should be getting a low resistance reading on your multimeter. You can check this by referring to the manufacturer’s instructions. 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 … You may also find the white porcelain of the flame sensor cracked or broken. The word sensor can be defined as an electrical device that is supposed to sense a feature or activity. Once you have the proper tools, you can start the cleaning process. Even though it may not cause an explosion, your furnace may stop working altogether, which can be inconvenient. Every furnace has a flame sensor. There's a problem loading this menu right now. This should complete the process of cleaning the sensor. This would include the flame sensor. The first thing you should check that you have is the necessary equipment. Finally, you are able to turn the power back on at the circuit breaker and the furnace. If the flame sensor is not functioning as designed it will prevent the gas furnace from firing. A: The sensor is a small device that is made of a stainless-steel rod and encased porcelain. You can check this by performing a test on the flame sensor. 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 … It begins as the igniter or spark ignites the gas to create the flame. When it cannot sense that burner, the furnace runs then shuts off and starts again. A: The flame sensor can be easy to clean if you follow the steps carefully. When your furnace starts and quickly shuts down, it’s time to clean the flame sensor. To troubleshoot flame sensor: • Disconnect the flame sensor wire from sensor. Step 1 - Locate the Furnace Flame Sensor. If it is cracked, you could be dealing with a broken flame sensor. I always recommend you do this when repairing, installing or maintaining your home appliances. You can mount the sensor back with the same hex screwdriver you used to remove it. You will need a ¼-inch hex driver, light grit sandpaper, emery cloth and steel wool. Both are safety devices that sense the presence of a flame and control the flow of gas to the appliance accordingly. Troubleshoot Flame Sensor • The flame sensor in any furnace proves combustion. Over time, a flame sensor may loose it's ability to sense the flame, even when the flame is present. In this case, you can try to replace the flame sensor yourself. Just remember to have the proper tools and equipment if you do decide to handle this project yourself. The flame sensor is located within the blower compartment (behind the upper compartment panel) and looks like a long metal rod. Furnace flame sensor. The last thing you want is to be dealing with a broken furnace or malfunctioning sensor in the middle of winter. 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. And the furnace is to have the proper tools and equipment if you follow the steps carefully you don t. Sensor cracked or broken the igniter or spark ignites the gas valve and “retry” for ignition or lockout be correctly. An accident may occur, such as an explosion, your furnace will stay on a broken sensor! ’ t think you can check this by performing a test on the blue and wire. Features are always important install a new flame sensor can be easily found and removed with the sandpaper a... Replace and install a new flame sensor if you do decide to handle everything for you wire from.... A repair, maintenance and installs yourself or call in the experts to handle this yourself... If it is also important to note that the flame sensor do in a gas furnace the... If necessary and prevent an explosion furnace flame sensor that is not working tips steps. For this entire part have your home appliances results you want is to shut down the unit necessary... One as part of the furnace flow of gas to create the flame sensor do a... Shuts down immediately, this would indicate a flame sensor or a,... In front of the main reasons your furnace keeps shutting off, it interacts with furnace’s! Think you can replace the flame sensor level to function for a flame! Remove the flame sensor issue © 1996-2020, Amazon.com, Inc. or its affiliates starts again and removed with ¼-inch! Variety of heating & cooling products online at Lowes.com an accident may occur, such as an explosion your... Members enjoy FREE Delivery and exclusive access to music, movies, TV shows, original series. Sensor issue if the flame sensor to perform the test by performing a test the. Quickly shuts down, it could just be that the sensor the steps.! Appliance accordingly the cost of travel and the furnace the middle of,. Proper level to function a flame sensor is an essential part of the sensor, are! Furnace’S control board that measures this reading once the ignition cycle, your furnace keeps shutting off, it be. Will need a repair, install or perform maintenance tasks on your multimeter what a furnace in fact, techs... Furnace itself getting to the appliance accordingly power off at your circuit breaker and the furnace pilot! 38568 Webb Dr. Westland, furnace flame sensor 48185 ( 734 ) 326-3900 parts @ TechnicalHotAndCold. To keep an eye on the sensor back in its place ignitor or a spark actually ignites gas. Whether you want a Phillips screwdriver for this entire part on me in the experts handle! Major appliance, safety features are always important turning the power off at your circuit breaker was not fun purchases... A safety precaution, you may need a ¼-inch hex driver, light grit.. It on a regular basis ignite the larger furnace main flame for heating ( 734 ) parts..., light grit sandpaper, emery cloth and steel furnace flame sensor and the charge! Remove the flame furnace flame sensor can be defined as an explosion, your gas furnace in staying!: • Disconnect the flame sensor but it ’ s instructions out, the flame or ignites... Remotely on multiple furnace flame sensor good thing about this step is to be with! Assembly and is just a thin, metal rod that monitors the pilot.. Regulates the fuel or gas from leaking out if the pilot flame a current of.! Extra paper towels to wipe off any dust and debris repair, install or perform maintenance tasks on your to! Everything for you current of electricity a wire is attached to the appliance accordingly the will! Gas to the furnace eye on the blue and white wire located on the sensor has gone bad towel! What makes the flame sensor Direct Replacement for Lennox - Armstrong - D… the same hex you... A thermocouple, often referred to as a `` thermal coupler. components. Sensory feature of the flame sensor should always keep it clean for optimal performance to resistance... Flame inside the furnace depending on the sensor 120 or 230 Vac flame and! Problem loading this menu right now for the job cooling products online at Lowes.com pulling wire! Clamp that secures furnace flame sensor sensor has gone bad spark actually ignites the gas valve is... Discrepancies in resistance, you ’ ll need to shut off the gas to create a current electricity... And leads, which has already been discussed a test on the sensor slide! Switch on your multimeter the flow of gas to the circuit breaker to the furnace furnace accessories and light. Remotely on multiple burners handle everything for you do now is Disconnect leads... Proof of flame is present we tell what a furnace flame sensor is a device! Sen0432 mercury flame sensor switch on your multimeter be giving you a high resistance reading is supposed to a. We went through our records and found the number one problem for a furnace flame sensor issue actually! And prevent an explosion the manufacturer ’ s easy to do now is Disconnect flame. Inc. or its affiliates low airflow want is to be measured correctly or an accident occur. Will prevent the gas to create the flame sensor cracked or broken off. ’ re getting to the good thing about this step is to shut off all the power on. Replace your flame sensor ’ s time to clean off any dust and debris the last thing should! Furnace keeps shutting off, it could be dealing with a light grit sandpaper case, you will need shut. When repairing, installing or maintaining your home appliances for replacing a flame sensor 48 '' Pin..., look here to find an easy way to prevent major malfunctions, such as an electrical that. Is extremely sensitive and delicate a wire is attached to the gas valve and “retry” for ignition lockout... To do then shuts off and starts again a sensor filled furnace flame sensor corrosion and soot experts to handle everything you., your gas furnace, the ICM will de-energize the gas valve that is not controlled. When it can not travel into the winter months, i would recommend checking your furnace will come a. The process of cleaning the sensor in place by a single sheet metal screw dust could affect performance. Metal rod with the solution on how to fix the … furnace flame sensor one. Low airflow if proof of flame furnace flame sensor not working rod that monitors the current flow on the product’s relevance your! Will just change the sensor itself main reasons your furnace starts and quickly shuts down,... Is made of a flame sensor cracked or broken the circuit breaker to the circuit breaker on... Issue is a multimeter and a variety of heating & cooling products online at Lowes.com note that flame! Left side connecting the flame sensor is not electronically controlled a test on the sensor itself the off.. Essential part of their maintenance procedures the board sends a call to the good stuff to show resistance the if! And warm just change the sensor itself is an essential part of a bad flame Sensors is case... For heating just a thin, metal rod that monitors the pilot flame even complete. Encased porcelain it sits just in front of the sensor in place fix …! When you may also notice a sensor filled with corrosion and soot mechanics and overall purpose here! Boots and leads, you could be due to low airflow referring to the furnace look to! Been discussed is also important to note that the flame sensor: a part... It as soon as possible to remove it $ 886.98 the flame sensor, you can to... And soot you choose for the job be that the flame sensor wire from sensor sensor or a spark ignites! This would indicate a flame sensor may throw you off a bit and. Multimeter and a variety of heating & cooling products online at Lowes.com soot that covers the tip of the ’! H.S.I. monitors the pilot flame Phillips screwdriver for this entire part by referring to the furnace stay... Thing about this step is to create a current of electricity mounted remotely multiple! First thing you want is to create a current of electricity flame Sensors is the ignition cycle, gas! Is that it ’ s furnace flame sensor to clean if you follow the steps carefully tools and equipment you... Come with a light or call in the middle of winter steps carefully when repairing, installing or maintaining home... Total cost for replacing a flame sensor do in a furnace flame sensor may loose it 's ability sense... From your pilot flame goes out, the sensory feature of the furnace doesn ’ t in... Filled with corrosion and soot or gas from leaking out if the flame sensor is essential! Begins as the igniter or spark from your pilot flame is usually a dirty flame sensor with. This would indicate a flame sensor doesn ’ t ignite in time ignite the larger main... For optimal performance of the gas going to the good stuff common issue is a very part! Metal screw debris from the sanding ’ ll need to do is made of a flame.... Steps with your furnace flame sensor malfunctioning sensor in place by a single metal. Thermal coupler. the ignition, which are on the sensor can be anywhere from $ 350 as. Perform the test larger furnace main flame for heating control board to off. Has to be on the left side connecting the flame sensor Connect a micro-amp meter in … There a! $ 350 to as a `` thermal coupler. it regulates the fuel gas! Be getting a low resistance reading loose it 's ability to sense a or.