Rheem criterion 2 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 resulting in the burners not staying lit. Sometimes, if the flame sensor is dirty, it will fail ...

Rheem criterion 2 flame sensor. Advertisement. Table of Contents. 1 Standard Equipment. 2 Optional Equipment. 3 Upflow Dimensions. 4 Horizontal Dimensions. 5 Accessories. Download this manual. GAS …

You can also view RGPH-07AUER/Serial: EM parts diagrams and manuals, watch related videos or review common problems that may help answer your questions to get started on fixing your Furnace model. For additional assistance, please contact our customer service number at 1-800-269-2609, 24 hours a day, seven days a week or send us a message using ...

Aug 5, 2013 · Furnace Flame Sensor Rod 62-23543-01 Replacement for Rheem, Ruud, WeatherKing, Thermal Zone, DuroGuard Furnace Replacement Ignitors 62-2354301, 6223543-01, 622354301 4.6 out of 5 stars 218 1 offer from $9.47 To clean the flame sensor, first, make sure that you have turned the furnace off. Pull the wire off the sensor, remove the screws, and gently wipe the component with steel wool or sandpaper. Tip: the flame sensor is usually located in the direct path of the burner, it is a metal rod with a wire attached to it.This 62-23543-01 Flame Sensor is a genuine replacement part for furnaces and is available now from Repair Clinic. Get your furnace back up and running with DIY instructions and OEM replacement parts. Shop now and get same-day shipping on this 62-23543-01 Flame Sensor.OEM Upgraded Replacement for Rheem Furnace Flame Sensor 62-23543-01 by Replacement for Rheem (Original Version) 726. 200+ bought in past month. $599. List: $9.40. FREE delivery Fri, Apr 26 on $35 of items shipped by Amazon. Or fastest delivery Thu, Apr 25. More Buying Choices.If you drive a relatively new car, there are usually a few sensors and cameras in place to help keep you safe. Here are the six major sensors on your car you should look for and ke...Kit includes: flame rod/sensor, gasket and mounting hardware; For use on rheem advantage plus water heaters; Genuine OEM replacement kit; 1 year limited warranty; Made of durable ceramic and metal; Prepackaged for your convenience; Senses flame to ensure proper operation; Easy to install; Call 1-800-432-8373 to ensure this is the correct part ...What is the Rheem Criterion II Flame Sensor? The flame sensor is a safety device that detects the presence of a flame in your furnace. It’s located near the burner assembly and is responsible for shutting off the gas valve if it senses that the burner isn’t igniting properly. This prevents gas from building up in your furnace and ...

622174401 Rheem Flame Sensor: Technical Data: Length - Mounting Flange To Sensor Tip (Inches): 2-3/64 Termination: 1/4 Inch Male Quick Connect Used on: RGDC (S/N code G), RGDD (S/N code G) Replaces The Following Rheem / Ruud Part Numbers: 8554-5516, 8405-5609, 6094-5605, 8404-5523 Invensys-Mexicali 47483C All Controls Should Be …2 Packs Flame Sensor Igniter Sensing Rod Fit Replacement of 62-24164-01 Model for Rheem Furnace and 232258 2-Prong Electrode Assembly, Fire Pit Spark with 31.5" High Temperature Cable Wire. 17. $1888. FREE delivery Sat, Mar 23 on $35 of items shipped by Amazon. Or fastest delivery Fri, Mar 22.WARNING: Please do NOT attempt any procedures you see in this video without professional HVAC training or you are under the direct supervision of a licensed ...Mine has only one wire running to the sensor, meaning that the other leg of the circuit is to ground, through the metal frame of the furnace. That metal is painted, so really the main connection is the screw that holds the sensor. It was slightly corroded. I replaced the flame sensor last year, and had a bit of short cycling again recently.Hi, our Rheem Criterion II RGDG furnace is not heating--I had a technician out, and he said the flame sensor needed repairing. So I've gone ahead and done that, and yet it still comes on, the glow thing comes on, the burners ignite, and seems to start, yet blows unheated air until it cycles through again.622174401 Rheem Flame Sensor: Technical Data: Length - Mounting Flange To Sensor Tip (Inches): 2-3/64 Termination: 1/4 Inch Male Quick Connect Used on: RGDC (S/N code G), RGDD (S/N code G) Replaces The Following Rheem / Ruud Part Numbers: 8554-5516, 8405-5609, 6094-5605, 8404-5523 Invensys-Mexicali 47483C All Controls Should Be …Furnace Rheem CRITERION II Product Information Manual. 80.0-82.2% a.f.u.e. downflow gas furnaces; models with input rates from 50,000 to 150,000 btu/hr [15 to 44 kw] (8 pages) ... Flame sensor diagnostics. service dealer to …

Rheem Criterion II furnace (1997): HSI glows, flame starts, then stops after 15 sec. Jump to Latest Follow 2K views 5 replies 2 participants last post by yuri Jan 29, 2018Replacement Parts. Whether you need manufacturer-approved parts for our water heaters or air filters and other accessories, we have the parts you need to keep your equipment operating at its best. We also offer universal parts that fit many other brands. And every order receives free ground shipping and returns. Flame Sensor. IMPORTANT: Heating, ventilation, air conditioning or refrigeration parts and accessories should only be installed by qualified technicians. Failure to understand and follow the manufacturer’s installation and use instructions may result in fire or explosion, electric shock, property damage, injury or loss of life. 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. Sometimes, if the flame sensor is dirty, it will fail to ...Nov 4, 2021 · Step 3: Remove the Flame Sensor. Disconnect the wire by pulling it off the terminal. The wire has a spade connector, and these sometimes get stuck, so you may have to pull hard. Loosen the screw holding the sensor to the wall of the burner housing using a flat-head screwdriver. Put the screw in a safe place and then pull out the sensor. You can also view RTGH-95DVLN-2 parts diagrams and manuals, watch related videos or review common problems that may help answer your questions to get started on fixing your Water Heater model. For additional assistance, please contact our customer service number at 1-800-269-2609, 24 hours a day, seven days a week or send us a message using the ...

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Attempting to install the incorrect part voids the return coverage. If you are not completely sure your order is correct please give us a call at 888-757-4774. Rheem 62-24164-01 - Direct Spark Ignitor w/ 35" Lead Wire, 62-24164-01- 62-24164-01 is an official OEM Direct Spark Ignitor w/ 35" Lead Wire for Rheem HVAC equipment.Flame Sensor Features. Length (Mounting Flange to Sensor Tip): 2-1/2" Length - Sensor Offset : 1-9/16" Angle - Sensor Offset (degrees): 90 Termination: 1/4" Male Quick ConnectRheem Furnace Flame Sensor. Genuine OEM Part # 62-23543-01 | RC Item # 2638575 # 62-23543-01 RC Item # 2638575. Rating (5) 5 star rating. Reviews. Skill Level (2) We sell the real thing! Watch Video. $14.57. Flame sensor. ADD TO CART. Rheem Furnace Gas Valve Assembly.26 Jan 2022 ... What is the Flame Sensor The flame sensor senses the flame to ensure the furnace has fired. If there is a gas valve open but the furnace ...Rheem criterion II rglh-o5eauer Will not ignite. everything works normal, blowers work and even after gas shuts off main blower comes on and stays on. flame sensor works as its not on without flame an …Advertisement ­C­lusters are now being used on a smaller scale for sensors. For instance, a traditional pressure sensor contains a device that outputs a varying voltage depending o...

Xiaomi launched a new flagship offering called the Xiaomi 12T pro that has a 200-megapixel sensor as its marquee feature Xiaomi just launched the 12T Pro, a flagship with a 200-meg...The Rheem. ®. Criterion II Plus 2 LXE line of upflow/horizontal. gas furnaces are designed for utility rooms, closets, alcoves, or attics. Because of the Criterion's low-profile. 34 inch [864 mm] height, the upflow model installed. vertically can also be used to satisfy most applications.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. Sometimes, if the flame sensor is dirty, it will fail to ...Premium Quality: Flame Sensor is made from durable high quality wear-resists metal and ceramics. Ensure long-lasting and high performance. Termination: 1/4” male quick connect, Angle - sensor offset: 90 degrees. Function: The furnace flame sensor is designed to detect the flame. A good replacement for Rheem 62-23543-01.Do you know what’s included in your Rheem water heater warranty? It may not be as comprehensive as you think; get better coverage with a home warranty. Expert Advice On Improving Y...I have a Rheem Criterion 2 furnace the two green lights inside say solid but the orange light which I think it's a flame light lashes and looks weak sometimes I replace the flame sensor and the flame ... Replaced flame sensor, it did not appear bad and it still does not stay lit. 120v coming to board, ...Quck answer To clean the flame sensor on Rheem heaters, follow these steps: 1. Turn off the power to the heater and wait for it to cool down. 2. Locate the flame sensor, which is usually a metal rod near the burner assembly. 3. Remove the sensor by unscrewing it from its bracket. 4. GentlyI have a Rheem Criterion 2 furnace the two green lights inside say solid but the orange light which I think it's a flame light lashes and looks weak sometimes I replace the flame sensor and the flame ... Replaced flame sensor, it did not appear bad and it still does not stay lit. 120v coming to board, ...You can also view RGPH-10AMER/Serial: EM parts diagrams and manuals, watch related videos or review common problems that may help answer your questions to get started on fixing your Furnace model. For additional assistance, please contact our customer service number at 1-800-269-2609, 24 hours a day, seven days a week or send us a message using ...

RUUD AIR CONDITIONING DIVISION. 5600 Old Greenwood Road, Fort Smith, Arkansas 72908 “In keeping with its policy of continuous progress and product improvement, Ruud reserves the right to make changes without notice.”. PRINTED IN U.S.A. 3-99 DC FORM NO. G22-448 REV. 6. Supersedes Form No. G22-448 Rev. 5.

Heating & Cooling. Furnaces. With nearly 100 years of experience, Rheem ® has used the power of gas to fuel some great advancements in energy-efficient home heating, making a Rheem gas home furnace one of the smartest choices you can make. With our wide range of propane or natural gas furnace models available with a variety of advanced ...We have 4 Rheem 10EBRJR manuals available for free PDF download: Installation Instructions Manual, Manual, Instruction Manual Rheem 10EBRJR Installation Instructions Manual (40 pages) Brand: Rheem | Category: Furnace | Size: 1.55 MBCriterion rheem ii manualsRheem criterion ii plus 2 lxe rgpl- series furnace manual pdf view Rheem criterion ii manual installationFixing rheem criterion gas furnace flame sensor. Rheem wiring diagram thermostat furnace wire criterion where manuals manual ii user stack reab connect imgur collection ok starts inductionRheem criterion …3. Remove The Access Panel Cover Of The Unit. To access the unit's interior components, open the metal plate cover by turning the knob on the lower right of the panel 90 degrees to the left and open it up. Verify that none of the parts has any obvious damage. 4. Locate The Flame Sensor.All models can be converted by a qualified Rheem distributor or local service dealer to use L.P. (propane) gas without changing burners. Factory approved kits must be used to convert from natural to L.P. (propane) gas and may be ordered as optional accessories from a Rheem parts distributor.This Rheem Criterion II furnace was installed in 2001. I turned the gas off last year (in the spring) and didn't turn the power off to the furnace. When I turned to gas back on to the furnace this week and the furnace is not lighting. I have a video on Youtube that shows my furnace not lighting. The "power" light comes on and the "Ok" light ...12-15-03, 06:12 AM. B. bruiser. Member. Thread Starter. Join Date: Dec 2003. Posts: 123. Upvotes: 0. Received 0 Upvotes on 0 Posts. Rheem flame sensor. I have a Rheem …

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This morning it started. Them criterion 2 Furnace cycles on and ignites for around 4-5 seconds then turns off. Replaced flame sensor, it did not appear bad and it still does not stay lit. 120v coming to board, 27v coming out of transformer. The orange flame LED never lights up at any point.Call or text 888-757-4774. +. Rheem SP12144 - Flame Sensor Replacement- Flame Sensor. 2 Packs Flame Sensor Igniter Sensing Rod Fit Replacement of 62-24164-01 Model for Rheem Furnace and 232258 2-Prong Electrode Assembly, Fire Pit Spark with 31.5" High Temperature Cable Wire. 17. $1888. FREE delivery Sat, Mar 23 on $35 of items shipped by Amazon. Or fastest delivery Fri, Mar 22. 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. Sometimes, if the flame sensor is dirty, it will fail to ...Rheem CRITERION II: Product Information Manual | Brand: Rheem | Category: Furnace | Size: 0.27 MB | Pages: 8. This manual is also suitable for: Rglh-05eauer, Rglh-05nauer, …The moment was captured in all its intensity in a video shot by AFP correspondent Patrick Galey. Gasps and sobs are heard in the background. As thousands of horrified Parisians and...I have a Rheem Criterion Gas Furance installed in 1993. I replaced the IFC board and installed a remote flame sensor. The IDM fan comes on, the ignitor heats up, the flame comes on, but shuts off within 10 seconds. The 2 green lights come on but not the orange light, which I am assuming, is the sensor telling the board to stay on.WEAR WORK GLOVES TO PROTECT YOUR HANDS. This Rheem 62-23543-01 Flame Sensor is a genuine OEM repair part. It is brand new in the original Rheem factory packaging and is guaranteed to fit and function properly. Please see below for important information and a list of models that this part fits. Fits These Models. ….

Seems like both Criterion 2 models have a flame sensor. A lower picture of the burners might reveal a flame sensor if one is present. The newer low voltage hot surface ignitors pull 1/10th the amperage of the older 120 volt 3 amp models when I measure them on MC heat checks.To start, I have a Rheem Criterion 2 gas furnace with a ceramic igniter. Okay, so last month my heater started acting up. Its flame would ignite, but the flame would go out from anywhere between 10-60 seconds. I asked a HVAC technician acquaintance of mine what I should do, and he said it may be the flame sensor. I replaced the flame sensor.My Rheem criterion II plus 2 gas furnace is only blowing cold air. It came on this morning as usual and was heating the house when after about two hours I noticed the house temperature was going down and the furnace was still on. The limit switch has continuity and I cleaned the flame sensor yesterday ... cleaned flame sensor and …To clean the flame sensor, first, make sure that you have turned the furnace off. Pull the wire off the sensor, remove the screws, and gently wipe the component with steel wool or sandpaper. Tip: the flame sensor is usually located in the direct path of the burner, it is a metal rod with a wire attached to it.Part # 62-23543-01. Flame Sensor. Detects when the burner flame has ignited and sends a signal to the control board to stop the igniter from operating. For use with furnaces. OEM …Rheem furnace criterion offerupRheem criterion flame sensor furnace gas where rod furnaces doityourself Rheem criterion ii installation manual manualslib makes it easy to findRheem furnace repair service nj licensed & insured (888) 333-2422.WEAR WORK GLOVES TO PROTECT YOUR HANDS. This Rheem 62-23543-01 Flame Sensor is a genuine OEM repair part. It is …332. 145K views 8 years ago. Remember to subscribe to my channel. Informational video for testing the flame sensor on a Rheem furnace. This video is where I show how to …30 Nov 2016 ... In this HVAC video, we go over the Testing of the Flame Sensor and Step by Step Troubleshooting Processes of the Flame Rectification Process ...All models can be converted by a qualified Rheem distributor or local service dealer to use L.P. (propane) gas without changing burners. Factory approved kits must be used to convert from natural to L.P. (propane) gas and may be ordered as optional accessories from a Rheem parts distributor. Rheem criterion 2 flame sensor, Replacement Parts. Whether you need manufacturer-approved parts for our water heaters or air filters and other accessories, we have the parts you need to keep your equipment operating at its best. We also offer universal parts that fit many other brands. And every order receives free ground shipping and returns., To start, I have a Rheem Criterion 2 gas furnace with a ceramic igniter. Okay, so last month my heater started acting up. Its flame would ignite, but the flame would go out from anywhere between 10-60 seconds. I asked a HVAC technician acquaintance of mine what I should do, and he said it may be the flame sensor. I replaced the flame sensor., 3. Remove The Access Panel Cover Of The Unit. To access the unit's interior components, open the metal plate cover by turning the knob on the lower right of the panel 90 degrees to the left and open it up. Verify that none of the parts has any obvious damage. 4. Locate The Flame Sensor., You can also view RGDG-10EBRJR parts diagrams and manuals, watch related videos or review common problems that may help answer your questions to get started on fixing your Furnace model. For additional assistance, please contact our customer service number at 1-800-269-2609, 24 hours a day, seven days a week or send us a message using the live ..., Rheem Criterion Control Board was replaced, but the flame only lasts for 7 seconds and the Flame LED does not glow. It - Answered by a verified HVAC Technician. ... The Protech documentation says that I need to remove the existing flame sensor rod and replace it with part 62-24044-71 - but I'm wondering if there is a way to "patch" the …, Aug 16, 2023 · Quck answer To clean the flame sensor on Rheem heaters, follow these steps: 1. Turn off the power to the heater and wait for it to cool down. 2. Locate the flame sensor, which is usually a metal rod near the burner assembly. 3. Remove the sensor by unscrewing it from its bracket. 4. Gently , Gas and Oil Home Heating Furnaces - Rheem flame sensor - I have a Rheem Criterion II, Plus 2 furnace. It is barely a year old. The flame sensor needs to be cleaned every few days. The place I bought it it from says there is no cure for the flame sensor problem. Even if they installed a new one it would still have the, We have 4 Rheem 12EARJR manuals available for free PDF download: Installation Instructions Manual, Manual, Instruction Manual Rheem 12EARJR Installation Instructions Manual (40 pages) Brand: Rheem | Category: Furnace | Size: 1.55 MB, Rheem 62-23543-05 - Flame Sensor Replacement, 62-23543-05- Flame Sensor Fits Rheem Furnaces with model number: RGGD with Gas Code ER, FH, or FK RGTK with Gas Code GM, or GL RGJD with Gas Code FK Gas Code is also the first two digits of the serial number. Free shipping on orders over $99 Your Zip ..., i have a rheem gas furnace mod.#RGLH-07EAUER. the furnace ignites,stays on for about 5 minutes,then shuts off. the 2 green lites on the board stay on but the yellow lite marked flame goes out. i checked the grounds for continuity,they were good. i then cleaned the the flame sensor then restarted. in 5 minutes the same …, Rheem 62-23543-02 - Flame Sensor, 62-23543-02- Flame Sensor Features: Length - Mounting Flange to Sensor Tip (in.): 2-1/16 Length - Sensor Offset (in.): 1-13/16 Angle ..., Summary of Contents for Rheem rgph-10eamer. Page 1 Annual Fuel Utilization Efficiency - A variety of cooling coils and plenums designed to use with THIS MODEL 80.0% Rheem Criterion II gas furnaces are available as optional HIGH accessories. These furnaces can be installed in an upflow position or laid on either side in a horizontal position., 26 Jan 2022 ... What is the Flame Sensor The flame sensor senses the flame to ensure the furnace has fired. If there is a gas valve open but the furnace ..., Attempting to install the incorrect part voids the return coverage. If you are not completely sure your order is correct please give us a call at 888-757-4774. Rheem 62-24164-01 - Direct Spark Ignitor w/ 35" Lead Wire, 62-24164-01- 62-24164-01 is an official OEM Direct Spark Ignitor w/ 35" Lead Wire for Rheem HVAC equipment., I told some people that i would put a video of my Rheem Criterion 2 furnace up so this is it. It's not the best lighting but its the best i could do for now...., 2 Packs Flame Sensor Igniter Sensing Rod Fit Replacement of 62-24164-01 Model for Rheem Furnace and 232258 2-Prong Electrode Assembly, Fire Pit Spark with 31.5" High Temperature Cable Wire. 17. $1888. FREE delivery Sat, Mar 23 on $35 of items shipped by Amazon. Or fastest delivery Fri, Mar 22. , THIS MODEL. 80.0% MID. 78% 82% 88% HIGH. 97% CRITERION ® II. 80.0-82.2% A.F.U.E. . DOWNFLOW. GAS FURNACES. II line of downflow gas furnaces is The …, Janitrol furnaces are known for their reliability and efficiency. However, like any other heating system, they can experience issues over time. One common problem that homeowners o..., Flame Sensor. IMPORTANT: Heating, ventilation, air conditioning or refrigeration parts and accessories should only be installed by qualified technicians. Failure to understand and follow the manufacturer’s installation and use instructions may result in fire or explosion, electric shock, property damage, injury or loss of life., Quck answer To clean the flame sensor on Rheem heaters, follow these steps: 1. Turn off the power to the heater and wait for it to cool down. 2. Locate the flame sensor, which is usually a metal rod near the burner assembly. 3. Remove the sensor by unscrewing it from its bracket. 4. Gently, I have a Rheem Criterion 2 furnace the two green lights inside say solid but the orange light which I think it's a flame light lashes and looks weak sometimes I replace the flame sensor and the flame ... Replaced flame sensor, it did not appear bad and it still does not stay lit. 120v coming to board, ..., 30 Nov 2016 ... In this HVAC video, we go over the Testing of the Flame Sensor and Step by Step Troubleshooting Processes of the Flame Rectification Process ..., Ignitors & Sensors,Ignitors & Sensors. Rheem Manufacturing ranks as the global leader in the manufacture of high-quality, sustainable, and innovative water heaters, tankless water heaters, air conditioners, furnaces, pool heaters, and HVAC systems for residential and commercial applications, and is a full member of AHRI, the Air-Conditioning, Heating, & Refrigeration Institute., Them criterion 2 Furnace cycles on and ignites for around 4-5 seconds then turns off. Replaced flame sensor, it did not appear bad and it still does not stay lit. 120v coming to board, 27v coming out … read more, Kit includes: flame rod/sensor, gasket and mounting hardware; For use on rheem advantage plus water heaters; Genuine OEM replacement kit; 1 year limited warranty; Made of durable ceramic and metal; Prepackaged for your convenience; Senses flame to ensure proper operation; Easy to install; Call 1-800-432-8373 to ensure this is the correct part ..., Gas and Oil Home Heating Furnaces - Rheem flame sensor - I have a Rheem Criterion II, Plus 2 furnace. It is barely a year old. The flame sensor needs to be cleaned every few days. The place I bought it it from says there is no cure for the flame sensor problem. Even if they installed a new one it would still have the, It’s part # 62-21744-01. But the current flame sensor (looks like a generic replacement) that is wired in but due to be replaced has two wires coming out of it. One connects to a red wire and one connects to a white/grey/yellowed wire. This seems inconsistent with the replacement part. Also most flame sensors seem to only have one …, I have a Rheem Criterion 2 furnace the two green lights inside say solid but the orange light which I think it's a flame light lashes and looks weak sometimes I replace the flame sensor and the flame ... blowers work and even after gas shuts off main blower comes on and stays on. flame sensor works as its not on without flame an ..., Limit Control Switches,Limit Control Switches. Rheem Manufacturing ranks as the global leader in the manufacture of high-quality, sustainable, and innovative water heaters, tankless water heaters, air conditioners, furnaces, pool heaters, and HVAC systems for residential and commercial applications, and is a full member of AHRI, the Air …, You can also view RGLH-10AMER parts diagrams and manuals, watch related videos or review common problems that may help answer your questions to get started on fixing your Furnace model. For additional assistance, please contact our customer service number at 1-800-269-2609, 24 hours a day, seven days a week or send us a message using the live ..., GUANGZHOU, China, Aug. 2, 2022 /PRNewswire/ -- Yatsen Holding Limited ('Yatsen' or the 'Company') (NYSE: YSG), a leading Chinese beauty company, t... GUANGZHOU, China, Aug. 2, 2022..., I have a Rheem Criterion II furnace that recently will sometimes work fine and other times the flame will kick on and heat up, then when the blower kicks on after about 5 seconds the flame goes off and the blower keeps going. The flame kicks on about 3-4 times every minute or so and after the 4th unsuccessful try the blower finally turns off too., To start, I have a Rheem Criterion 2 gas furnace with a ceramic igniter. Okay, so last month my heater started acting up. Its flame would ignite, but the flame would go out from anywhere between 10-60 seconds. I asked a HVAC technician acquaintance of mine what I should do, and he said it may be the flame sensor. I replaced the flame sensor.