Lennox icomfort thermostat 10f81 white screen - Apr 27, 2022 · My thermostat ( Lennox iComfort wi-fi catalog #10F8, part # 103445-04) is having screen issues. The screen goes to a grey color and you have no access to controls several times a day. What is the repl …

 
I have a Lennox icomfort thermostat model 10F81. The screen is white but the system is still operable through my WiFi connection on my phone. The dealer I spoke with quoted $998 to replace it. Are the … read more. Lottery ticket 3 letter codes

Apr 14, 2024 · Call or text 888-757-4774. +. Lennox 19V30 - iComfort S30 Ultra Smart Programmable Thermostat, 19V30- The iComfort® S30 Ultra-Smart thermostat recognizes and connects to all iComfort® Communicating products to automatically configure and control the heating/cooling system (based on user-specified settings) for the highest level of comfort ... This model thermostat came out before the Lennox 10F81 iComfort Wi-Fi thermostat. The only difference between this thermostat and the 10F81 is that this thermostat does not have Wi-Fi and does not work with separate zone controls. If your current Lennox 10F81 has the option to switch between zones then this thermostat will not be a good fit for ...I am having an issue (white screen) with my Lennox 10F81 icomfort thermostat i do not want to switch to a live phone call, thank y ou. HVAC Technician: airheatman. OK if the screen is white, you have lost …My Lennox iComfort thermostat 10F81 has died (white screen), and needs replacing. ... Lennox Thermostat 10F81 - white screen, app and unit still work and respond to app changes. The thermostat is wired and has power and been installed for several years without issue, ...If you have an old Android phone sitting around collecting dust, and you've been pining for smart thermostat but don't want to drop the cash on one, then the Android Thermostat mig...UPDATE: Lennox has discontinued manufacturing this model and is now replacing them with the newer s30 version, which appears to be a vast improvement. If you...Resources for the iComfort Wi-Fi and iComfort S30 Thermostats, including product registration, app support, and owner literature. About SustainabilityWhite Rodgers thermostats are known for their reliability and performance, offering homeowners the ability to control their indoor temperature with ease. Before diving into the spe...This Lennox iComfort WiFi thermostat, model 10F81, is a programmable device that allows you to control your heating and cooling system through Wi-Fi, app control, digital interface, and touch. While the screen may be whited out, this device can be used for parts or repair purposes. I am the original owner and it was working fine until the screen …My Lennox iComfort thermostat 10F81 has died (white screen), and needs replacing. My landlord doesn't want to replace it with the new S30 screen due to the price and wants me to look into an Ecobee or …With our iComfort ® Smart Thermostat lineup, we combine Lennox’s innovation with the latest technology to give you more home comfort control and energy savings than ever before. iComfort ® S30 Ultra Smart Thermostat. The ultimate controller for precise comfort. iComfort ® E30 Smart Thermostat. The most versatile thermostat for your comfort ...My Lennox iComfort thermostat 10F81 has died (white screen), and needs replacing. ... Lennox Thermostat 10F81 - white screen, app and unit still work and respond to app changes. The thermostat is wired and has power and been installed for several years without issue, ...When the thermostat goes bad in a Honda CRV, you risk causing serious damage to the engine if you do not replace it. Replacing the thermostat is much cheaper and easier then replac...The iComfort S30 replaces the old white iComfort thermostat. It is $$$ but you lose efficiency and diagnostic info remoing the communication ability with a thermostat. ... Possible fix for iComfort 10F81 thermostat that is losing date / time or has a blank screen. The Lennox iComfort 10F81 thermostat does not have a battery. It uses a super ... I called to there service center multiple times because I have heard from at least 10 users and they all have same issue. Company doesn’t give a crap about it. Based on my research u cannot install just a normal thermostat because lennox have proprietary communication protocol that only understand by its own thermostat. Here's what I found out just yesterday from a repair guy (of this model Lennox 10F81). "The screen repair will only solve LCD burn problems, so if the display is white or black or …Here's what I found out just yesterday from a repair guy (of this model Lennox 10F81). "The screen repair will only solve LCD burn problems, so if the display is white or black or …Use the 1. From the home screen, touch the Lennox logo (bottom right-hand following procedure to discover the Wi-FI router signal strength at the corner of screen) and hold …A blank screen on a Lennox thermostat usually means that there is no power going to the thermostat or you have a failed thermostat. However it’s hard to …Active monitoring means you stay comfortable. The iComfort S30 preserves comfort and peace of mind by actively monitoring system operations. Should any problem ever arise with your HVAC system, you and your dealer will be notified. Indicates when there's a problem that needs immediate attention. Lets you know when your filter needs to be changed.Find many great new & used options and get the best deals for Lennox 10F81 iComfort Wi-Fi Programmable Touchscreen Thermostat 7in. at the best online prices at eBay! Free shipping for many products! ... Lennox Icomfort Thermostat Review. ... It was always on for 6 years at about 80% screen display intensity. When I tried to take the dark ...Lennox iComfort 10f81 crashed (white screen) ... This thermostat crashed and the user doesn’t really use the app to its potential. Is it possible to replace with a basic Comfortsense 7500 non-wifi? The wiring scheme for the 10f81 is C, I-, I+, R and the instructions on the 7500 give no direction on how the replacement wiring need to be placedFor sale is a refurbished Lennox iComfort WI-FI 10F81 thermostat that is fully working and has been factory reset so it is ready to pair with your existing HVAC equipment. This thermostat is compatible with Lennox 88W58 and Allied Air Comfort Sync 1.841197 thermostats. Every refurbished thermostat has been throughly tested to ensure 100% ...May 3, 2023 · @burtone I have iComfort 10f81, it started to show lines and gradually has become blank screen. My app also lost connection, when I tried to reseat the thermostat. I thought of replacing capacitor before spending on new thermostat. Looks like my thermostat has different capacitors. Features added. Google Assistant integration. IFTTT integration. Amazon Alexa support for Canada. Picture Upload (iComfort ® S30 and E30) Ventilation control (iComfort ® S30 and E30)Lennox (NYSE: LII) is a leader in energy-efficient climate-control solutions. Dedicated to sustainability and creating comfortable and healthier environments for our residential and commercial customers while reducing their carbon footprint, we lead the field in innovation with our cooling, heating, indoor air quality, and refrigeration systems.From the home screen, touch the Lennox logo and hold for 5 seconds. A message screen stating “qualified Lennox equipment installers only” warning screen will appear. Touch the “reset” button. The thermostat will reboot itself. The screen will go blank for about three seconds.Remote Capability. Monitor and adjust temperatures and schedules from anywhere in the world using the iComfort App and your smartphone, tablet or other web-enabled device. Precise Comfort® Plus. Works with Lennox-brand digital variable-capacity equipment to offer the highest level of comfort and overall system performance. Weather-On-Demand.SKU: 10F81. ( 0) Q&A: ( 3) 10F81 has been discontinued. Discontinued November 3, 2019. This product was discontinued by the manufacturer. Suggested Alternative: iComfort …Simply select the desired Wi-Fi network and enter the password (if necessary). You can also manually add a Wi-Fi network by pressing the "Other" button. We recommend the following Wi-Fi routers for use with iComfort ®: Linksys, Netgear, Xfinity, Apple, D-Link, 2Wire, Actiontec, Cisco, Arris, Motorola, ASUS, AT&T, Belkin, Verizon.Communicating Programmable Thermostat, 7 Day, Multi-Stage, Touchscreen. Key Features: Easy to read touchscreen for quick adjustment. One-Touch Away mode for smarter operation after hours. Alerts and reminders for proactive system management. Remote access for convenient temperature control anywhere and anytime.PureAir S is an air purification system that works only with the iComfort S30 Ultra Smart Thermostat and cleans the air in your home by addressing all three types of indoor air pollutants an: Airborne particles (like pollen, dust and pet dander). Germs and bacteria. Chemical orders and vapors.iComfort Wi-Fi Programmable Thermostat, Communicating, Touchscreen, Mobile App Available . iComfort Wi-Fi Programmable Thermostat, Communicating, Touchscreen, Mobile App Available ... Compatible with Lennox' S-Class® and T-Class® air conditioners and heat pumps. Optional Equipment Interface Module compatible with most commercial …May 12, 2023 · Possible Causes for a lennox thermostat blank screen. Possible Cause. Fix. No power going to the thermostat. Check circuit breakers and switches. Lose wiring. Tighten an secure wires on thermostat. Thermostat not receiving power from transformer. Test the ends of C and R wires for continuity. Active monitoring means you stay comfortable. The iComfort S30 preserves comfort and peace of mind by actively monitoring system operations. Should any problem ever arise with your HVAC system, you and your dealer will be notified. Indicates when there's a problem that needs immediate attention. Lets you know when your filter needs to be changed.The iComfort Wi-Fi ® thermostat can make your home feel warm in more ways than one. It gives you the option of uploading a personal photo to use as a screensaver. Choose a family snapshot or a photo to complement your décor. “I like the ability to program our heating and cooling from anywhere in the world. It also gives me current weather ...Not only is the Lennox S40 Smart Thermostat part of the Dave Lennox Signature® Collection, it’s part of the Ultimate Comfort System ™.This combines the best of everything Lennox has to offer to create an unprecedented whole-home comfort system that seamlessly and intelligently works together to stay finely tuned to your home and deliver consistently clean, perfect air.My thermostat ( Lennox iComfort wi-fi catalog #10F8, part # 103445-04) is having screen issues. The screen goes to a grey color and you have no access to controls several times a day. What is the repl …This section contains various Lennox Thermostats. Free shipping on orders over $99 ... iComfort S40 Ultra Smart Programmable Thermostat, 22V24. ... 7 Day Programmable ComfortSense 7500 Commercial Thermostat (4 Heat/2 Cool), 17G74. Red link also has a server that you can purchase set up a Honeywell account and look at your place remotely. If you would have to pay somebody to do that, then it might be best just to stick with the Lennox communicating thermostat replacement. If you went with the Honeywell Redlink, at least you would have a simpler control. 1. My Lennox iComfort thermostat 10F81 has died (white screen), and needs replacing. ... I have a Lennox icomfort thermostat model 10F81. The screen is white but the system is still operable through my WiFi connection on my phone. The dealer I spoke with quoted $998 to replace it.Circuit Breaker Flip-Flop. If neither of the above methods work, turn your thermostat to the ‘off’ position. Then go to your home’s circuit breaker box. Locate the breaker for your HVAC system, then flip it to the ‘off’ position. Wait a total of 30 seconds, then flip the breaker back to the ‘on’ position. Return to your thermostat ...This Lennox iComfort WiFi thermostat, model 10F81, is a programmable device that allows you to control your heating and cooling system through Wi-Fi, app control, digital interface, and touch. While the screen may be whited out, this device can be used for parts or repair purposes. I am the original owner and it was working fine until the screen whited out. Add $10.95 shipping.If you have an old Android phone sitting around collecting dust, and you've been pining for smart thermostat but don't want to drop the cash on one, then the Android Thermostat mig...This thermostat crashed and the user doesn’t really use the app to its potential. Is it possible to replace with a basic Comfortsense 7500 non-wifi? The wiring scheme for the 10f81 is C, I-, I+, R and the instructions on the 7500 give no direction on how the replacement wiring need to be placed.Here's what I found out just yesterday from a repair guy (of this model Lennox 10F81). "The screen repair will only solve LCD burn problems, so if the display is white or black or white with lines, then the circuit board needs to be repaired." That circuit board repair process is not always successful - even by an experienced person. BTW.I have an iComfort S30 which has a screen lock Displaying the following message " Thermostat cannot communicate with SmartHub". However, both my iphone app and the background screen on the s30 indicate the thermostat is working fine.Features added. Google Assistant integration. IFTTT integration. Amazon Alexa support for Canada. Picture Upload (iComfort ® S30 and E30) Ventilation control (iComfort ® S30 and E30)Lowering the temperature of your thermostat can do more than reduce your energy bill (although we think that benefit is so awesome that it still made the list). Dropping temps just...iComfort® S30 Ultra Smart Thermostat. Feature. iComfort® E30 Smart Thermostat. iComfort® M30 Smart Thermostat. iComfort® Wi-Fi Touchscreen Thermostat. ComfortSense® 7500 Series. ComfortSense® 5500 Series.A blank screen on a Lennox thermostat usually means that there is no power going to the thermostat or you have a failed thermostat. However it’s hard to conclude the cause of this problem before any troubleshooting steps is performed to establish the root cause for this.I have a 10f81 lennox thermostat that has a white screen. I see that lennox dis continue them. what can I replace it with, ... My Lennox iComfort thermostat 10F81 has died (white screen), and needs replacing. My landlord doesn't want to replace it with the new S30 screen due to the price and wants me to look into an Ecobee or ...Red link also has a server that you can purchase set up a Honeywell account and look at your place remotely. If you would have to pay somebody to do that, then it might be best just to stick with the Lennox communicating thermostat replacement. If you went with the Honeywell Redlink, at least you would have a simpler control. 1.Subscribed. 250. 60K views 3 years ago. UPDATE: Lennox has discontinued manufacturing this model and is now replacing them with the newer s30 version, which …The White Rodgers 1F80-361 is a popular thermostat model that allows homeowners to effectively control their heating and cooling systems. However, understanding the manual can some...©2017 Lennox Industries Inc. Dallas, Texas, USA iComfort Wi-Fi® Web and Mobile Apps iComfort Wi-Fi® Thermostat THIS MANUAL MUST BE LEFT WITH THE HOMEOWNER FOR FUTURE REFERENCE NOTICE Use this thermostat only as described in this manual. HOMEOWNER'S MANUAL iComfort Wi-Fi®Thermostat Touch-Screen …I have a Lennox icomfort thermostat model 10F81. The screen is white but the system is still operable through my WiFi connection on my phone. The dealer I spoke with quoted $998 to replace it. Are the … read moreFrom https://www.justanswer.com/ythiJustAnswer Customer: replacing iComfort 10f81 thermostat, 4 wires C, i-, i+, RPearl Wilson: Assistant: Have you replaced ...6 Seal wire hole in wall to prevent cold or hot air from affecting temperature sensor in display. IMPORTANT Seal wire hole in wall to prevent cold or hot air from affecting temperatureI have a Lennox I comfort and the thermostat screen is white. I tested the wires and the red is the only one that is showing any voltage. The heat pump and heat still seem to be working, but the scree … read moreMar 24, 2021 · My thermostat ( Lennox iComfort wi-fi catalog #10F8, part # 103445-04) is having screen issues. The screen goes to a grey color and you have no access to controls several times a day. What is the repl … Others have reported an all-white screen, lines or odd colors, and since failing capacitors are a common cause of malfunctioning electronics you may have luck with this fix with those types of issues.Lennox 12U67 iComfort S30 Ultra Smart Programmable Thermostat, Geo-Fencing, ... Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready, C-Wire Required, Not Compatible with Line Volt Heating Gray ... Playhardest Honeywell TH9320WF5003 Wi-Fi …Allows you to save energy, without sacrificing comfort. Like most thermostats, the ComfortSense ® 7500 gives you the option of programming a setback temperature that allows you to save energy when you’re gone for the day. A key difference is that ComfortSense 7500 steps up performance before you step through the door upon your return home.Its the original thermostat from around 10 years ago or so. iComfort 10f81 screen went white on me. Contractor's Assistant: How long has this been going on with your LENNOX thermostat? What have you tried so far? ... My Lennox iComfort thermostat 10F81 has died (white screen), and needs replacing.Discover the many benefits of Lennox's new iComfort Wi-Fi Thermostat. Experience unparalleled comfort and convenience with this cutting edge solution. For mo...2. An add iComfort pop-up window will appear on the screen. Enter your PIN number which was generated by the thermostat and press add. Then you will be asked to verify your home address.. 3. When the mobile app has successfully synched to your iComfort thermostat, you will see the horseshoe-shaped temperature control screen. Step 4: Opt-in to ...25 Apr 2013 ... ... Homestore New 21K views · 4:08 · Go to channel · Blank Lennox iComfort 10F81? Here are 3 FAST solutions! YF •12K views · 2:18 &middo...Lennox IComfort S30 Blank Screen Troubleshooting. Lennox Thermostat Blank Screen . If you have a Lennox thermostat and the screen is blank, there are a few possible explanations. First, check to make sure that the thermostat is turned on. If it is, then the next step is to check the batteries. ... Lennox Icomfort 10F81 Thermostat …26 Nov 2023 ... I am replacing a failing iComfort Wi-Fi 10F81 thermostat with a newer Lennox iComfort S30. I have the SLP98V Furnace which I heard is a ...Resources for the iComfort Wi-Fi and iComfort S30 Thermostats, including product registration, app support, and owner literature. About SustainabilityMy thermostat ( Lennox iComfort wi-fi catalog #10F8, part # 103445-04) is having screen issues. The screen goes to a grey color and you have no access to controls several times a day. What is the repl …6 Seal wire hole in wall to prevent cold or hot air from affecting temperature sensor in display. IMPORTANT Seal wire hole in wall to prevent cold or hot air from affecting temperatureHere's what I found out just yesterday from a repair guy (of this model Lennox 10F81). "The screen repair will only solve LCD burn problems, so if the display is white or black or white with lines, then the circuit board needs to be repaired." That circuit board repair process is not always successful - even by an experienced person. BTW.Alert Code 10. A Lennox iComfort Thermostat not in configuration mode has been discovered by an unknown device. In such situations, you must reset the system and clear the code, you should press the logo of the lennox. You can visit the dealer control center, select your equipment, and click ‘reset all equipment.’.Lennox iComfort wi-fi 10F81. For a few months. Online for now - Answered by a verified HVAC Technician ... I have a 10f81 lennox thermostat that has a white screen. ... I have a Lennox IComfort Wi-Fi Thermostat (10F81) where the screen comes on periodically after reconnecting, the flashes a bit and goes blank ...My Lennox iComfort thermostat 10F81 has died (white screen), and needs replacing. ... I have a Lennox icomfort thermostat model 10F81. The screen is white but the system is still operable through my WiFi connection on my phone. The dealer I spoke with quoted $998 to replace it.Resources for the iComfort Wi-Fi and iComfort S30 Thermostats, including product registration, app support, and owner literature. About SustainabilityProblems with iComfort 10F81 thermostat screen. it is a Lennox part number 103445-04, 5 years old, Just this week. ... My thermostat ( Lennox iComfort wi-fi catalog #10F8, part # 103445-04) is having screen issues. ... I unmounted my icomfort wifi thermostat and when I remounted the thermostsat the screen is white, after a while it …If your Lennox thermostat screen suddenly goes blank, the batteries might be low. So, you may need to replace the batteries to fix the problem. Follow the steps below to change your Lennox thermostat batteries: Unmount your Lennox thermostat from the wall by carefully pulling it out of its wall plate.Honeywell TH9320WF5003 Wi-Fi 9000 Color Touch Screen Programmable Thermostat, 3.5 x 4.5 Inch, White, 'Requires C Wire" (Renewed) $129.99 & FREE Shipping (134) Works and looks like new and backed by the Amazon Renewed GuaranteeJun 9, 2021 · My Lennox iComfort thermostat 10F81 has died (white screen), and needs replacing. My landlord doesn't want to replace it with the new S30 screen due to the price and wants me to look into an Ecobee or Nest. The system is a full HVAC with connectors C, i-, i+ and R. Others have reported an all-white screen, lines or odd colors, and since failing capacitors are a common cause of malfunctioning electronics you may have luck with this fix with those types of issues. A physically damaged or badly burned-in screen will require a new display panel, around $80 on eBay.item 2 Lennox iComfort WIFI Thermostat 10F81 Used, App - compatible & touch screen Lennox iComfort WIFI Thermostat 10F81 Used, App - compatible & touch screen $149.99 0 bids 43m 9s item 3 Lennox 10F81 - iComfort WiFi Thermostat Lennox 10F81 - iComfort WiFi ThermostatPossible fix for iComfort 10F81 thermostat that is losing date / time or has a blank screen. The Lennox iComfort 10F81 thermostat does not have a battery. It uses a super capacitor. (5.5v 1.5F H type button style) as a battery to hold the date / time. I had this symptom at first then got the blank screen like a lot of people who have this ...The screen is white but the system is still operable through my WiFi connection on my phone. The dealer I spoke with quoted $998 to replace it. Are there any less expensive alternatives? Contractor's Assistant: Have you replaced your Lennox thermostat or parts of it before? If so, how long ago? No. It is original and about one year out of warranty.

From https://www.justanswer.com/ythiJustAnswer Customer from San Antonio, TX: My IComfort Lenox wifi thermostat screen is blankPearl Wilson: Assistant: Do yo.... Mcdonalds poynette wi

lennox icomfort thermostat 10f81 white screen

Optimizes performance when installed with a premium Lennox system. Precise Comfort Plus holds a temperature to within 0.5 degrees or less, when paired with a Lennox modulating furnace. Reliable Performance. Automatic system set up reduces installation and its set-up time.*. Automatic self testing to guarantee perfect installation every time.*.my lennox icomfort thermostat screen has gone blank. A/C is not running. Removed and reinstalled thermostat a few times. No joy. Flipped air handler breaker off then on and after a few minutes the thermostat screen lit up and A/C turned on. Another few minutes later thermostat went blank again and no A/C again. Tried cycling …Apr 13, 2021 · My Lennox iComfort thermostat 10F81 has died (white screen), and needs replacing. My landlord doesn't want to replace it with the new S30 screen due to the price and wants me to look into an Ecobee or … read more The iComfort Wi-Fi® Thermostat recognizes and connects to all iComfort®-enabled products to automatically configure and control the heating/cooling system (based on user-specified settings) for the highest level of comfort, performance and eficiency. Also recognizes model and serial number information for iComfort®-enabled products to ...Amazon.com: lennox icomfort thermostat. ... Honeywell TH9320WF5003 Wi-Fi 9000 Color Touch Screen Programmable Thermostat, 3.5 x 4.5 Inch, White, 'Requires C Wire" 4.4 out of 5 stars 3,255. ... lennox 10f81 Need help? Visit the help section or contact us. Go back to filtering menu ...I have a Lennox Icomfort Thermostat 10f81. Woke up to a LCD white screen yesterday. The LCD came back twice and is now just a white screen. ... Lennox Thermostat 10F81 - white screen, app and unit still work and respond to app changes. The thermostat is wired and has power and been installed for several years without issue, ...Lennox 10F81 iComfort WiFi Thermostat LCD Screen Replacement Guide & Display Issue Diagnose. In this video, I show you my steps on disassembling the Lennox 10F81 thermostat, which...From https://www.justanswer.com/ythiJustAnswer Customer from San Antonio, TX: My IComfort Lenox wifi thermostat screen is blankPearl Wilson: Assistant: Do yo...UPDATE – The replacement thermostat is now failing after 3 years. Here's the update video: https://youtu.be/9KYsOnb0uvoAfter 3 years of very light use, the s...From https://www.justanswer.com/ythiJustAnswer Customer from San Antonio, TX: My Lennox iComfort thermostat screen has gone blank.JustAnswer Customer from Sa...From https://www.justanswer.com/ythiJustAnswer Customer from San Antonio, TX: My Lennox iComfort thermostat screen has gone blank.JustAnswer Customer from Sa... Remote Capability. Monitor and adjust temperatures and schedules from anywhere in the world using the iComfort App and your smartphone, tablet or other web-enabled device. Precise Comfort® Plus. Works with Lennox-brand digital variable-capacity equipment to offer the highest level of comfort and overall system performance. Weather-On-Demand. This model thermostat came out before the Lennox 10F81 iComfort Wi-Fi thermostat. The only difference between this thermostat and the 10F81 is that this thermostat does not have Wi-Fi and does not work with separate zone controls. If your current Lennox 10F81 has the option to switch between zones then this thermostat will not be a good fit for ...My thermostat ( Lennox iComfort wi-fi catalog #10F8, part # 103445-04) is having screen issues. The screen goes to a grey color and you have no access to controls several times a day. What is the repl …Knicks iComfort 10F81 Thermostat Blank Screen Fix. To diagnose this issuing, you’ll need to check the harness terminal and test the leistung on the thermostat wires. ... In final, a blank screen set your Lennox iComfort thermostat can become a frustrating issue, when i pot often remain resolved by following the stages describe in this …Features added. Google Assistant integration. IFTTT integration. Amazon Alexa support for Canada. Picture Upload (iComfort ® S30 and E30) Ventilation control (iComfort ® S30 and E30)This thermostat crashed and the user doesn’t really use the app to its potential. Is it possible to replace with a basic Comfortsense 7500 non-wifi? The wiring scheme for the 10f81 is C, I-, I+, R and the instructions on the 7500 give no direction on how the replacement wiring need to be placed.Not all Lennox thermostats have batteries. This is dependent on the model and whether batteries are required for it to function properly. Most of them are connected to the building’s main power supply, but some need batteries to operate probably. You can check the model’s product description to know its power source.Possible fix for iComfort 10F81 thermostat that is losing date / time or has a blank screen. The Lennox iComfort 10F81 thermostat does not have a battery. It uses a super capacitor. (5.5v 1.5F H type button style) as a battery to hold the date / time. I had this symptom at first then got the blank screen like a lot of people who have this ....

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