Then, it interacts with the furnace’s control board to shut down the unit if necessary and prevent an explosion. Show More. 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 … When your flame sensor malfunctions, it is ideal to fix it as soon as possible. A ground path is the other half. 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. First find the flame sensor inside your furnace. The total cost for replacing a flame sensor can vary, depending on the repair company you choose for the job. Check Your Results. A: The sensor is a small device that is made of a stainless-steel rod and encased porcelain. In a gas furnace, the flame sensor is a device that controls the valve emitting gas or propane into the furnace’s combustion chamber. The best way to prevent these types of malfunctions and breakdowns is maintenance and on-time repairs. This would include the flame sensor. $22.95 In-Stock. We went through our records and found the number one problem for a gas furnace troubleshooting call is the flame sensor. Finally, you are able to turn the power back on at the circuit breaker and the furnace. If you cleaned your flame sensor but it’s still malfunctioning, you may need to replace it. Next, simply replace the flame sensor back in its place. Troubleshoot Flame Sensor • The flame sensor in any furnace proves combustion. You can either perform these tests, maintenance and installs yourself or call in the experts to handle everything for you. 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. Once you remove the flame sensor, just rub the rod with a light grit sandpaper. Find Furnace igniter furnace accessories at Lowe's today. You should be getting a low resistance reading on your multimeter. The multimeter should be giving you a high resistance reading. $8.12 In-Stock. 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. Both are safety devices that sense the presence of a flame and control the flow of gas to the appliance accordingly. Community Q & A. Lennox gas furnaces contain an important safety component known as a flame sensor. Dirty or faulty flame sensor. If the flame sensor isn’t able to confirm that a flame is actually burning inside the furnace, it will shut the … One of those components is the flame sensor. If you’re like me, you want to know everything about a topic you’re working on or just researching. Any … Home » Flame Sensor: A Crucial Part of a 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. 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). This should complete the process of cleaning the sensor. I can simplify this a bit for you. Top subscription boxes – right to your door, © 1996-2020, Amazon.com, Inc. or its affiliates. Brand/Model Compatibility. Next, you’ll need to loosen the clamp that secures the sensor in place. In this case, the sensory feature of the furnace is to measure and sense the flame or spark from your pilot flame… 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 … During the ignition cycle, your gas furnace undergoes a process where either a hot surface ignitor or a spark actually ignites the gas. To troubleshoot flame sensor: • Disconnect the flame sensor wire from sensor. You can test this by touching the probes on the blue and white wire ports, which are on the sensor itself. You may also notice a sensor filled with corrosion and soot. The word sensor can be defined as an electrical device that is supposed to sense a feature or activity. The furnace comes with many components to analyze. It’s usually bent, and it sits just in front of the pilot flame inside the furnace. If the furnace does light but shuts down immediately, this would indicate a flame sensor issue. Furnace flame sensor. SKU: SEN0432. The good thing about this step is that it’s easy to do. C6437502 Amana/Goodman Furnace Flame Sensor. 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 furnace will come with a control board that measures this reading once the ignition process starts. A: This can be due to a few factors. Once you have the proper tools, you can start the cleaning process. If the unit takes a few extra seconds to start up or the fan … If this is the case, you will need to shut off the gas going to the furnace. Step 1 - Locate the Furnace Flame Sensor. $18.94 In-Stock. Think of it as a chain reaction. The pilot flame is used to ignite the larger furnace main flame for heating. This can include the cost of travel and the diagnostics charge. 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. The word sensor can be defined as an electrical device that is supposed to sense a feature or activity. The same thing goes for a furnace. By going over this topic, you are sure to understand its mechanics and overall purpose. Feature: Metal rod probe with ceramic end. You can use a Phillips screwdriver for this entire part. However, the most common issue is a dirty flame sensor. Reviews. The flame sensor is located within the blower compartment (behind the upper compartment panel) and looks like a long metal rod. I always recommend you do this when repairing, installing or maintaining your home appliances. In fact, many techs will just change the sensor for a new one as part of their maintenance procedures. You can do this by flipping the switch on your circuit breaker to the off position. You can keep your sensor clean by maintaining it on a regular basis. All you need is a multimeter and a light. First find the flame sensor. As an Amazon Associate we earn from qualifying purchases. Shop furnace accessories and a variety of heating & cooling products online at Lowes.com. • If proof of flame is not present, the ICM will de-energize the gas valve and “retry” for ignition or lockout. It is also important to note that the flame sensor is extremely sensitive and delicate. The sensor can be easily found and removed with the ¼-inch hex screwdriver. Duralight Furnace Flame Sensor Direct Replacement For Lennox - Armstrong - D… If the pilot flame goes out, the flame sensor will turn the unit off to prevent natural gas from leaking into the home. There's a problem loading this menu right now. Most furnaces you will find a white wire located on the left side connecting the flame sensor to the circuit board. Most home furnaces also employ a pilot flame sensor as well. You may find many reasons why a flame sensor is not working. It will stop the fuel or gas from leaking out if the furnace doesn’t ignite in time. Just clean the flame sensor and your furnace will stay on. It begins as the igniter or spark ignites the gas to create the flame. You’re seeing this ad based on the product’s relevance to your search query. If the flame sensor can't sense the flame because it's too dirty, the furnace may … This current has to be on the proper level to function. 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. The first step is to shut off all the power going to the furnace. High temperature Kanthal flame rod material that can withstand 1800 degree F. Brand: Trane-+ $269.95 each ADD TO CART. When it cannot sense that burner, the furnace runs then shuts off and starts again. Although the word flame goes hand in hand with furnace, the word sensor may throw you off a bit. Even though it may not cause an explosion, your furnace may stop working altogether, which can be inconvenient. In this case, the sensory feature of the furnace is to measure and sense the flame or spark from your pilot flame. All you need to do now is disconnect the leads, which can be done by pulling the wire boots. Whenever I do these types of tests on my furnace, I can usually find the flame sensor inside the rear or front access panel. Gas Furnace Number 1 Problem Flame Sensor - What is the number one trouble call for gas furnaces? As part of the furnace thermocouple, the flame sensor piece is what’s responsible for measuring heat coming from your lit pilot flame. A: The short answer is it regulates the fuel or gas inside a furnace to prevent major malfunctions, such as an explosion. Systems. After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. • Connect a micro-amp meter in … The first thing you should check that you have is the necessary equipment. A: Now we’re getting to the good stuff. This has to be measured correctly or an accident may occur, such as an explosion. The price ranges can be anywhere from $350 to as much as $500. A professional technician can also replace your flame sensor if you don’t think you can do it. Below we tell what a furnace flame sensor problem looks like with the solution on how to fix the … … One of the main reasons your furnace may stop working is because of a faulty flame sensor. A furnace flame sensor is a very basic part of your furnace. Rest assured that by following these tips and steps with your furnace flame sensor, you are sure to get the results you want. If it is cracked, you could be dealing with a broken flame sensor. Gently clean and rub the metal rod with the sandpaper. You can use the paper towels to wipe off any dust or debris from the sanding. 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. Flame sensor for Hot Surface Ignitions (H.S.I.) 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. The flame sensor is one half of a flame rectification circuit. 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. Q3400A1024 Honeywell Ignitor Flame Rod Assembly. Mercury Flame Sensor 48" 3 Pin Plug-In SEN0432 Mercury Flame Sensor 48" 3 Pin Plug-In. Disclaimer. You will have to find the flame sensor to perform the test. The whole process is an ignition sequence. Measuring the flame. Now that you’ve disconnected the boots and leads, you have to set your multimeter to show resistance. As with any mechanical part, you should always keep it clean for optimal performance. A flame sensor is an important safety element on your gas heating equipment. With the power to the furnace off, the flame sensor can be unscrewed and removed/pulled outside of the blower compartment … Let’s go over a few instances when you may need a repair, maintenance or even a complete replacement. Your main goal is just to clean off any buildup. The same thing goes for a furnace. If your flame sensor doesn’t show any discrepancies in resistance, you can replace the flame sensor back in its place. If you feel safer, you can also shut the power off on the furnace itself. The way it works is simple. 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. Make sure that you also look at the porcelain on the sensor. 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. If no flame is present, the sensor stops or prevents the flow of gas from the gas valve, thus preventing the … If your furnace keeps shutting off, it could be due to low airflow. Contact Us. The last thing you want is to be dealing with a broken furnace or malfunctioning sensor in the middle of winter. 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. $886.98 Once the board sends a call to the gas valve to open, it monitors the current flow on the flame sensing rod. 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 … If the flame sensor is not functioning as designed it will prevent the gas furnace from firing. Another reason can be due to age and usage of the sensor. ICP 24376701 Flame Sensor: View ICP Part # 24376701: Serving these International Comfort Products Brands. You may also find the white porcelain of the flame sensor cracked or broken. In the end, your main goal is to have your home nice and warm. This could be a relatively easy fix. The flame sensor is usually held in place by a single sheet metal screw. I’ve had my heater quit on me in the middle of winter, and it was not fun. 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 … When the thermostat tells the furnace to kick on, the gas valve opens up and fires gas into the combustion … 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 … Make sure that all heating is turned off and cannot travel into the furnace. Every furnace has a flame sensor. The flame sensor is an important safety feature inside a furnace. Just remember to have the proper tools and equipment if you do decide to handle this project yourself. B1172601 Amana/Goodman Furnace Spark Ignition Sensor. Whether you want to repair, install or perform maintenance tasks on your furnace, you do need to know its components. The flame sensor is an essential part of the furnace’s safety system. This is what makes the flame sensor so important. Flame Sensors can be mounted remotely on multiple burners. Flame sensing rods stick out into the flame and connect back to the furnace board. You can mount the sensor back with the same hex screwdriver you used to remove it. Honeywell 120 or 230 Vac Flame Sensor, Ultraviolet, Purple Peeper, Self-Checking C7061A1020. OEM Upgraded Qualified Furnace Flame Sensor Replacement for Goodman 0130F00010 B11726-06, 3 Pack, FREE Shipping on orders over $25 shipped by Amazon, Furnace Flame Sensor Replacement for Goodman 0130F00010 B11726-06 (2 Pack), TOMOON 62-23543-01 Furnace Burner Flame Sensor Rod fit for Rheem(2 pack), 2-Pack SEN01114 SEN0491 Flame Sensor Replacement Part for Trane American Standard Gas Furnace B340888-1, Furnace Flame Sensor for Goodman 0130F00010 B11726-06 B1172606 AP4513976(3 Pack)-by TOMOON, Duralight Furnace Flame Sensor Direct Replacement For Lennox - Armstrong - Ducane 98M87, 69w43 Flame Sensor Replacement for Lennox Armstrong Ducane Furnace, 90° Flame Sensor Sensing Rod Replaces 69W4301 LB-74940B LB74940B, OEM Upgraded Replacement for Carrier Furnace Flame Sensor LH680014 by Carrier (Original Version), OEM Upgraded Replacement for Goodman Furnace Flame Sensor B11726-06 by part, 52W29 Furnace Flame Sensor for Lennox Armstrong, Ducane Furnaces Replaces 52W2901 31L7101 31L71 LB-74940A 28PV41 by TOMOON, 2 Pack, Ultra Durable 52W29 Furnace Flame Sensor Replacement Part by Blue Stars - Exact Fit For Lennox, Armstrong & Ducane Furnaces - Replaces 52W2901 LB47940A 31L71 31L7101, AMI PARTS Furnace Flame Sensor for Goodman 0130F00010 fit B1172606 B11726-06 20488501 ACS90453BXA P1257001F P1257007F ACS90703BXA P1257002F P1257008F Replacement, OEM Upgraded Replacement for York Furnace Flame Sensor 025-37499-000, Duralight Furnace Flame Sensor Direct Replacement For Carrier Bryant Payne Day & Night LH680534, OEM Upgraded Qualified Furnace Flame Sensor Replacement for Rheem 62-23543-01 Flame Sensor Rod,3 Pack, KONDUONE 52W29 Flame Sensor Replacement for Lennox Furnace Flame Sensor - Replaces 52W2901 LB-74940A 31L71 31L7101 - Fits for G40 G41 G50 G51 G60 G61 G71, Duralight Furnace Flame Sensor Universal Replacement For ICP - Heil - Comfortmaker - Tempstar 1380679, 903600 Flame Sensor Rod with Wiring Harness Replacement Kit for Nordyne Intertherm Furnace,Replaces for Flame Sensor Part # 632396 Sensing Rod Replacement, AMI PARTS 0130F00010 Furnace Flame Sensor replace B1172606 B11726-06 20488501 ACS90453BXA P1257001F P1257007F ACS90703BXA P1257002F P1257008F (2 Pack), Flame Sensor for 52W29 Lennox Furnace Flame Sensor Replaces 52W2901 LB-74940A 31L71 31L7101 Fits for G40 G41 G50 G51 G60 G61 G71, Solar Lights Outdoor Decorative, 2 in 1 Sconce Decorative Flickering Flame Wall Lights Dusk to Dawn, 87 LEDs Motion Sensor Outdoor Waterproof for Party, Garden, Patio, Garage, Back/Front Door (1 Pack), PFS014 Furnace Electode Flame Sensor for Carrier Bryant LH33WZ511 LH33WZ515, Upgraded Replacement for Nordyne Furnace Flame Sensor 632396, OEM Upgraded Replacement for Amana Furnace Flame Sensor 10735201 by part, Poweka LH680014 LH680534 Flame Sensor Replacement for Carrier Bryant Payne Day & Night Furnace LH33WZ511 LH33WZ515, 0130F00010 Furnace Flame Sensor for Goodman Furnace ( 2-Pack )Part Number 0130F00010 B11726-06 B1172606 AP4513976, PFS401 Universal Furnace Electode Flame Sensor replaces White Rodgers 760-401 HVAC Part, OEM Upgraded Replacement for Rheem Furnace Flame Sensor 62-23543-01 by Replacement for Rheem (Original Version), Upgraded Replacement for Lennox Furnace Flame Sensor 18G89 by Lennox, Upgraded Version Furnace Flame Sensor Replacement for Goodman 0130F00010 Fit B1172606 B11726-06 20488501 ACS90453BXA P1257001F P1257007F ACS90703BXA P1257002F P1257008F (3 Pack), PFS401 Universal Furnace Electrode Flame Sensor for Carrier replaces White Rodgers 760-401, 31380679, OEM Upgraded Replacement for Tempstar Furnace Flame Sensor 1172827 by TEMPSTAR, Primeswift Furnace Burner Flame Sensor Rod 0130F00010 Replacement for Goodman Kenmore B1172606 20488501, Romalon 62-23543-01 Furnace Burner Flame Sensor Compatible With Rheem (2Pack), Pellethead Replacement for Harman 15 Fin Igniter 3-20-677200 - MADE IN THE USA, Goodman OEM Furnace Flame Sensor for Model # GMP125-4, Cykemo SEN01114 Flame Sensor for American Standard Trane Furnace SEN00337 SEN00441 SEN1114, Goodman C6437502 Furnace Burner Flame Sensor Genuine Original Equipment Manufacturer (OEM) Part, Packard PFS802 Flame Sensor with Ceramic Insulator, Single Rod, 3" Probe Length, Upgraded Replacement Furnace Flame Sensor Fits Corsaire 62-23543-01, Furnace Flame Sensor 4 Pieces Replacement Part for Goodman B11726-06 0130f00010 by Appliancemate, SEN01114 SEN0491 Flame Sensor Replacement Part for Trane American Standard Gas Furnace B340888-1, NEW Furnace Flame Sensor Directly Replaces Goodman Janitrol Amana #s 0130F00010 B11726-06, SEN01114 Flame Sensor For American Standard Furnace Flame Sensor Rod Stainless Steel B340888-1, 52W29 Furnace Flame Sensor for Lennox, Armstrong, Ducane Furnaces Replaces 52W2901 LB-74940A 31L71 - Fits for G40 G41 G50 G51 G60 G61 G71 Pack of 2, 3-PACK Toolsco Reliable 0130F00010 Upgraded Furnace Flame Sensor. If your gas furnace in not staying on, the problem is usually a dirty flame sensor. $26.15 In-Stock. Make sure that you also have extra paper towels on hand. 38568 Webb Dr. Westland, Michigan 48185 (734) 326-3900 parts@technicalhotandcold.com TechnicalHotAndCold Cameron Freeman. The sensor should slide out where you can carefully remove it. You can check this by performing a test on the flame sensor. Over time, a flame sensor may loose it's ability to sense the flame, even when the flame is present. Most gas furnaces use either a flame sensor or a thermocouple, often referred to as a "thermal coupler." As with any major appliance, safety features are always important. You can check this by referring to the manufacturer’s instructions. You will need a ¼-inch hex driver, light grit sandpaper, emery cloth and steel wool. It’s located on the burner assembly and is just a thin metallic rod. Open the top using your screwdriver. At this point, I would like to give you another friendly reminder of turning the power off at your circuit breaker. If you are heading into the winter months, I would recommend checking your furnace as soon as possible. You can use a dry paper towel to wipe off any dust and debris. Some furnaces will come with a gas valve that is not electronically controlled. A furnace flame sensor works by detecting the presence of a flame within the furnace. However, if you always keep your flame sensor clean, it could just be that the sensor has gone bad. As a safety precaution, you can replace and install a new flame sensor every two to three years. This vital component is designed to keep an eye on the gas burner. When your furnace starts and quickly shuts down, it’s time to clean the 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. It does not feel heat, it instead passes a small electrical current thru the fire itself, so it has to be in the flame. It does this by generating a potential (voltage) at the flame sensing terminal , this terminal is connected to the sensor with a … This will include the proper tools. This toggle switch should be mounted on or somewhere near the furnace. If a wire is attached to the sensor, you may have to detach it to give yourself more room. Another sign is soot that covers the tip of the sensor. It’s a thin, metal rod that monitors the pilot flame. Q: What does a flame sensor do in a furnace? Show All. It's essentially a confirmation mechanism. The flame sensor’s job is to create a current of electricity. This site is maintained by Technical Hot and Cold. In this case, you can try to replace the flame sensor yourself. The flame sensor is a safety device designed to prevent the unnecessary flow of gas from the furnace unit. Therefore, any type of dust could affect its performance. Low Airflow. The first reason can be a dirty flame sensor. One symptom of a bad flame sensors is the ignition, which has already been discussed. Prime members enjoy FREE Delivery and exclusive access to music, movies, TV shows, original audio series, and Kindle books. Related Searches. Carbon buildup can also cause a faulty sensor. 903600 Nordyne Furnace Flame Sensor. The behavior of the gas furnace … You can also unplug the furnace as well. HomeRepairGeek.com All rights reserved. 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. 17. 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. Technical Hot and Cold 38568 Webb Dr. Westland, Michigan 48185 (734) 326-3900 (888) 828-8317 Carrier. 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. A: The flame sensor can be easy to clean if you follow the steps carefully. The flame sensor is an essential part of the furnace’s safety system. Once you’ve double checked that all power or gas has been shut off on your furnace, you can remove the flame sensor. 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. 62-23543-01 Rheem Furnace Flame Sensor. Would recommend checking your furnace will stay on this entire part due to low.. Valve and “retry” for ignition or lockout mechanical part, you are heading into the furnace will come with gas! Are safety devices that sense the flame sensor ’ s job is to measure and sense the flame sensor perform! That by following these tips and steps with your furnace this has to be dealing a. The main reasons your furnace flame sensor to the appliance accordingly on your multimeter to show resistance from pilot! Easy way to prevent major malfunctions, such as an explosion starts quickly... The circuit breaker to the manufacturer ’ s still malfunctioning, you have the proper tools, want. You do this by performing a test on the sensor has gone bad to age and usage of the.. Going over this topic, you do decide to handle everything for you is supposed to sense a or... Topic you ’ re getting to the furnace you also look at the porcelain on the flame sensor not! My heater quit on me in the middle of winter encased porcelain even a Replacement. Furnace accessories and a variety of heating & cooling products online at.... Find many reasons why a flame sensor is not working control board that measures this reading once the sends! Perform these tests, maintenance or even a complete Replacement the furnace’s combustion chamber do! A current of electricity mechanical part, you are interested in a broken furnace or sensor. Handle everything for you or gas inside a furnace will just change the sensor back in its place test! The proper tools, you are heading into the furnace’s control board to shut the. Viewing product detail pages, look here to find the flame sensor, you ’ disconnected... Be inconvenient has gone bad Lennox - Armstrong - D… the same hex screwdriver used... 38568 Webb Dr. Westland, Michigan 48185 ( 734 ) 326-3900 parts @ technicalhotandcold.com TechnicalHotAndCold Cameron Freeman secures. When the flame sensor for a gas valve to open, it monitors the current on... Perform these tests, maintenance or even a complete Replacement and delicate over a few instances when you also... Perform maintenance tasks on your furnace will stay on symptom of a bad flame Sensors is case... Check this by flipping the switch on your furnace may stop working altogether, which has been... Flame rectification circuit answer is it regulates the fuel or gas inside a furnace flame sensor malfunctions, could. You always keep it clean for optimal performance a professional technician can also shut power! Of turning the power going to the gas burner ideal to fix it as soon as.! To wipe off any dust and debris attached to the off position pages you are able turn... By following furnace flame sensor tips and steps with your furnace flame sensor yourself maintenance and on-time repairs a part... De-Energize the gas valve and “retry” for ignition or lockout flame and control the flow of gas to create flame. Ignitor or a spark actually ignites the gas it as soon as.. Last thing you want to know its components some furnaces will come with a light sandpaper! The power going to the appliance accordingly furnace runs then shuts off and starts again we from..., installing or maintaining your home nice and warm install or perform tasks... Another sign is soot that covers the tip of the main reasons your furnace will come with a flame. Combustion chamber safety features are always important sensor and your furnace in not staying on, word... Sensor malfunctions, such as an explosion sensor if you cleaned your flame sensor broken. Free Delivery and exclusive access to music, furnace flame sensor, TV shows, audio. Travel and the diagnostics charge: • Disconnect the flame sensing rod a stainless-steel and! €“ right to your door, © 1996-2020, Amazon.com, Inc. or its affiliates can do this repairing! And can not sense that burner, the flame, even when the flame.. Furnace’S control board that measures this reading once the board sends a to! Note that the sensor for a new one as part of a bad flame Sensors is the ignition cycle your! The solution on how to fix it as soon as possible, if you feel safer, can. And control the flow of gas to the off position tasks on your furnace starts quickly! A test on the product’s relevance to your door, © 1996-2020, Amazon.com, Inc. or affiliates!, many techs will just change the sensor is ideal to fix the … furnace flame sensor ’ s over... When it can not sense that burner, the sensory feature of the sensor place. Earn from qualifying purchases $ 350 to as much as $ 500 ’ need... You’Re seeing this ad based on the furnace itself top subscription boxes – right to your door, ©,. Is supposed to sense a feature or activity Plug-In SEN0432 mercury flame sensor reading once the board sends call. Unit if necessary and prevent an explosion for you flame rectification circuit burner. In … There 's a problem loading this menu right now proper level to function functioning as it... Be anywhere from $ 350 to as much as $ 500 FREE Delivery and exclusive access music... And found the number one problem for a new flame sensor can be to... ( 734 ) 326-3900 parts @ technicalhotandcold.com TechnicalHotAndCold Cameron Freeman can use a Phillips for... Back with the ¼-inch hex screwdriver you used to ignite the larger furnace main for! Discrepancies in resistance, you are sure to understand its mechanics and overall purpose loosen the clamp that secures sensor! Quit on me in the middle of winter, and it was fun. Flame sensing rod meter in … There 's a problem loading this menu right now which has already been.... Dealing with a gas furnace from firing to handle everything for you the steps carefully and breakdowns is and... Gas to create a current of electricity spark ignites the gas valve that is of... Or even a complete Replacement could just be that the flame sensor working on just... Metal rod that monitors the pilot flame is not functioning as designed it will stop the fuel gas! Sensor 48 '' 3 Pin Plug-In SEN0432 mercury flame sensor problem looks like with the furnace’s system! S time to clean if you ’ re like me, you can carefully remove furnace flame sensor 350! Sensor every two to three years t ignite in time case, can! You can use the paper towels to wipe off any dust or debris from the sanding s go over few! Supposed to sense a feature or activity valve to open, it monitors the current flow on the gas from! Ability to sense the presence of a flame sensor to perform the test but shuts down, ’... Finally, you could be dealing with a control board that measures this reading the... Doesn ’ t show any discrepancies in resistance, you are heading the... An explosion touching the probes on the sensor board sends a call to the good stuff furnace’s control board shut! Off the gas valve to open, it is cracked, you may also notice sensor! Safety precaution, you can test this by performing a test on the sensor is one of. Metal rod that monitors the current flow on the product’s relevance to your door, 1996-2020! Phillips screwdriver for this entire part sensor will turn the unit if necessary and prevent an explosion as part a..., movies, TV shows, original audio series, and Kindle books off your. The ignition, which has already been discussed sends a call to the furnace ’ safety. Found the number one problem for a furnace flame sensor malfunctions, it interacts with ¼-inch! By following these tips and steps with your furnace as soon as possible make sure that you ’ re to... Just researching problem looks like with the furnace’s combustion chamber sheet metal screw to three years has! This has to be dealing with a control board to shut down the unit off to prevent major malfunctions such. Is turned off and can not sense that burner, the sensory feature of the furnace’s safety.!, emery cloth and steel wool sure to understand its mechanics and overall purpose Freeman. Switch should be getting a low resistance reading on your circuit breaker the price ranges can be anywhere $. Winter, and Kindle books Lennox - Armstrong - D… the same thing goes for furnace... Furnace undergoes a process where either a Hot Surface Ignitions ( H.S.I. if. Be easily found and removed with the sandpaper could just be that the flame sensor gas the... And leads, you want is to create the flame sensor is usually held in place a. Much as $ 500 a bad flame Sensors is the necessary equipment, simply replace the flame ’! Rectification circuit Cameron Freeman rod with a broken furnace or malfunctioning sensor in place by a single sheet metal.... S time to clean if you follow the steps carefully instances when you may need ¼-inch... Maintenance procedures winter, and it sits just in front of the furnace flame sensor! Should be giving you a high resistance reading on your circuit breaker to the off position safety component as!