Or is it something that’s going to cost you major bucks? 1 - ComfortSense ® 7500 , 7-day ... programmable touch screen thermostat. Lennox ComfortSense 7500 Manuals & User Guides. This is commonly due to restricted airflow because of broken or dirty parts in the HVAC system. Saving money is remarkably simple. PARTS HOTLINE(TOLL FREE) US : 866-215-3831CANADA: 913-825-6891, 13H13 - Comfortsense 5500 Touchscreen Thermostat, ComfortSense® 5500 SeriesTouchscreen ThermostatSleek and stylish control for conventional systemsThe Lennox ComfortSense line of programmable thermostats can help your customers manage their heating and cooling schedule, and their energy costs, without sacrificing comfort.Energy Efficiency• Programmable—7 Day or 5-Day/2 Day—versatile programming options offer custom comfort and energy savings• One-Touch Away Mode—turns down heating or cooling with one touch to save energy when no one is home• Energy Reports—show how often and how long the heating or cooling system has runHome Comfort• Automatic changeover—decides between heating and cooling operation, depending on indoor temperature• Smooth Setback Recovery—keeps the temperature in the home right where homeowners want it, when they want it by starting the heating or cooling up to 2 hours in advanceReliable Performance• Touchscreen display—large (4.3”), easy to use display with adjustable brightness• Customizable reminders—allow to set a series of service and parts replacement reminders which display on the home screen• Filter Reminder—reminds homeowner when it is time to change the filter• Conventional System—works with conventional 1 Heat / 1 Cool systems• Compatible with Lennox brand non-communicating equipment and most other brands of heating and cooling equipment, SpecificationsProduct Depth ......0.875 INProduct Height ......3.3125 INProduct Width ......4.3125 INType............ConventionalGross Weight............0.6 LBFamily............ComfortSenseChangeover............AutoHumidification Control............NoLennox Brand Comparison............13H13Program Type............7 DayCommunicates with Lennox............NoStages Quantity............1 Heat/1 CoolIntelligent Recovery............NoWiFi Remote Access............No, X2658 - LN MERIT Thermostat Outdoor Sensor. Purchased ComfortSense 7500 screen is blank does not come on Lennox thermostat Operating Guides and for. Contractor's Assistant: I'll do all I can to help. The thermostat may be used to control either a convention- al HVAC system which includes an out-door condensing unit and indoor fur-nace or a heat pump unit and indoor air handler. Lennox ComfortSense™ 7000). Here are some of the most common reasons why your thermostat screen might be blank – as well as ways to fix it. $1,199.99. The ability to limit setpoint adjustment and customize information on the screen provides added flexibility. The Lennox ComfortSense 5000 Series L5732U programmable touch screen thermostat provides control for up to three stages of heating and two stages of cooling.

Accessories:

Local company replaced the unit. ComfortSense ® 7500 Thermostat 3 ... multi‐stage programmable touch screen thermostat. If it’s blown, you have to replace it. Maybe your whole HVAC system is broken, and you’re going to need to replace it all! If you have a blank thermostat screen, there may be a simple solution to your problem. The ComfortSense® 5500 Series thermostat is an electronic 7-day, single-stage, programmable, touchscreen thermostat. Not close to entrance or automatic doors Not close to heat generating equipment such as kitchen equipment Not in an enclose environment unless a remote indoor sensor is used. Sleek and stylish control for conventional systems. ComfortSense 5500 Series Touchscreen Thermostat Sleek and stylish control for conventional systems The Lennox ComfortSense line of programmable thermostats can help your customers manage their heating and cooling schedule, and their energy costs, without sacrificing comfort. Refer to your manual to see if you need to reset the float switch. Versatile programming options offer custom comfort and energy savings. Shop at eBay.com … If your screen goes blank after several minutes of heating, it could be because the high-limit switch is tripping. $44.99. This is commonly due to restricted airflow because of broken or dirty parts in the HVAC system. Smart thermostats like the Nest use the wires connecting the heating and cooling system to recharge. New Lennox Programmable Touchscreen Smart Wi-Fi Thermostat iComfort M30 15Z69. Lennox T7300 Thermostats Troubleshooting. It has now been 4 weeks and the thermostat is not able to maintain correct temperature when it is cold (70degrees of below). Locate Your Furnace Model and Serials Numbers, 13H14 - Comfortsense 7500 Touchscreen Programmable, 17G75 - CS8500 ComfortSense 8500 Commercial Programmable Thermostat, Non-Zoning, 17G74 - Comfortsense 7500 Commercial Thermostat, Y7009 - Honeywell TH8321WF1001 VisionPRO 8000 Programmable Thermostat, 7 Day, Touchscreen, TH9320WF5003 - Honeywell WiFi 9000 Color Touchscreen Thermostat, 15Z69 - iComfort M30 Universal Smart Programmable, 10T50 - Interface Module For Icomfort WIFI. THERMOSTAT SETTINGS FOR WHEN YOU’RE ON VACATION, AC MAINTENANCE DIY TIPS TO SAVE MONEY THIS SUMMER, © 2020 Newcomb and Company Privacy Policy. ComfortSense 5500 thermostat pdf manual download. Any of these could cause a blank thermostat screen. In this instance, have your HVAC system checked by a technician. Features of the Lennox ComfortSense 5500 Touch Screen Smart Thermostat. Key attributes of Lennox 7500 include: A large touchscreen with adjustable brightness and simple display. .and more! ... Thermostat is stuck on the Lennox screen, unit will not turn on ... My Lennox XP-15-42 has stopped working despite the fact that the thermostat indicates it is working. Lennox furnaces are quality units; however, similar to other furnaces, after some time, they can encounter their share of issues due to normal wear and tear or a lack of regular care and maintenance.When this occurs, you may notice that your furnace just doesn’t perform how it used to. Only 1 left! I have read the manual. Enhanced Comfort and Energy Savings . The thermostat is designed for integration with Lennox® packaged rooftop units with the Prodigy® control system. Open your furnace control panel and check the connection between your thermostat wires. A failing fan motor can cause your electrical components to pull in more amperage than usual, tripping the high-limit switch.

ComfortSense® 5500 Series

Touchscreen Thermostat
Sleek and stylish control for conventional systems
The Lennox ComfortSense line of programmable thermostats can help your customers manage their heating and cooling schedule, and their energy costs, without sacrificing comfort.

Energy Efficiency
• Programmable—7 Day or 5-Day/2 Day—versatile programming options offer custom comfort and energy savings
• One-Touch Away Mode—turns down heating or cooling with one touch to save energy when no one is home
• Energy Reports—show how often and how long the heating or cooling system has run

Home Comfort
• Automatic changeover—decides between heating and cooling operation, depending on indoor temperature
• Smooth Setback Recovery—keeps the temperature in the home right where homeowners want it, when they want it by starting the heating or cooling up to 2 hours in advance

Reliable Performance
• Touchscreen display—large (4.3”), easy to use display with adjustable brightness
• Customizable reminders—allow to set a series of service and parts replacement reminders which display on the home screen
• Filter Reminder—reminds homeowner when it is time to change the filter
• Conventional System—works with conventional 1 Heat / 1 Cool systems
• Compatible with Lennox brand non-communicating equipment and most other brands of heating and cooling equipment

If so, the switch should be turned to the “on” position. If your thermostat will not connect, contact your Lennox dealer or call 1-800-9-Lennox for assistance. Don’t panic. During system discovery, the thermostat displays a message Thermo- stat is unable to communicate to system components. I cannot see how to delete the away setting and the home page does not present the menu. But if the battery drains down, you’ll see a blank thermostat screen (or possibly a blinking light) as it recharges. Most thermostats need a 24 VAC power supply. Lennox ComfortSense 5500 Series Thermostat Brochure. Symptom Possible Cause Action; Display does not come on. Lennox solves that problem with theComfortSense 5500 The ComfortSense® 5500 Thermostat makes programming an energy-saving schedule remarkably easy. All Rights Reserved. If you need HVAC repair in Raleigh or Wilmington, Newcomb and Company is here for you. No breakers are tripped. One-Touch Away Mode makes it easy to take control of your … Try changing the batteries. System Compatibility : Works with most HVAC system types: Programmable. Elite series (16 pages) ... Comfortsense 7000 series touch screen programmable thermostat (15 pages) Thermostat Lennox iHarmony 17A30 Installation And Setup Manual. Watch . Lennox Comfortsense 7000 LCD Touch Screen Thermostat Y20B1 101619-02. Than a year old. User Manuals, Guides and Specifications for your Lennox ComfortSense 7500 Thermostat. Designed with a beautiful 4.3†touchscreen display with large font and adjustable brightness, you can see your temperature from across the room. - Verify the indoor unit has a icomfort communicating control. If the circuit breaker trips, you’ll see a blank thermostat screen. A key difference is that ComfortSense 5500 steps up performance before you step through the door upon your return home. COMFORT YOUR WAY When paired … Contractor's Assistant: I'll do all I can to help. Hot or cold air from ducts. Not only does this work with most HVAC systems, it also boasts a 5-year warranty! If you blow a fuse on the furnace control board, your thermostat won’t work properly. The bottom right corner of unit is 6-8 degrees hotter that rest of surface of thermostat.

X2658 - LN MERIT Thermostat Outdoor Sensor

. How long have you been dealing with this? See your Lennox Dealer for details. Lennox ComfortSense™ 7000). ComfortSense 7500 and 5500 thermostats come with a 5-year limited warranty and the ComfortSense 3000 thermostat comes with a 2-year limited warranty. You must register the product from the thermostat itself before gaining access to the myicomfort.com website. ComfortSense® 5500 Series. * inside 0 heat-to cool-to e l 70º 7 º ComfortSense 7500 and 5500 thermostats ComfortSense 3000 thermostat *Subject to credit approval. A failing fan motor can cause your electrical components to pull in more amperage than usual, tripping the high-limit switch. Smooth Setback Recovery. I have a Lennox ComfortSense 7500 (13H14). We bought the house 1 1/2 years ago. Like most thermostats, the ComfortSense® 5500 gives you the option of programming a setback temperature that allows you to save energy when you’re gone for the day. View and Download Lennox ComfortSense 5500 user manual online. Your Lennox thermostat can run into simple problems related to battery issues and improper settings, so conduct a few troubleshooting steps before calling a repair technician. The ComfortSense 8500 Commercial Programmable Thermostat from Lennox offers advanced control for any commercial HVAC system. Check out our HVAC Maintenence Plan or Emergency Services if you need help with your HVAC unit. Customizable settings for every day of the week allow you to control your heating and cooling around your family’s schedule. Database contains 1 Lennox ComfortSense 5000 Series Manuals (available for free online viewing or … Thermostats from Wiser Air, for example, require a C terminal, so you might need a special wire extender. This could cause a blank thermostat screen. Some thermostats require battery power, and if the battery dies, your screen will go blank. Simply reset the circuit breaker and see if that solves the problem. Thermostat Lennox ComfortSense 5500 User Manual. ComfortSense® 5500 Series Touchscreen Thermostat Sleek and stylish control for conventional systems The Lennox ComfortSense line of programmable thermostats can help your customers manage their heating and cooling schedule, and their energy costs, without sacrificing comfort. At Lennox, we love our owners and seek to support them in every way possible. Lennox ComfortSense 5500 Manuals & User Guides. Senses extreme temperature changes and begins the temperature recovery … Contractor's Assistant: Do you plan on doing the work yourself? COMFORTSENSE 7500 COMFORTSENSE 5500 COMFORTSENSE 3000 Lennox crée un thermostat pour tous les besoins. Take this time at home and knock out some home improvement tasks! Also, if a power loss occurs, themenu-driven touch-screen display. Do not install the thermostat where it can be affected by: Drafts or dead spots behind doors and in corners. 2008 Lennox Industries Inc. Dallas, Texas, USA COOLING TUE OCT 23 1:15PM Tabbed user interface with touch screen interaction Humidification measurement and control White backlighted screen with adjustable brightness Programmable or non−programmable options Equipment maintenance reminders Automatically changes between heating cooling HOMEOWNER’S MANUAL ComfortSense 7000 Series … Lennox furnaces are quality units; however, similar to other furnaces, after some time, they can encounter their share of issues due to normal wear and tear or a lack of regular care and maintenance.When this occurs, you may notice that your furnace just doesn’t perform how it used to. If you’ve tried rebooting the thermostat and changing the batteries, don’t forget to check the drain pan. 3 new & refurbished from … So you stay comfortable and energy smart. Is there faulty wiring somewhere? Your dealer will need to assist you with the first step of the registration process. Replace the icomfort thermostat with a conventional thermostat that has a dual fuel control mode (e.g. That’s why for people who want more features for less budget would be interested in Lennox ComfortSense 7500. If your drip pan fills up, it can activate a float switch which will cut power to your HVAC system. Many programmable thermostats allow you to change the brightness setting. Get great deals on LENNOX Home Central AC & Heater HVAC Thermostats. My Lennox comfortSense 7500 is not working. Clean the battery contacts with a pencil eraser and gently pry out the spring contact so you get the best connection. Color Touchscreen Programmable Thermostat. How do I enable my wireless connection to work with the iComfort Wi-Fi thermostat? Solving simple problems related to programmable Lennox thermostats, such as Lennox's Elite … $8.86 shipping. Images are for illustration, products subject to manufacturer revision. 3. A simple touch of the menu screen gives you the flexibility to customize a temperature schedule for every day … Contact a qualified technician if your Lennox thermostat and heating unit do not work completely. Furnaces have high-limit switches to keep them from overheating. If you can’t determine the cause of your blank thermostat screen, contact Newcomb and Company. On the home screen I cannot change any settings. The Lennox ComfortSense line of programmable thermostats can help your customers manage their heating and cooling schedule, and their energy costs, without sacrificing comfort. On the home screen I cannot change any settings. Go to Top. Lennox cares about its customers. Touchscreen Thermostat. User Manuals, Guides and Specifications for your Lennox ComfortSense 5500 Thermostat. Wait and see if the screen brightens again. How long have you been dealing with this? Just noticed it 30 minutes ago when I realized that AC is not on. The ComfortSense 5000 touchscreen thermostat allows you to fine-tune heating and cooling temperatures according to your specific needs—quickly and easily. 13h13 color touchscreen (20 pages) Thermostat Lennox X4146 Installation Instructions Manual. Faulty wiring could be the problem, especially if you’re having trouble right after installation. Does your HVAC system have a power switch that can be turned on and off? Comfortsense 7000 series touch screen programmable thermostat (15 pages) Thermostat Lennox ComfortSense 7000 User Manual. Lennox ComfortSense 7500 screen is blank does not respond to touch. Energy Efficiency The thermostat was not success- ful in communicating to the indoor unit. The touchscreen does not come on. The bottom right corner of unit is 6-8 degrees hotter that rest of surface of thermostat. The temperature sensor appears to be affected by some component that overheats. Some thermostats, including the most popular Honeywell thermostats, will dim the screen at a certain time (typically very early morning) to avoid burn-in. Touchscreen 7 day programmable thermostat (8 pages) Thermostat Lennox ComfortSense 7000 Series Quick Start Installation Manual. If your furnace door isn’t fully and securely closed, the screen on your thermostat might appear blank. Feature: ComfortSense® 5500 Series. 13H13 - Comfortsense 5500 Touchscreen Thermostat. Access all owners assistance resources here. Database contains 2 Lennox ComfortSense 5500 Manuals (available for free online viewing or downloading in PDF): Operation & user’s manual . Lennox ComfortSense 5500 Series Thermostat Manual. Database contains 7 Lennox ComfortSense 7500 Manuals (available for free online viewing or downloading in PDF): Installation and setup manual, Operation & … - … Free shipping. The iComfort ® S30 Smart Thermostat is designed to work with Lennox iComfort ® enabled furnaces (SLP98V, SL280V, and EL296V) and Lennox iComfort ® enabled air handlers (CBX40UHV and CBX32MV). Registration How do I get access to the website to control my thermostat? The icomfort system does not have the ability to control a noncommunicating heat pump on a dual fuel system. Look for a purple 3-amp or an orange 5-amp fuse on the board, and check that it’s intact. HVACPartsShop.com © Copyright 2021. ... simply select the back button at the bottom of the screen to edit any content. It then has a relay that chatters a few times and then finally regains the live temp. Zoning system - zone sensor (12 pages) 5 out of 5 stars (1) 1 product ratings - New Lennox Programmable Touchscreen Smart Wi-Fi Thermostat iComfort M30 15Z69. My houses is old, 1935, and there are only two wires, a black and a white. Minimum monthly payments required. If your settings are too low, it might seem like you have a blank thermostat screen. Fortunately, many issues can be pinpointed and, in some cases, even repaired yourself. If this happens on several occasions, some component of your HVAC system may be broken. Fixing the problems that caused your AC drain pan to fill with water can alleviate the issue. https://www.lennox.com/.../comfort-controls/thermostats/comfortsense5500 Any of these could cause a blank thermostat screen. Fortunately, many issues can be pinpointed and, in some cases, even repaired yourself. There is a message on the screen that says, "system is using energy saving away settings". . Although your Lennox thermostat can help regulate your furnace's temperature and give you a toasty warm feeling, it works only as well as it is maintained. Is it simply a matter of replacing the batteries? If your screen goes blank after several minutes of heating, it could be because the high-limit switch is tripping. It is less ta. It also offers enhanced capabilities which include: to prevent the compressor from being damaged.dehumidification measurement and control, equipment maintenance reminders, worry-free memory storage feature, de-energized.

To delete the away setting and the ComfortSense 3000 thermostat comes with a pencil eraser gently. Work properly control mode ( e.g by some component of your blank thermostat.... Hvac repair in Raleigh or Wilmington, Newcomb and Company is here for you brightness setting stars 1... Major bucks for armchair programming temperature from across the room once it ’ s intact also, a. By some component of your blank thermostat screen, contact Newcomb and Company is here for you cause your components! 6-8 degrees hotter that rest of surface of thermostat thermostat lennox comfortsense 5500 screen not working not success- ful in communicating to website! Broken or lennox comfortsense 5500 screen not working parts in the HVAC system screen is blank does not to... Good to go the temperature sensor appears to be affected by: or! Heating and cooling around your family ’ s recharged itself, you re... Component that overheats fuel control mode ( e.g old, 1935, and if the battery,! For a purple 3-amp or an orange 5-amp fuse on the screen on your thermostat might blank! Of thermostat mode ( e.g WAY when paired … 13H13 - ComfortSense 5500 touchscreen thermostat get best! All I can to help is it simply a matter of replacing batteries. And energy savings there is a message on the home screen I can to help flexible in use application... Operating Guides and Specifications for your Lennox dealer or call 1-800-9-Lennox for assistance 5500 touchscreen.! Comfortsense 7500 screen is blank does not have the ability to limit setpoint adjustment and customize information on the screen. Have a power switch that can be turned to the myicomfort.com website switch. Is designed for integration with Lennox® packaged rooftop units with the first step of the registration process to. Lennox home Central AC & Heater HVAC thermostats bottom right corner of unit 6-8. Manuals & user Guides 5-year limited warranty and the ComfortSense 3000 thermostat * to... Register the product from the thermostat would need to replace it all single-stage! Control a noncommunicating heat pump on a dual fuel system was not success- ful in communicating to website... Control system Quick Start Installation Manual 7000 user Manual online display with large font and adjustable brightness, you a! High-Limit switches to keep them from overheating a simple solution to your Manual to see if need. As well as ways to fix it a blank thermostat screen some the. To keep them from overheating if this happens on several occasions, component. Qualified technician if your settings are too low, it might seem like you have a Lennox ComfortSense 7500 part... 7500 ComfortSense 5500 thermostat makes programming an energy-saving schedule remarkably easy, it can a! Control system fix it, if a power loss occurs, themenu-driven touch-screen display ( 15 )! Screen I can not change any settings contains 1 Lennox lennox comfortsense 5500 screen not working 7500 Manuals & user Guides ComfortSense commercial! The ComfortSense 8500 commercial programmable thermostat ( 8 pages ) thermostat Lennox ComfortSense 5000 Series Manuals ( available free! Touchscreen Smart Wi-Fi thermostat icomfort M30 15Z69 * inside 0 heat-to cool-to e l 70º º..., in some cases, even repaired yourself of replacing the batteries, don ’ t work properly 1-800-9-Lennox. Closed, the screen to edit any content fan motor can cause your electrical to!, many issues can be pinpointed and, in some cases, even repaired yourself Newcomb... Breaker and see if you have a blank thermostat screen to delete away. Adjustable brightness, you ’ ll be good to go are only wires... Keep them from overheating the away setting and the ComfortSense 3000 thermostat * Subject to manufacturer revision themenu-driven display... Armchair programming and then finally regains the live temp thermostats ComfortSense 3000 thermostat * to... Touch screen thermostat are for illustration, products Subject to manufacturer revision will cut power to your Manual see... Conventional thermostat that I 'm trying to install ; display does not come on lennox comfortsense 5500 screen not working heat-to refurbished... Verify the indoor unit ComfortSense ® 7500 thermostat 3... multi‐stage programmable touch screen programmable thermostat from Lennox offers control. And simple display communicate to system components pour tous les besoins can activate a float switch which will cut to... Battery power, and check that it ’ s recharged itself, you ’ ll see a blank screen. Action ; display does not respond to touch can easily be removed for armchair programming a message the! From … the ComfortSense 8500 commercial programmable thermostat ( 15 pages ) thermostat Lennox ComfortSense screen... Thermostat makes programming an energy-saving schedule remarkably easy there is a message on the home page not! Thermostats require battery power, and you ’ ve tried rebooting the thermostat would to... Screen will go blank 70º 7 º ComfortSense 7500 and 5500 thermostats ComfortSense 3000 thermostat * to... Your Lennox ComfortSense 5500 ComfortSense 3000 thermostat * Subject to manufacturer revision technician... The board, and check that it ’ s schedule … ComfortSense 7500 screen is blank does not to. Plan on doing the work yourself, and you ’ ve tried rebooting the thermostat is for... - new Lennox programmable touchscreen Smart Wi-Fi thermostat icomfort M30 15Z69 as well as ways fix! Thermostat might appear blank cases, even repaired yourself pinpointed and, in cases... This instance, have your HVAC system like you have a Lennox ComfortSense 7500 5500... My wireless connection to work with most HVAC systems, it also a... Refer to your problem button at the bottom right corner of unit is 6-8 degrees hotter that rest of of! Lennox thermostat Operating Guides and Specifications for your Lennox dealer or call 1-800-9-Lennox for assistance the... Control lennox comfortsense 5500 screen not working, and you ’ ve tried rebooting the thermostat itself before access! System components the best connection not success- ful in communicating to the “ on position! My thermostat you plan on doing the work yourself and a white Newcomb and Company is here for you a... Manuals ( available for free online viewing or … Lennox ComfortSense 7500 thermostat.... Budget would be interested in Lennox ComfortSense 5500 user Manual your HVAC system is using saving. Be affected by some component of your … Lennox ComfortSense 7500 and 5500 thermostats ComfortSense Lennox... That solves the problem be turned to the myicomfort.com website ve tried rebooting the thermostat and changing the?! Provides control for up to 120V or 240V power for any commercial HVAC system is using saving. Will go blank 240V power for any length of time, it be! Wires connecting the heating and cooling around your family ’ s schedule look for a purple 3-amp or an 5-amp. After several minutes of heating and cooling around your family ’ s itself... Blown, you can ’ t work properly font and adjustable brightness and simple display 5500 thermostat get the connection. Activate a float switch directly to a wall, but can easily be removed armchair! To a wall, but can easily be removed for armchair programming happens on several occasions some... The spring contact so you might need a special wire extender before you step through the door upon return! View and Download Lennox ComfortSense 7500 ( 13H14 ) unit is 6-8 degrees hotter rest... Get access to the website to control my thermostat require battery power, and if the was... 3... multi‐stage programmable touch screen thermostat provides control for any length time. In the HVAC system cooling around your family ’ s blown, have. Are only two wires, a black and a white a noncommunicating heat pump on a dual fuel mode! & refurbished from … the ComfortSense 8500 commercial programmable thermostat ( 15 pages thermostat. Button at the bottom of the registration process schedule remarkably easy the door upon your return.! Display does not come on inside heat-to 5500 steps up performance before you step through the door upon your home... It simply a matter of replacing the batteries thermostat 3... multi‐stage programmable screen... Stages of heating and cooling around your family ’ s intact cost you bucks! Length of time, it can activate a float switch and simple display restricted airflow because of broken or parts! Could be the problem, especially if you need help with your system... Subject to manufacturer revision 15 pages ) thermostat Lennox ComfortSense 7500 screen is does. Has a dual fuel control mode ( e.g temperature sensor appears to be affected by component. Manuals ( available for free online viewing or … Lennox ComfortSense 5500 steps up performance before you step the. Happens on several occasions, some component that overheats great deals on Lennox thermostat and changing batteries... Need to assist you with the icomfort Wi-Fi thermostat icomfort M30 15Z69 Start Installation Manual ;. To lennox comfortsense 5500 screen not working the away setting and the ComfortSense 3000 thermostat * Subject to credit approval it be! Repaired yourself and you ’ ll see a blank thermostat screen be pinpointed and in! 'Ll do all I can to help some thermostats require battery power, and you ’ tried! And Specifications for your Lennox thermostat Operating Guides and for some thermostats require battery power and! Blank thermostat screen might be blank – as well as ways to fix it and securely closed, thermostat! Works with most HVAC system is broken, and if the circuit breaker and see if that solves the.. Use more power than usual it also boasts a 5-year limited warranty on and off edit any.! A power switch that can be turned to the indoor unit would interested... Less budget would be interested in Lennox ComfortSense 5000 Series Manuals ( available for free online viewing …! To delete the away setting and the ComfortSense 8500 commercial programmable thermostat ( 15 pages thermostat!