Trane xv95 flame sensor

The fan starts but it doesn't blow any hot air, it just seems to blow air. This is our 2nd winter in this house with this furnace. It's a Trane XV95 2 stage blower, the model number is UHCB080A9V3VA. I did have problems with it in the summer due to one of the pipes being clogged and water ran down along the side on the wires.

Trane xv95 flame sensor. To test a flame sensor, follow these steps: Turn off the power to your furnace and open the access panel to the burners. Find the flame sensor. Somewhere in front of the burners is the flame sensor. The flame sensor is usually a short rod that sticks out in front of where the flame would be. Remove the flame sensor wire.

Call the gas company to resolve the issue. 2. Power Is Off or Breaker Tripped. Gas-fueled furnaces also require electricity to power mechanisms, like the blower motor, and in the case of high-efficiency furnaces, the electric ignition. If the furnace seems to be completely dead, make sure the power is on.

Replace Flame Sensor Trane XR 80 FurnaceTrane Sensor; Flame, Nikrothal 80 Material. This is a genuine OEM (Original Equipment Manufacturer) part. Use genuine OEM parts for safety reliability and performance. Trane offers a wide array of parts to repair your commercial HVAC units. Find the exact component and attachement you need for your furnace or AC unit.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 4.6 out of 5 stars 99Take caution - If you are performing any kind of gas furnace maintenance, turn off the gas line. The valve to turn off your gas line should be located near the gas meter. Look - Look at the flames in the burner. You should see a steady blue flame. If you see yellow or orange flicking, call a specialist to determine if something other than natural gas is burning.Usually almost always a dirty flame sensor that needs to be cleaned with sandpaper. ... I have a Trane XV95 Controlled by a Honeywell Thermostat. The thermostat indicates that it's running on Auxiliary Heat almost constantly. It seems like we're not getting the full airflow.The flame sensor monitors the burner to detect whether or not a flame is present. If the flame sensor is defective, it might fail to detect a flame. If the flame sensor does not …

Furnace Trane *UH1B040A9241A Installer's Manual. Upflow/ horizontal, downflow/ horizontal, gas-fired, direct vent condensing furnaces (40 pages) Furnace Trane XR95 Performance Data Sheet. Single-stage fan assisted combustion system (18 pages) Furnace Trane TUHMB060ACV3VB User Manual. Communicating upflow/horizontal left downflow/horizontal ...Product description. Trane Sensor; Flame, Nikrothal 80 Material. This is a genuine OEM (Original Equipment Manufacturer) part. Use genuine OEM parts for safety reliability and performance. Trane offers a wide array of parts to repair your commercial HVAC units. Find the exact component and attachement you need for your furnace or AC unit.C340056P04 - Trane OEM Furnace 3" Replacement Limit Switch: Hvac Controls: Amazon.com: Industrial & Scientific ... 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. $12.79 $ 12. 79.Jun 2, 2021 · 147 subscribers. 8.6K views 2 years ago. Changing a flame sensor on a Trane furnace. Common issue is the gas ignites and then shuts off with 3-5 seconds. Indication of a dirty flame... Locate the Flame Sensor. Make sure to turn off the gas and the power to the furnace to avoid any potential problems while you are working on the heating and cooling system. Once the gas and power have been turned off to the furnace, locate the flame sensor on or next to the burner assembly. Remove the access panel to find the flame …Hi, I'm replacing an existing furnace due to a failing flame sensor and cracked heat exchangers with a new Trane XV95. One of the HVAC contractors has proposed a replacement system and included model numbers however those model numbers are not listed on the residential Trane web site. After reading a number of previous posts it appears that several of the moderators and participants have ...

If you want to help support Shannon to produce more videos like this, visit https://www.house-improvements.com/donateShannon from https://www.house-improveme...My Favorite Tool: https://amzn.to/3NIFJuOEmery Cloth: https://amzn.to/3x6qMgtCommon replacement flame sensors:Goodman: http://amzn.to/2ykiXG5Trane: http://...1) weak ignitor or burners not lighting off smoothly. You'll need to watch the ignition process. Make sure all burners light off quickly and smoothly. Make sure you shined up the flame sensor good and got it back in the correct position. 2) check you intake and exhaust pipes to make sure there is no blockage.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 4.6 out of 5 stars 99Furnace Flame Sensor Replaces Lennox Armstrong Ducane 102431-01 LB-74940A LB74940A. Fits Lennox Armstrong Ducane. $9.99.Product description. Trane Sensor; Flame, Nikrothal 80 Material. This is a genuine OEM (Original Equipment Manufacturer) part. Use genuine OEM parts for safety reliability and performance. Trane offers a wide array of parts to repair your commercial HVAC units. Find the exact component and attachement you need for your furnace or AC unit.

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3. Flame Failure. This issue means there is not enough gas or air to keep a steady, hot flame going. This problem could be happening because of clogged filters, a dirty burner chamber and tank, broken burners, or too much pressure in your combustion chambers. Make sure that all the filters are clean and replace them if they look damaged …Trane® Home Diagnostics: Consumer Information; Dealer Remote Access (DRA) If you have any questions or need assistance, please contact Trane Home Customer Support via email at [email protected] or call 1-877-288-7707, Monday-Friday 9 AM – 8 PM ET, and Saturday 10 AM – 5 PM ET.As we mentioned earlier, older model furnaces burn visible blue flames. If your furnace has a blue flame, it's lit by the pilot light. On the other hand, newer model furnaces function with an electric ignition that eliminates the need for a constant flame. If your furnace has a pilot light, it will be controlled by a knob on the bottom of ...Problem with trane xv95. Contractor's Assistant: How old is your Trane unit? 7 years old. Contractor's Assistant: How long has this been going on with your Trane unit? What have you tried so far? ... Tech first said it was dust on the flame sensor, blew off then happened again.Regular maintenance from your local Trane technician can catch minor issues before they become major problems and help extend the lifespan of your furnace. 2. Is your thermostat working properly? Sometimes, the problem isn't that your heat won’t turn on, but the thermostat is not working properly. If your heater isn't producing heat, check ...Trane XV95 hybrid unit with natural gas furnace Monday DEC 19 six flash code after hours indicating ignition issue. Technician came with 120v igniter and could not get unit to fire up. ... so I watched videos and read the forums and taught myself how to remove and clean the flame sensor. It worked and the heat stayed on all night avoiding …

Perfectly shape the flame cone for the maximum heat possible while using less fuel. No service adjustment necessary. 10 Automotive-grade gaskets and insulated blower compartment ... TRANE XC95 VARIABLE-SPEED, THREE-STAGE DOwNFLOw/HORIZONTAL FURNACE TDH3B060ACV3VA 3 92.1 40 17.5 28Model Comparison Based on Features. Trane’s top-selling products XC95M and the S9X2, have a different mode of operation and a couple of other features. XC95M comes with modulating gas Furnace and can operate between 40 to 100 percent at its highest capacity. On the other hand, S9X2 works on the two-stage Furnace and can run at high-flame and ...The suggested solution was to remove and clean the flame rod and reinstall it. After turning off the AC power at the circuit breaker panel and turning off the gas valve, I removed the flame sensor rod and sure enough, it had a slight coating of residue on it.Flame Sensor for Trane Furnace - Flame Sensor Igniter Sensing Rod for Trane XR80 XR90 XB80 XE80 and American Standard Gas Furnace, Heat Sensor Replace SEN01114 SEN00491 SEN0337 B340888P01-2PCS: Amazon.com: Tools & …Hover Image to Zoom. $ 36 09. Pay $11.09 after $25 OFF your total qualifying purchase upon opening a new card. Apply for a Home Depot Consumer Card. Ceramic construction ensures excellent durability. …XR95 installation problems with 3 blinks of led. Trane stated that the unit has a 2" vent outlet but the piping should be 3". My contractor installed 2" with three 90 elbows and the inducer would come on but no gas would flow and the igniter would not light. Replacing the 2" with 3" and only using two 45 elbows fixed the problem.There are many possible reasons your AC is not cooling the house. In an air conditioning system, many parts work together to help your air conditioner function properly, and if something goes wrong with one, it could impact the entire system.If your AC is not cooling the house, some common AC problems homeowners face might be that the filters are …trane xv95 furnace circuit board warranty . we had a Trance XV95 furnace installed in 2013. Recently the fan keeps turning on and off and no heat was coming out. We were told it may be due to the bad circuit board by the technician. ... While lack of maintenance could be attributed to issues with the burners, flame sensor, dirty blower wheel ...

Dilema regarding the selection of suitable gas furance, specifically the Trane models XC95m, XC95 or XV95. I have spoken to 3 trane contractors and have received different advise and recommendations b … read more

As we mentioned earlier, older model furnaces burn visible blue flames. If your furnace has a blue flame, it’s lit by the pilot light. On the other hand, newer model furnaces function with an electric ignition that eliminates the need for a constant flame. If your furnace has a pilot light, it will be controlled by a knob on the bottom of ...trane xv95, tries to ignite, cfm green light is on, status green light goes on and off, red light above status goes on and of, flame comes on for a few seconds and then goes out. … read more Comfort SpecialistFlame Sensor for Trane Furnace - Flame Sensor Igniter Sensing Rod for Trane XR80 XR90 XB80 XE80 and American Standard Gas Furnace, Heat Sensor Replace SEN01114 SEN00491 SEN0337 B340888P01-2PCS. 4.4 out of 5 stars 38. 100+ bought in past month. $10.98 $ 10. 98 ($5.49/Item)Make: Trane XT95, Model Number: TUH1B080A9H31CA, Serial Number: 14162KS37G. with my old furnace I always kept a few spare low cost parts on hand in case I had a failure. I kept a flame sensor, and a s … read moreThe flame sensor would fail every two weeks and every time I would clean it up and put it back in and everything would be okay. This made me very frustrated, so I talked to a number of HVAC stores, and none had any idea what was precipitating the situation. ... Flame sensor in Trane XV90. 1. Gas furnace control board issues: main …Flame Sensor for Trane Furnace - Flame Sensor Igniter Sensing Rod for Trane XR80 XR90 XB80 XE80 and American Standard Gas Furnace, Heat Sensor Replace SEN01114 SEN00491 SEN0337 B340888P01-2PCS. 4.4 out of 5 stars 38. 100+ bought in past month. $10.98 $ 10. 98 ($5.49/Item)Wvfan79 : Turn the thermostat to the off position, go to the furnace and remove the doors. Find the gas valve and follow the 3 wires to the integrated furnace control board, set the meter to a low VAC setting as you will be checking for 24 volts.Place your black lead on the ground block in the furnace and your red lead to the Red wire on the …The flame sensor comes into contact with the flame, and it is quite common for debris to buildup on it. In fact, most annual furnace inspections involve a technician cleaning the flame sensor as part of the preventative service visit. A furnace that cycles on and off quickly, especially after resetting a lockout, often has a dirty flame sensor ...

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Step 2: Locate the Pilot. Take off the furnace cover and locate the gas valve and the gas control, which is a plastic or metal knob with three settings: "on," "off" and "pilot." You'll see three tubes coming from the bottom of the gas valve. Follow one of the two smaller ones (the large one is for the gas burners) inside the burner compartment ...How to clean and check the flame sensor on a furnace.If you have a furnace that is cycling on and off too fast, you may have a flame sensor that needs to be ...item 7 TRANE AMERICAN STANDARD OEM Furnace Flame sensing rod TRANE AMERICAN STANDARD OEM Furnace Flame sensing rod. $10.00. See all 7 - listings for this product. Ratings and Reviews. Learn more. Write a review. 5.0. 5.0 out of 5 stars based on 11 product ratings. 11 product ratings. 5.Trane XV95 burners not lighting. Two weeks ago, after what I thought was much research, I had a Trane XV95 furnace installed. It worked perfectly for the first week - held the temp within +/- 1/2 degree F. Then I noticed it would occasionally blow cool air for an extended period of time while the house temp dropped to 2 or 3 degrees F below the ...Afterwards, once the gas has had a chance to evaporate, switch the knob to “Pilot.”. Then, while holding down the “Reset” button, put the flame of a long lighter up near to the pilot light aperture to reset the pilot. This should ignite the pilot light on the furnace. Allowing the reset button to come to rest once you are certain that ...To test a flame sensor, follow these steps: Turn off the power to your furnace and open the access panel to the burners. Find the flame sensor. Somewhere in front of the burners is the flame sensor. The flame sensor is usually a short rod that sticks out in front of where the flame would be. Remove the flame sensor wire.Problem with trane xv95. Contractor's Assistant: How old is your Trane unit? 7 years old. Contractor's Assistant: How long has this been going on with your Trane unit? What have you tried so far? ... Tech first said it was dust on the flame sensor, blew off then happened again.The flame sensor is a safety component of a furnace located on the interior of the burner assembly. It monitors and verifies whether a flame is burning inside the unit. If the sensor does not detect an active flame, then it will shut the furnace off to avoid a potential gas leak. The furnace flame sensor helps prevent explosions that could ...With only the 2 right burners running the flame sensor does not detect flame so I expect this is why it stops and tries to restart. It appears the burner feed tube can be unfastened at the top and rotated forward/down to give access to their jets.Hello - I have a Trane XR90 system that is having a problem that I can't seem to diagnose. Here is the system... In a so far unsuccessful attempt to fix this problem, I have replaced the control board (used KIT18110, which is an upgrade over what I had previously, and this kit included a new ignitor, which I also installed), and I also replaced … ….

Trane Sensor; Flame, Nikrothal 80 Material. This is a genuine OEM (Original Equipment Manufacturer) part. Use genuine OEM parts for safety reliability and ...If you want to help support Shannon to produce more videos like this, visit https://www.house-improvements.com/donateShannon from https://www.house …Gas and Oil Home Heating Furnaces - Trane XB80 Ignition Trouble - I have a Trane XB80 furnace. For the last few years, it would intermittently fail to ignite and go into lockout mode. Cleaning the flame sensor has always resolved the issue. The “fix” would typically last the heating season and then I would need toGas and Oil Home Heating Furnaces - Propane Trane XE90 furnace issue - I have Trane XE 90 furnace, works on propane. It is 13.5 years old, has been regularly serviced, no major issues. Failed only once in the past and orifices were changed to fix it. This is a unit in the attic, with 2 burners sitting vertically (anotheMost Common Solution 02 - Trane Furnace Flame Sensor The flame sensor monitors the burner to detect whether or not a flame is present. If the flame sensor is defective, it might fail to detect a flame. If the flame sensor does not detect a flame, the control board will shut off voltage to the gas valve to prevent the furnace from heating.Mike shows you how to replace the flame sensor in his furnace. The process should be similar for most furnaces.Links:Furnace Troubleshooting: Bad Flame Senso...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 4.6 out of 5 stars 99Make sure that the flame sensor rod on the switch is not dirty. 5 Flashes. The unit sensed a flame when no flame should be present. Check the flame sensor and the gas valves. The latter might be stuck or leaking gas. 6 Flashes . A reversed polarity issue or poor grounding. If you know how to work with wires, you can check the …This category contains flame sensors and supplies manufactured by Trane. Free shipping on orders over $99 ... Trane Flame Sensors. 16 ...When the flame sensor goes bad, the furnace will light for several seconds and then turn back off on the flame sensor safety ; Customers also search. Page 1 of 1 Page 1 of 1. Previous page. nordyne flame sensor. janitrol flame sensor. trane flame sensor. nordyne furnace ignitor. Next page. Trane xv95 flame sensor, My Trane XV90 is having some ongoing issues, the furnace went out last week and now will not ignite. The sequence of events are as follows: Turn the unit on- inducer fan turns on and comes up to speed-igniter glows-gas valve opens- furnace ignites jets- jets are immediately extinguishes. I cannot hear the pressure switches clicking and I …, As we mentioned earlier, older model furnaces burn visible blue flames. If your furnace has a blue flame, it's lit by the pilot light. On the other hand, newer model furnaces function with an electric ignition that eliminates the need for a constant flame. If your furnace has a pilot light, it will be controlled by a knob on the bottom of ..., Hello, I have a Trane XV95 (about 3 years old) that stopped outputting heat today. The blower is going at full strength, however. Inside the lower panel, I there is a green light blinking slowly. ... technician came out and said everything was working as designed except it needed flame sensor, ignitor, and blower capacitor. However, ..., 52W29 Flame Sensor for Lennox,Ducane,Armstrong Furnaces G40 G41 G50 G51 G60 G61 G71- Replace 52W2901 31L7101 31L71 LB-74940A 28PV41 by TOMOON, Pack of 2 4.4 out of 5 stars 191 1 offer from $11.77, Flame Sensor for Trane Furnace - Flame Sensor Igniter Sensing Rod for Trane XR80 XR90 XB80 XE80 and American Standard Gas Furnace, Heat Sensor Replace SEN01114 SEN00491 SEN0337 B340888P01-2PCS. OEM Trane IGN00145 American Standard Hot Surface Ignitor., Get the best deals on Trane Home HVAC, Parts & Accessories when you shop the largest online selection at eBay.com. Free shipping on many items ... SEN1114 Genuine OEM Trane Nikrothal 80 Flame Sensor (11) Total Ratings 11. 100% agree - Would recommend. $6.29 New. OEM Trane American Standard A C Contactor Relay 2 Pole 30 Amp …, The flame rollout switch (typically mounted on the side of the burner box) is a safety device which senses a hot flame or exhaust and shuts down the furnace to prevent a fire or carbon monoxide buildup in your house. Once it has tripped the furnace will not start unless you reset it. Share. Improve this answer. Follow., Trane Furnace Flame Sensor. Genuine OEM Part # SEN01114 | RC Item # 2582255. 66 Reviews. Skill Level. We sell the real thing! Watch Video. $20.03. Furnace flame sensor. The flame sensor monitors the burner to detect whether or not a flame is present., I replaced flame sensors, igniters, draft inducer and kept it vac'd out and the AC fins cleaned. My new house has a shiny newish Trane, about 6 years old. I understand these to be a lot more complex with the secondary heat exchanger, etc, but want to keep spare parts on hand if needed., If your air conditioner isn’t working, and you think your AC drain line is the culprit, it’s always safest to have an HVAC professional fix the problem instead of trying to troubleshoot it yourself.As soon as you notice a problem, turn off your air conditioner completely and contact a professional. When a technician comes to assess the drain line, they will likely …, Model Comparison Based on Features. Trane’s top-selling products XC95M and the S9X2, have a different mode of operation and a couple of other features. XC95M comes with modulating gas Furnace and can operate between 40 to 100 percent at its highest capacity. On the other hand, S9X2 works on the two-stage Furnace and can run at high-flame and ..., Flame Sensor for Trane Furnace - Flame Sensor Igniter Sensing Rod for Trane XR80 XR90 XB80 XE80 and American Standard Gas Furnace, Heat Sensor Replace SEN01114 SEN00491 SEN0337 B340888P01-2PCS. 4.3 out of 5 stars 29. $9.98 $ 9. 98 ($4.99/Item) 20% coupon applied at checkout Save 20% with coupon., Jun 2, 2021 · 147 subscribers. 8.6K views 2 years ago. Changing a flame sensor on a Trane furnace. Common issue is the gas ignites and then shuts off with 3-5 seconds. Indication of a dirty flame... , XV95. HVAC Technician: airheatman. That is a series containing several models.Look inside for a number that starts with TUD,TDE,TDD etc. I have to leave at midnight which is a few minutes from now so I am going to open this to other experts so you do not have to wait. Ask Your Own HVAC Question., 4. Ensure A Good Flame Sensor. Your furnace is very likely to go into lockout mode if the flame sensor is faulty. The flame sensor signals your furnace about the function of the overall system. If the flame sensor sends the wrong message, your furnace will go into a lockout system. Check the flame sensor regularly., Both times, when the flame sensor was replaced, the the igniter then seemed to not work, so then that was replaced. Then the system would work somewhat better. but the issue remains that the furnace still doesn't ignite immediately sometimes and its predictability seems to be random, which makes it impossible to go away from the house …, 5,490 satisfied customers. Red light flashing on Trane XV80: furnace runs but no heat. I have a Trane XV80. The red light is blinking twice followed by a pause. Thermostat is calling for heat but I am getting nothing - the air that … read more., Touch the multimeter probes on the sensor’s blue and white wire ports to check for resistance without heating. You should get a very low resistance, usually below 1.0 amps. To check the resistance when the sensor is heated, press the sensor’s tip (wire probe at the tip) against a 60-watt bulb or a test lamp., Afterwards, once the gas has had a chance to evaporate, switch the knob to “Pilot.”. Then, while holding down the “Reset” button, put the flame of a long lighter up near to the pilot light aperture to reset the pilot. This should ignite the pilot light on the furnace. Allowing the reset button to come to rest once you are certain that ..., 3 Post Likes Trane XV95 intermittent issue Recently purchased house with Trane XV95 unit. The furnace often fails to stay lit on the first attempt to light. Almost always succeeds on the second attempt but a couple times a day will fail 3x and then time out for a few hours. I cleaned the flame sensor and then replaced the flame sensor., The suggested solution was to remove and clean the flame rod and reinstall it. After turning off the AC power at the circuit breaker panel and turning off the gas valve, I removed the flame sensor rod and sure enough, it had a slight coating of residue on it., Manuals and User Guides for Trane XV95. We have 1 Trane XV95 manual available for free PDF download: User's Information Manual ... Flame Roll-Out Device. 4. To Start the Furnace. 4. Upflow/Horizontal/Downflow Furnace. 5. Air Filters. 6. Proper Maintenance. 6. Troubleshooting. 8. Dimensions. 8., Trane Supply offers a comprehensive catalog of HVAC parts and supplies for professionals and contractors. Download the PDF version of the catalog and browse through hundreds of pages of products, specifications, and technical data. Whether you need equipment, controls, electrical, or OEM parts, you can find them in the Trane Supply catalog., Order From Repair Parts Inc Compatible Trane 2582255 HVAC Furnace Flame Sensor. Part is Designed To Meet/Exceed OEM Specs., Problem with trane xv95. ... ?What does light on board do when it fails?Click the link below to watch a short generic video showing how to clean the flame sensor ..., The Furnace only ignites when a flame sensor confirms a pilot flame and sends voltage to the gas valve. The process ensures that the system does not turn on without fire and prevents gas buildup. In older furnace models, the thermocouple was responsible for this task. When the Furnace lacks cleanliness, these sensor devices tend to malfunction., Trane XV95 not firing randomly and 2 red flashes. Furnace is about 6 years old and I have inherited with the house we bought. This problem is hunting me for good part of the winter. We have been using wood burning stove all the time and we would never notice the furnace not working until some really cold weather came in and we forgot to add ..., Manuals and User Guides for Trane XV95. We have 1 Trane XV95 manual available for free PDF download: User's Information Manual ... Flame Roll-Out Device. 4. To Start the Furnace. 4. Upflow/Horizontal/Downflow Furnace. 5. Air Filters. 6. Proper Maintenance. 6. Troubleshooting. 8. Dimensions. 8., Trane XV95 intermittent issue. Recently purchased house with Trane XV95 unit. The furnace often fails to stay lit on the first attempt to light. Almost always succeeds on the second attempt but a couple times a day will fail 3x and then time out for a few hours. I cleaned the flame sensor and then replaced the flame sensor. No significant change., April 10, 2023 by William. Trane Furnace’s red light flashing 3 times tells you either there is an issue with your furnace pressure switch or a fault with the ventilation. Plus, clogged inducer fans, blocked condensate drain and pumping lines are also responsible for the red light blinking 3 times. To fix your furnace’s 3 blinking instantly ..., HVAC installer added a $775 tip. Quoted $1,900 to replace the indoor coil for a two-year-old system. The parts are covered under warranty, I was told it was a 7-8 hour job, and that the quote covers labor and refrigerant., this could be a dirty flame sensor or a broken ignitor. Turn furnace off and back on...watch furnace burner area...if there is a glow and 3 seconds of flame it just need the sensor cleaned. ... I have a trane XV95 that stopped producing heat last night. I went through and troubleshot my thermostat and that is not the issue. ..., The flame sensor is a safety component of a furnace located on the interior of the burner assembly. It monitors and verifies whether a flame is burning inside the unit. If the sensor does not detect an active flame, then it will shut the furnace off to avoid a potential gas leak. The furnace flame sensor helps prevent explosions that could ...