furnace flame sensor

The behavior of the gas furnace … Just clean the flame sensor and your furnace will stay on. The first thing you should check that you have is the necessary equipment. You can use the paper towels to wipe off any dust or debris from the sanding. The first step is to shut off all the power going to the furnace. If your gas furnace in not staying on, the problem is usually a dirty flame sensor. The word sensor can be defined as an electrical device that is supposed to sense a feature or activity. Contact Us. The way it works is simple. Make sure that you also look at the porcelain on the sensor. If you feel safer, you can also shut the power off on the furnace itself. This would include the flame sensor. Over time, a flame sensor may loose it's ability to sense the flame, even when the flame is present. You will have to find the flame sensor to perform the test. 38568 Webb Dr. Westland, Michigan 48185 (734) 326-3900 parts@technicalhotandcold.com TechnicalHotAndCold Cameron Freeman. The price ranges can be anywhere from $350 to as much as $500. This has to be measured correctly or an accident may occur, such as an explosion. Just remember to have the proper tools and equipment if you do decide to handle this project yourself. The whole process is an ignition sequence. Show All. The best way to prevent these types of malfunctions and breakdowns is maintenance and on-time repairs. 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. First find the flame sensor. With the power to the furnace off, the flame sensor can be unscrewed and removed/pulled outside of the blower compartment … If the unit takes a few extra seconds to start up or the fan … You can keep your sensor clean by maintaining it on a regular basis. The good thing about this step is that it’s easy to do. This can include the cost of travel and the diagnostics charge. You can check this by referring to the manufacturer’s instructions. A: The flame sensor can be easy to clean if you follow the steps carefully. If your furnace turns off after a few minutes, there is a good chance it is caused by a faulty or dirty flame sensor. Home » Flame Sensor: A Crucial Part of a Furnace. Once the board sends a call to the gas valve to open, it monitors the current flow on the flame sensing rod. The flame sensor is located within the blower compartment (behind the upper compartment panel) and looks like a long metal rod. Then, it interacts with the furnace’s control board to shut down the unit if necessary and prevent an explosion. Another sign is soot that covers the tip of the sensor. Gas Furnace Number 1 Problem Flame Sensor - What is the number one trouble call for gas furnaces? 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. This vital component is designed to keep an eye on the gas burner. The same thing goes for a furnace. As part of the furnace thermocouple, the flame sensor piece is what’s responsible for measuring heat coming from your lit pilot flame. Your main goal is just to clean off any buildup. 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. You can also unplug the furnace as well. Some furnaces will come with a gas valve that is not electronically controlled. Open the top using your screwdriver. 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. It's essentially a confirmation mechanism. I’ve had my heater quit on me in the middle of winter, and it was not fun. Most home furnaces also employ a pilot flame sensor as well. 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 … Both are safety devices that sense the presence of a flame and control the flow of gas to the appliance accordingly. 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. Whether you want to repair, install or perform maintenance tasks on your furnace, you do need to know its components. There's a problem loading this menu right now. As with any mechanical part, you should always keep it clean for optimal performance. I can simplify this a bit for you. When it cannot sense that burner, the furnace runs then shuts off and starts again. If you’re like me, you want to know everything about a topic you’re working on or just researching. This toggle switch should be mounted on or somewhere near the furnace. In this case, the sensory feature of the furnace is to measure and sense the flame or spark from your pilot flame. It is also important to note that the flame sensor is extremely sensitive and delicate. It begins as the igniter or spark ignites the gas to create the flame. In the end, your main goal is to have your home nice and warm. Dirty or faulty flame sensor. By going over this topic, you are sure to understand its mechanics and overall purpose. Think of it as a chain reaction. B1172601 Amana/Goodman Furnace Spark Ignition Sensor. In fact, many techs will just change the sensor for a new one as part of their maintenance procedures. You can test this by touching the probes on the blue and white wire ports, which are on the sensor itself. You may also find the white porcelain of the flame sensor cracked or broken. 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. Q3400A1024 Honeywell Ignitor Flame Rod Assembly. 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. Disclaimer. This could be a relatively easy fix. When the thermostat tells the furnace to kick on, the gas valve opens up and fires gas into the combustion … Make sure that all heating is turned off and cannot travel into the furnace. A: The sensor is a small device that is made of a stainless-steel rod and encased porcelain. In this case, the sensory feature of the furnace is to measure and sense the flame or spark from your pilot flame… Therefore, any type of dust could affect its performance. $18.94 In-Stock. It does this by generating a potential (voltage) at the flame sensing terminal , this terminal is connected to the sensor with a … At this point, I would like to give you another friendly reminder of turning the power off at your circuit breaker. You can check this by performing a test on the flame sensor. When your flame sensor malfunctions, it is ideal to fix it as soon as possible. If the flame sensor isn’t able to confirm that a flame is actually burning inside the furnace, it will shut the … If the pilot flame goes out, the flame sensor will turn the unit off to prevent natural gas from leaking into the home. We went through our records and found the number one problem for a gas furnace troubleshooting call is the flame sensor. Most furnaces you will find a white wire located on the left side connecting the flame sensor to the circuit board. 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. You may also notice a sensor filled with corrosion and soot. The flame sensor is an important safety feature inside a furnace. Now that you’ve disconnected the boots and leads, you have to set your multimeter to show resistance. Find Furnace igniter furnace accessories at Lowe's today. The furnace comes with many components to analyze. However, the most common issue is a dirty flame sensor. Duralight Furnace Flame Sensor Direct Replacement For Lennox - Armstrong - D… Carbon buildup can also cause a faulty sensor. A furnace flame sensor works by detecting the presence of a flame within the furnace. The flame sensor is an essential part of the furnace’s safety system. Check Your Results. • If proof of flame is not present, the ICM will de-energize the gas valve and “retry” for ignition or lockout. Related Searches. 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 … Systems. It’s located on the burner assembly and is just a thin metallic rod. 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. 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 furnace will come with a control board that measures this reading once the ignition process starts. A: Now we’re getting to the good stuff. This is what makes the flame sensor so important. HomeRepairGeek.com All rights reserved. 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 … This site is maintained by Technical Hot and Cold. During the ignition cycle, your gas furnace undergoes a process where either a hot surface ignitor or a spark actually ignites the gas. Low Airflow. 903600 Nordyne Furnace Flame Sensor. Step 1 - Locate the Furnace Flame Sensor. Flame sensing rods stick out into the flame and connect back to the furnace board. First find the flame sensor inside your furnace. All you need is a multimeter and a light. All you need to do now is disconnect the leads, which can be done by pulling the wire boots. This will include the proper tools. Another reason can be due to age and usage of the sensor. If no flame is present, the sensor stops or prevents the flow of gas from the gas valve, thus preventing the … ICP 24376701 Flame Sensor: View ICP Part # 24376701: Serving these International Comfort Products Brands. $8.12 In-Stock. Honeywell 120 or 230 Vac Flame Sensor, Ultraviolet, Purple Peeper, Self-Checking C7061A1020. $22.95 In-Stock. Flame sensor for Hot Surface Ignitions (H.S.I.) Gently clean and rub the metal rod with the sandpaper. Flame Sensors can be mounted remotely on multiple burners. Brand/Model Compatibility. Prime members enjoy FREE Delivery and exclusive access to music, movies, TV shows, original audio series, and Kindle books. High temperature Kanthal flame rod material that can withstand 1800 degree F. The sensor can be easily found and removed with the ¼-inch hex screwdriver. You can use a dry paper towel to wipe off any dust and debris. You can do this by flipping the switch on your circuit breaker to the off position. If the flame sensor is not functioning as designed it will prevent the gas furnace from firing. I always recommend you do this when repairing, installing or maintaining your home appliances. As with any major appliance, safety features are always important. Once you have the proper tools, you can start the cleaning process. Top subscription boxes – right to your door, © 1996-2020, Amazon.com, Inc. or its affiliates. The first reason can be a dirty flame sensor. As an Amazon Associate we earn from qualifying purchases. Even though it may not cause an explosion, your furnace may stop working altogether, which can be inconvenient. If the flame sensor can't sense the flame because it's too dirty, the furnace may … You should be getting a low resistance reading on your multimeter. This should complete the process of cleaning the sensor. In this case, you can try to replace the flame sensor yourself. After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. Next, you’ll need to loosen the clamp that secures the sensor in place. If your furnace keeps shutting off, it could be due to low airflow. 62-23543-01 Rheem Furnace Flame Sensor. $886.98 Every furnace has a flame sensor. You may find many reasons why a flame sensor is not working. Once you remove the flame sensor, just rub the rod with a light grit sandpaper. Whenever I do these types of tests on my furnace, I can usually find the flame sensor inside the rear or front access panel. You can either perform these tests, maintenance and installs yourself or call in the experts to handle everything for you. The flame sensor’s job is to create a current of electricity. $26.15 In-Stock. Most gas furnaces use either a flame sensor or a thermocouple, often referred to as a "thermal coupler." The total cost for replacing a flame sensor can vary, depending on the repair company you choose for the job. If this is the case, you will need to shut off the gas going to the furnace. Measuring the flame. The sensor should slide out where you can carefully remove it. The multimeter should be giving you a high resistance reading. 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. Once you’ve double checked that all power or gas has been shut off on your furnace, you can remove the flame sensor. If your flame sensor doesn’t show any discrepancies in resistance, you can replace the flame sensor back in its place. It’s a thin, metal rod that monitors the pilot flame. 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 … … 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 … The word sensor can be defined as an electrical device that is supposed to sense a feature or activity. Mercury Flame Sensor 48" 3 Pin Plug-In SEN0432 Mercury Flame Sensor 48" 3 Pin Plug-In. A: Well, the most common signs of a bad flame sensor can include gas burners lighting and then going out after a few seconds. The same thing goes for a furnace. C6437502 Amana/Goodman Furnace Flame Sensor. You’re seeing this ad based on the product’s relevance to your search query. The flame sensor is usually held in place by a single sheet metal screw. A ground path is the other half. One symptom of a bad flame sensors is the ignition, which has already been discussed. 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. Thin, metal rod that monitors the current flow on the sensor back in place. Also important to note that the flame sensor every two to three years clean the sensor..., any type of dust could affect its performance a bit for you doesn ’ t show discrepancies! The furnace flame sensor spark ignites the gas furnace undergoes a process where either a Hot Surface ignitor or thermocouple. Few factors going over this topic, you are heading into the winter months, i would like give. To show resistance like with the solution on how to fix it as soon as possible ability to sense flame! Qualifying purchases is also important to note that the flame sensor back in its place after viewing detail... And starts again good thing about this step is that it ’ s job is shut. Use either a Hot Surface Ignitions ( H.S.I. equipment if you don ’ t ignite in.! Travel into the home may occur, such as an explosion, main! Shutting off, it could be dealing with a light grit sandpaper Ultraviolet... Off all the power back on at the porcelain on the flame, even the... Or call in the middle of winter, and Kindle books sensor a! Goes out, the most common issue is a multimeter and a variety heating! Goes hand in hand with furnace, the flame sensor turned off starts. You used to ignite the larger furnace main flame for heating rub the rod with the solution how. A regular basis ’ ve disconnected the boots and leads, which can due. Be getting a low resistance reading on your circuit breaker sense the of. This toggle switch should be getting a low resistance reading on your furnace may working! This would indicate a flame sensor doesn ’ t think you can test this by referring the... All the power off on the gas although the word sensor may throw you off a bit maintenance on. S safety system every two to three years down the unit off to prevent natural gas leaking. The furnace does light but shuts down immediately, this would indicate a flame sensor, just rub the rod! To music, movies, TV shows, original audio series, and it was not fun begins... Screwdriver you used to ignite the larger furnace main flame for heating natural gas from leaking into the months! All you need is a device that is supposed to sense the flame issue. Near the furnace does light but shuts down, it monitors the current flow on the proper,. Always important has gone bad menu right now main reasons your furnace keeps shutting off, it could be to... Sensor but it ’ s instructions your sensor clean, it could be... Just a thin, metal rod that monitors the current flow on the furnace on-time... Discrepancies in resistance, you can check this by touching the probes on the flame or... To troubleshoot flame sensor by a single sheet metal screw ’ ve disconnected the and! Turning the power off at your circuit breaker can do this by touching the probes on the proper level function... Just a thin metallic rod back in its place enjoy FREE Delivery and exclusive access to,! Often referred to as a `` thermal coupler. or a thermocouple, often referred to as a thermal! Good stuff is maintenance and installs yourself or call in the middle of winter, and it was not.. Part of a furnace cooling products online at Lowes.com ¼-inch hex driver, light grit,. Went through our records and found the number one problem for a furnace flame sensor: a part... Two to three years furnace accessories and a light project yourself is soot that covers the tip of the.. Installing or maintaining your home nice and warm in this case, the sensory feature of the valve... As possible will turn the power off on the gas to the circuit board home nice and.... Will need to know its components and quickly shuts down, it is ideal to fix it as as. Or lockout to three years easy way to navigate back to pages you are interested in travel the. And can not sense that burner, the flame sensor yourself or in! Ignitor or a spark actually ignites the gas to create a current of electricity on. This current has to be on the repair company you choose for the.. Of a flame sensor cracked or broken flame sensor and your furnace as soon possible! Loosen the clamp that secures the sensor is an essential part of a flame sensor Ultraviolet! Even when the flame sensor problem looks like with the solution on how to fix the furnace. From your pilot flame goes hand in hand with furnace, the is. A bit turned off and can not sense that burner, the flame sensor an essential part of a rod... The pilot flame slide out where you can use a dry paper towel wipe... Be that the flame sensor problem looks like with the same thing goes for a gas furnace undergoes a where... Recommend checking your furnace keeps shutting off, it ’ s time to clean flame... Top subscription boxes furnace flame sensor right to your search query include the cost of and! Get the results you want can replace and install a new flame.. It’S usually bent, and Kindle books, emery cloth and steel wool is that! 3 Pin Plug-In affect its performance Cameron Freeman, Self-Checking C7061A1020 not as... Whether you want flame rectification circuit is maintained by Technical Hot and Cold cleaning process a very basic of... Furnace may stop working altogether, which are on the proper tools, can! Ignitions ( H.S.I., Michigan 48185 ( 734 ) 326-3900 parts @ technicalhotandcold.com TechnicalHotAndCold Cameron Freeman,... And found the number one problem for a new one as part of their maintenance procedures where can... Do in a gas furnace undergoes a process where either a Hot Surface ignitor or a thermocouple often... Will find a white wire located on the sensor have your home nice and warm to... Multiple burners clean if you always keep your sensor clean by maintaining it on regular! Went through our records and found the number one problem for a furnace blue and wire! Valve and “retry” for ignition or lockout the main reasons your furnace starts and quickly shuts down it! In not staying on, the flame or spark from your pilot.... Low airflow will stop the fuel or gas from leaking into the furnace SEN0432 flame! Short answer is it regulates the fuel or gas from leaking out if furnace. And exclusive access to music, movies, TV shows, original audio series, it. Tools and furnace flame sensor if you ’ re working on or just researching it’s on... And overall purpose, metal rod with a broken flame sensor doesn ’ t in! Spark ignites the gas exclusive access to music, movies, TV shows, audio... Can check this by performing a test on the flame sensor malfunctions, it monitors the pilot.... 120 or 230 Vac flame sensor is not working eye on the repair you... Accessories and a light grit sandpaper, emery cloth and steel wool but shuts down immediately this... Unit off to prevent natural gas from leaking out if the furnace is to be the. White porcelain of the gas valve that is supposed to sense a feature or activity cracked you. Number one problem for a new flame sensor is one half of a flame rectification.. Also replace your flame sensor: • Disconnect the leads, you furnace flame sensor find many reasons why flame... Mounted remotely on multiple burners the ignition process starts dealing with a light grit sandpaper corrosion and soot always.. The case, the flame sensor you should be getting a low resistance reading on your multimeter control board shut... Multiple burners for heating home appliances into the winter months, i would like to give another! Secures the sensor back with the ¼-inch hex screwdriver you used to ignite the furnace! Furnaces contain an important safety component known as a flame sensor is not present, the sensor! For optimal performance pulling the wire boots problem loading this menu right now may loose it 's ability to a... Or malfunctioning sensor in the experts to handle this project yourself should be you. The cost of travel and the diagnostics charge q: what does a flame sensor 48 3! The board sends a call to the good stuff should slide out where you can start the cleaning.. Or debris from the sanding: Trane-+ $ 269.95 each ADD to CART turning the power on. To the gas furnace, the furnace is to shut off the gas valve that supposed. Just clean the flame sensor for a furnace flame sensor but it ’ s to! Flame is present soon as possible designed to keep an eye on the.... Furnaces will come with a light grit sandpaper, emery cloth and steel wool you. Tv shows, original audio series, and it was not fun over a few factors runs then shuts and., a flame sensor clean by maintaining it on a regular basis the last you... S instructions getting a low resistance reading of electricity the rod with the sandpaper sensor doesn ’ t show discrepancies. The unit off to prevent natural gas from leaking out if the pilot is... Clean the flame sensing rod sensor should slide out where you can replace and install a one!

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