Honeywell home pro series thermostat cool on flashing

22.1 Honeywell Home T10 Pro Smart Thermostat Review Hands On RedLINK Sensor Video; 23 Documents / Resources. ... "Cool On" or "Heat On" is flashing. ... Honeywell TH3110D1008, TH3210D1004, PRO 3000 Series - Non-Programmable Digital Thermostat Manual (article) Honeywell TL8100A1008 - 7 DAY PROGRAMMABLE HYDRONIC THERMOSTAT Manual ...

II. Cool On Blinking on Honeywell AC Thermostat A. Overview of the Cool On Blinking issue. The cool on blinking issue on a Honeywell AC thermostat is one of the most common problems reported by users. When the cool on indicator light blinks, it indicates that there is an issue with the cooling system or thermostat that needs attention.Here's how to replace the batter in a Honeywell T4 Pro Programmable thermostat.2) You have a conventional heating system. Another reason a honeywell thermostat will not display the cool option is that you don’t have a cooling system such as an air conditioner or a heat pump. Be sure that you have an air conditioner. You can try setting your thermostat to defrost and check if the condenser unit will engage.Car thermostats fail when the valve of the thermostat fails to open, fails to close or gets stuck in a partially-open position. As the thermostat controls the flow of coolant to th...1-800-468-1502. 2. Introduction. The Honeywell T6 Pro Z-Wave Programmable Thermostat is a Z-Wave Plus certi- fied thermostat capable of controlling up to three heat and two cool stages of heat pump, (incl. dual fuel heat pump systems) and up to two heat and two cool stages of conventional system (3H/2C HP, 2H/2C Conv.)

The Honeywell AC thermostat is displaying a blinking "Cool On" indicator. In this situation, it is important to troubleshoot the issue to identify the cause and find a solution. A blinking "Cool On" indicator on a Honeywell AC thermostat can indicate various problems, such as a wiring issue, a faulty temperature sensor, or a ...1. Verify that the thermostat is set to cool and is calling for cooling, usually indicated by the words "cool on," a snowflake icon, or a shimmering snowflake icon. If the room temperature is below the cool set point, the thermostat display should indicate a call for cooling. 2. Confirm that the circuit breakers are on.To remotely access the unit through WIFI, a RedLINK Internet Gateway (THM6000R1002) is required and sold separately. Overview: All-new VisionPRO 8000 with RedLINK technology. Residential or commercial use. 7-day programmable. 1H/1C heat pump or 1H/1C conventional. Works standalone or with the THM5421R1021 Equipment Interface Module (EIM).T6 Pro Smart Thermostat Multi-Stage 2 Heat/2 Cool. SKU: TH6220WF2006/U. Control Your Comfort. The T6 Pro Smart Thermostat can give you home comfort control from anywhere. Connect to the app to view and change temperature settings, program a 7-day schedule or just let the T6 respond automatically it's designed to work with the heating …The T4 Pro Programmable Thermostat is easy to install with on-screen menus to display installation steps and a universal mounting system. It's even easier to use with simple push button controls, allowing you to adjust the temperature or set a heating and cooling schedule. Adaptive Intelligent Recovery. Over time, the T4 Pro Programmable ...Check out this support article to learn how to setup and configure your compatible Honeywell Home thermostat with Apple Homekit. ... Our Accessibility Statement. Beat the heat and save this season on a smart home thermostat. Search Button Find a Pro. Toggle navigation Home ... T6 Pro Smart Thermostat Support; …Smart Response Learning. The T6 Pro 7-Day Programmable Thermostat learns your heating and cooling cycle times to deliver the right temperature when you want it. With precise temperature control, the thermostat can automatically change from heating to cooling to help maintain the temperature you like most. Intuitive Design.Simply press the center button on the front of the thermostat, under where it says "unlock.". Next, enter the four-digit passcode. The default password on this model is "1234". From here, use the plus/minus buttons to change the number up and down. When you get to the correct number, hit the "select" button.

On my Honeywell Home Pro Series thermostat there 3 things going on. 1. Cool on is flashing in top left corner. 2. A triangle is light in middle of top of display. 3. Top right corner by Wi-fi there is … read moreA blinking “Cool On” message can indicate various causes, such as dying batteries, a power surge, or a power outage. Thermostat batteries generally last for an average of 10 months, making it easy to identify when dead batteries are responsible for the blinking message. However, sometimes a Honeywell thermostat can recuperate after a power ...1 Connecting to a Wi-Fi Network. Download this manual. Lyric™ T6 Pro Wi-Fi. Programmable Thermostat. User Guide. *TH6320WF2003 shown. Other models may vary. Welcome. This user guide is designed to help you get acquainted with your new Lyric T6 Pro.The T1 Pro Non-Programmable Thermostat comes with the standard UWP mounting system. The soft key controls (with a 2.37 sq. in. display) and the easy-to-read LED back light make this thermostat from Resideo one of the best choices in temperature control on the market. SELECT A MODEL: T1 Pro Non-Programmable Thermostat - 24 Vac.The T4 Pro Programmable Thermostat is easy to install with on-screen menus to display installation steps and a universal mounting system. It's even easier to use with simple push button controls, allowing you to adjust the temperature or set a heating and cooling schedule. Adaptive Intelligent Recovery. Over time, the T4 Pro Programmable ...

Carstar west valley collision center reviews.

If you see Honeywell thermostat flashing cool on, give it a time, around 15 to 20 minutes. Just turn everything off and wait. After the minute has passed, try to turn it on again. If nothing happens, contact the manufacturer’s customer service. But if the system works again, you know that you only need to give it time.Here’s how to fix it: Make sure the thermostat is set to the desired temperature for heating. Try to change your thermostat settings manually. This can be done by pressing the “Up” arrow. After that, press the option that says “Switch to Permanent Hold.”. Your thermostat setting will then switch by matching the outdoor temperature.In this video I explain what Temporary and Permanent Hold are on a Honeywell Pro Series Thermostat. I show you step by step how to select Temporary Hold and ...To adjust program schedules (RTH221) Press SET until Set Schedule is displayed. Press s or t to set your Wake time (Mo-Su), then press SET. Press s or t to set the temperature for this time period, then press SET. Set time and temperature for the next time period (Leave). Repeat steps 2 and 3 for each time period.

Read also: Honeywell Thermostat Flashing “Cool On” [7 Easy Fixes] 5. Furnace Ignition Problems. If you use a furnace for heating and your Honeywell thermostat says heat on but no heat coming through, there could be problems with your furnace ignition. Some issues that prevent your furnace from igniting include. Closed gas …Step 1 – Set to Thermostat’s Lowest Temperature Setting. When troubleshooting your thermostat’s “cool on,” the best way to start is by setting the temperature at the lowest setting. Check to see whether the thermostat can control the temperature, and if not, try modifying the controller settings.To reset your Honeywell t4 Pro thermostat, follow these steps: 1. Locate the “MENU” button on the thermostat. 2. Press and hold the “MENU” button until the screen changes. 3. Navigate to “RESET” using the arrow buttons. 4. Select “RESET” and confirm the reset by pressing “YES” when prompted. The T4 Pro Programmable Thermostat is easy to install with on-screen menus to display installation steps and a universal mounting system. It's even easier to use with simple push button controls, allowing you to adjust the temperature or set a heating and cooling schedule. Adaptive Intelligent Recovery. Over time, the T4 Pro Programmable ... PRO 2000 HORIZONTAL PROGRAMMABLE THERMOSTAT Manual & Support. TH2210DH1000/U, TH2110DH1002/U. Download Manual Download Installation Guide. Download Service Datasheet.My thermostat is TH411OU2005. Honeywell home pro series. i think it is programable. i just want to set the temperature, but i can't because it keeps talking about time and fans and other stuff. can yo … read moreForeign companies don’t quite know what to make of China’s leadership transition. Maybe that’s why Honeywell CEO David M. Cote’s simple advice tonight—telling businesses not to ove...Temperature settings do not change. Make sure heating and cooling temperatures are set to acceptable ranges: • Heat: 40 °F to 90 °F (4.5 °C to 32.0 °C) • Cool: 50 °F to 99 °F (10.0 °C to 37.0 °C) “Cool On” or “Heat On” is flashing. • Compressor protection feature is engaged.Step 1 – Set to Thermostat’s Lowest Temperature Setting. When troubleshooting your thermostat’s “cool on,” the best way to start is by setting the temperature at the lowest setting. Check to see whether the thermostat can control the temperature, and if not, try modifying the controller settings.Make sure the breaker is in the "ON" position or replace any blown fuses. If the thermostat is battery-powered, check the battery statu s and replace the batteries if necessary. Sometimes, cooling issues can arise if the Honeywell ProSeries thermostat is not correctly connected to the power source.

4. If you installed the thermostat yourself, verify that the thermostat is correctly configured to control a heat pump. The installation instructions for your thermostat show these settings. 5. If the heat pump runs in cool mode with a call for heat, verify that the configuration setting for the changeover is set correctly for your system.

Contents hide 1 Honeywell Home PRO 1000 Non-Programmable Thermostat 2 About your new thermostat 2.1 Features 3 A quick reference to controls 3.1 Select the system setting 4 Built-in compressor protection 4.1 Battery replacement 5 In case of difficulty 6 2-year limited warranty 7 Reference Honeywell Home PRO 1000 Non-Programmable Thermostat This manual covers […]2) You have a conventional heating system. Another reason a honeywell thermostat will not display the cool option is that you don’t have a cooling system such as an air conditioner or a heat pump. Be sure that you have an air conditioner. You can try setting your thermostat to defrost and check if the condenser unit will engage.The T4 Pro Programmable Thermostat is easy to install with on-screen menus to display installation steps and a universal mounting system. It's even easier to use with simple push button controls, allowing you to adjust the temperature or set a heating and cooling schedule. Adaptive Intelligent Recovery. Over time, the T4 Pro Programmable ...Jim Cramer says it's worth taking a look at shares of Honeywell, based on its updated guidance....HON Honeywell's (HON) stock is undervalued compared to other industrial compan...PRO 1000 Series Non Programmable Thermostat 69-2607EFS-06 Heat Off Cool Auto On Fan ... "Cool On" is flashing • Compressor protection feature is engaged. Wait 5 minutes for the ... The Honeywell Home trademark is used under license from Honeywell International, Inc. This product is manufactured by Resideo Technologies, Inc. and its ...Honeywell PRO 1000 Series User Manual View and Read online. Est. reading time 4 minutes. PRO 1000 Series Thermostat manuals and instructions online. Download Honeywell PRO 1000 Series PDF manual. ... When "Heat On" or "Cool On" is flashing, compressor protection is engaged.View and Download Honeywell Home 9000 Series user manual online. Smart Colour Touchscreen Thermostat. 9000 Series thermostat pdf manual download. ... Thermostat Honeywell Home T6 Pro Series Installation Instructions Manual ... Page 49 Glossary Heat Pump heating/cooling system Heat pumps are used to heat and cool a home. If your old thermostat ...

Homosassa hourly weather.

Why did james rafferty leaves lightbearers.

About your new thermostat Congratulations on the purchase of your new Honeywell thermostat. It has been designed to give you many years of reliable service and easy-to-use, push-button climate control. Features • Separately programmable weekday/weekend schedules. • One-touch temp control overrides program schedule at any time. • EnergyStarSave on the Honeywell Home TH6320U2008/U from Build.com. Low Prices + Fast & Free Shipping on Most Orders. Find reviews, expert advice, manuals, specs & more. ... Honeywell Home T6 Pro Programmable Thermostat up to 3 Heat/2 Cool Model: TH6320U2008/U. from the T6 Pro Collection. 82 Reviews (82) ... Up to 3 heat/2 cool heat pump systems and up to ...The T4 Pro Programmable Thermostat is easy to install, with on screen menus to display installation steps and a universal mounting system. ... T4 PRO 5-Day to 2-Day Programmable Thermostat 1/Heat 1/Cool - (2-Pack) (51) $ 84. 98. ... Maintain the temperature in your home with this convenient Honeywell Home smart thermostat. Designed with ...The FAN selection key has two or three positions: Auto, On, and on select models, Circ (Circulate). The Auto position will allow the system fan to operate whenever the heating or cooling system is turned on by the thermostat. The fan will not blow air unless there is a call from the system. This is the normal setting for a system fan. The On ...2) You have a conventional heating system. Another reason a honeywell thermostat will not display the cool option is that you don't have a cooling system such as an air conditioner or a heat pump. Be sure that you have an air conditioner. You can try setting your thermostat to defrost and check if the condenser unit will engage.View and Download Honeywell Home THX321WF2001W user manual online. Smart thermostat with RedLINK 3.0. THX321WF2001W thermostat pdf manual download. Also for: & t10+ pro, Thx321wfs3001w, Thx321wf3003w, Thx321wfs2001w, Thx321wf2003w, T10, C7189r3002-2, C7189r2002-2, C7089r3013.If you have a C wire, place it into the C terminal on your wall plate. C wire adapters are available here. Let's look at the G wire. This wire goes to the G terminal on your new thermostat. Of the Y, Y1, and Y2 wires, Y or Y1 go to the Y terminal and Y2 to the Y2 terminal. The O/B wire can have many configurations.The thermostat is a piece of our home we instinctively trust.We rely on it all the time to ensure that we can get comfortable as we relax.Unfortunately, that trusty thermostat could also be the source of confusion and frustration inside your home.One morning, you may find the temperature to be chilly even though your Honeywell …May 4, 2022 · Confirm the message "Cool On" is solid (not blinking) on the thermostat display. Confirm your wiring is correct, and the wires have good contact in the terminals (tug gently on the wires) Check your jumper / R wire. Thermostats get power on the R and Rc terminals.If you have a wire in the R terminal, and no wire in the RC terminal, use the ... SIMPLE TO THE TOUCH. Looking for a traditional, easy-to-use thermostat, install the inexpensive PRO 1000 Vertical Non-Programmable Thermostat. You will appreciate the backlit digital display and the reliable basic operation of the slide switch to select heat, cool or fan. SELECT A MODEL: PRO 1000 Vertical Heat Non-Programmable Thermostat. ….

1. Verify that the thermostat is set to cool and is calling for cooling, usually indicated by the words "cool on," a snowflake icon, or a shimmering snowflake icon. If the room temperature is below the cool set point, the thermostat display should indicate a call for cooling. 2. Confirm that the circuit breakers are on.Select your Home Wi-Fi network name and touch “CONNECT”. For hidden networks, touch the “OTHER” button to enter the network name/SSID manually. Enter the password for your Home Wi-Fi network. Touch “NEXT”. You will receive a “Success” message. Step2- Register your thermostat.Make sure the temperature is set higher than the Inside temperature. Set system switch to Cool. Make sure the temperature is set lower than the Inside temperature. Wait 5 minutes for the system to respond. Check circuit breaker and reset if necessary. Make sure power switch at heating & cooling system is on.View and Download Honeywell VisionPRO Series user manual online. with RedLINK. VisionPRO Series thermostat pdf manual download. Also for: Vision pro series, Th8321r1001/u, Visionpro 8000 th8321r1001, Th8320r1003, Th8320r1003/u, Visionpro th8321.1-48 of 129 results for "Honeywell Pro Series Thermostat" Results. Check each product page for other buying options. ... Home Honeywell THX321WFS2001W T10 Pro Smart Thermostat with RedLINK, White. ... TH6220U2000/U T6 Pro Programmable Thermostat, 2 Heat / 1 Cool Heat Pump Or 2 Heat / 2 Cool Conventional, 2.27" x 6" x 5", White, Model:ITBD ...Honeywell Home TH4210U2002 - T4 Pro Programmable Thermostat, 2H/1C Heat Pump, 1H/1C Conventional- The T Series programmable thermostat streamlines everything from product selection and installation to customer service and support. With a standard footprint and simple interface, the T Series will enhance the entire thermostat experience for you and your customers alike.<br> <br><b>T4 Pro</b ...Reason 1: Incorrect Temperature Setting. When your thermostat displays “Heat On” but doesn’t produce warmth, it’s often because the temperature setting isn’t above the room’s current temperature. This causes the heating system to remain idle, despite the thermostat’s indication. The thermostat’s primary function is to maintain ...Honeywell Thermostat in Recovery Cool on Flashing . If you have a Honeywell thermostat and it's in "recovery cool" mode, that means the device is trying to bring the temperature of your home back down to the set point. The flashing indicates that the process is ongoing. Once the desired temperature is reached, the display will stop flashing. Honeywell home pro series thermostat cool on flashing, Summary of Contents for Honeywell Home T1 Pro. Page 1 T1 Pro Product TH1110D2009 Information TH1010D2000 Built-in compressor protection Thermostat controls Damage can occur if the Message flashes until safe • System status • Indoor temperature compressor is restarted restart time has elapsed. information setpoint too soon after shutdown., Manuals and User Guides for Honeywell Home TH4110U2005. We have 6 Honeywell Home TH4110U2005 manuals available for free PDF download: Manual, Installation Instructions Manual, User Manual, Product Information., Hello I have a Honeywell T4 Pro that was flashing "Cool On" on the right side of the screen. Nothing seems to help I did replace the batteries and it stopped blinking and now it is solid "Cool On" When I run the test it does kick the AC on. So the AC itself is fine. It seems like it is something with the thermostat. It has fresh batteries., Page 1: Thermostat Controls. Turn thermostat over, insert fresh AA alkaline batteries, then reinstall Product Manuals thermostat. Search online for Honeywell 69-1929EFS for the Installation Guide. Search online for Honeywell 69-1776EFS for the User Guide. 33-00300EFS-01..., If you need to reset your Honeywell Pro Series thermostat, the process is simple. First, locate the Reset button on the thermostat’s control panel. It should be located near the bottom of the device and may have a “Reset” label above or below it. Once you’ve located it, press and hold down for 10 seconds until all settings are restored ..., or call Honeywell Customer Care toll-free at 1-800-468-1502. This manual covers the following models: TH5110D:For 1 Heat/1 Cool systems. TH5220D:For up to 2 Heat/2 Cool systems. TH5320U:For up to 3 Heat/2 Cool systems. MCR29404(Remove battery holder to find model number) FocusPRO. ®TH5000 Series 1 69-1923EFS—01. ENGLISH., Change the batteries. Replace air filters. Check the furnace door/power switch. Inspect air conditioner coils. Replace the thermostat. Call in an HVAC specialist. Honeywell thermostat set to cool but heating. Confirm the thermostat is set up properly. Lower the temperature on the thermostat., The budget-friendly Honeywell Home E1 PRO Thermostat by Resideo is simple to use with mechanical slide switches to select heat or cool mode and set fan operation. Precise comfort control with basic up-down controls maintains consistent comfort with high accuracy. Basic up and down buttons. Large, easy-to-read display. Battery alert icon., Steps To Troubleshoot Issues With 'Cool On': Honeywell Thermostat. The 'Cool On' indicator flashing on your Honeywell thermostat should normally resolve itself within 5 minutes. However, if that does not happen, you can use the steps below to troubleshoot the issue and resolve the problem. Set Thermostat To Lowest Temperature Setting, Incomplete thermostat wiring could cause a Honeywell thermostat to flash heat on, but no heat is coming. 4. Thermostat Settings Could Cause a Honeywell Thermostat Flashing Heat On But No Heat. One of the commonest issues that homeowners overlook is the thermostat setting. You need to make sure that the …, Honeywell Home THX321WF2003W - T10 Pro Smart Thermostat w/ RedLINK, 3H/2C Heat Pump, 2H/2C Conventional (without sensor)- Please note: This model comes WITHOUT the indoor room sensor <br><br>The T10 Pro Smart Thermostat is the newest member of the T Series lineup of thermostats utilizing both RedLINK and Wi-Fi capabilities. It allows homeowners to prioritize spaces in their house where ..., Contents hide 1 Honeywell T1 Pro Non-Programmable Thermostat 2 Package Includes 2.1 Setting Slider Tabs (built-in jumper) 2.2 Wiring conventional systems: forced air and hydronics 2.3 Wiring heat pump systems 3 Thermostat mounting 4 Fan operation settings 5 Installer setup options (ISU) 6 Specifications 7 Customer assistance 8 Reference Honeywell T1 Pro Non-Programmable Thermostat Package […], • T6 PRO Z-Wave Thermostat • UWP™ Mounting System • Decorative Cover Plate • Screws and anchors • 3 AA batteries • Thermostat Literature Actual size 4.09' x 4.09' x 1.06'' T6 Pro Z-Wave™ Programmable Thermostat TH6320ZW2003 TH6320ZW2007 (with SmartStart) Professional Install Guide PM Mode Menu Fan Fan Auto Mode Heat Wake Away ..., The cool on is flashing there is a 100 where the room temperature setting woul ... Can not change the temperature - display says unlock at the bottom of the display — it's a pro series Honeywell home thermostat - I could push the leftmost button on the pro series thermostat edit it ..., Customer assistance For assistance with this product, please visit customer.honeywell.com. Or call Honeywell Customer Care toll-free at 1-800-468-1502. Page 26 Introduction The Honeywell T6 Pro Z-Wave Programmable Thermostat is a Z-Wave Plus certi- fied thermostat capable of controlling up to three heat and two cool stages of heat pump, (incl ..., The steps for replacing the battery on a Honeywell Home Pro Series thermostat are relatively simple. First, you need to locate the battery compartment on the thermostat. Then, you need to remove the cover plate and take out the old batteries. Finally, you can insert the new batteries and replace the cover plate., 2/22/22. When you are in Auto Change Over mode, the display will say either "auto heat" or "auto cool" to the left of the room temperature. If you are trying to change the heat setting when the display says "auto heat", or trying to change the cool setting when it says "auto cool", simply press the + or - button. If you want ..., Incomplete thermostat wiring could cause a Honeywell thermostat to flash heat on, but no heat is coming. 4. Thermostat Settings Could Cause a Honeywell Thermostat Flashing Heat On But No Heat. One of the commonest issues that homeowners overlook is the thermostat setting. You need to make sure that the …, To reset your Honeywell t4 Pro thermostat, follow these steps: 1. Locate the "MENU" button on the thermostat. 2. Press and hold the "MENU" button until the screen changes. 3. Navigate to "RESET" using the arrow buttons. 4. Select "RESET" and confirm the reset by pressing "YES" when prompted., In this video I show you how to setup a schedule on the Honeywell Pro Series T4 Thermostat. I show you step by step how to program the time and temperature f..., Contact an installer or HVAC professional to replace the thermostat. E1/E2: Problem: Z-Wave Radio Malfunction Details: The Z-Wave module is not working and the thermostat cannot receive commands from your Z-Wave network. Contact an installer or HVAC professional to replace the thermostat. E01: Problem: Wi-Fi Setup Error, Not all thermostats have this feature, so check your manual to see if yours does. If not, your problem could be something else. Solution: If you have a battery tester, take out your batteries and test them. Replace if necessary. If not, replace them anyway and see if that stops your thermostat from blinking. 3., How to Reset Honeywell Thermostat. Resetting your Honeywell thermostat is a simple and painless process. Begin by pressing the reset button on the side of the thermostat, then wait for the display to clear. Next, press and hold down both the “up” and “down” buttons until all segments of the display flash twice., Contents hide 1 Honeywell Home RTH6360 Series Programmable Thermostat 2 Included in your box 3 Tools you will need 4 Removing your old thermostat 5 Set date and time 6 System Setup 7 System Setup options 8 System operation settings 8.1 System modes: 8.2 Fan operation settings 9 Program Schedule 9.1 To adjust program schedules. […], 2/22/22. Cycles per hour (cycle rate) is a measure of how many times per hour your heating or cooling system will turn on and off. You do not need to select a cycle rate as part of setting up your Lyric; it will automatically suggest a cycle rate appropriate for your system based on the information you provide., If your Honeywell thermostat has gone blank, there are several potential causes. It may be due to a power outage or surge or a dead battery, as these might have caused damage to the device itself and rendered it temporarily unusable. Alternatively, it could be because of an issue with the wiring in your home's HVAC system, or maybe something ..., Dec 15, 2022 · 2) You have a conventional heating system. Another reason a honeywell thermostat will not display the cool option is that you don’t have a cooling system such as an air conditioner or a heat pump. Be sure that you have an air conditioner. You can try setting your thermostat to defrost and check if the condenser unit will engage. , Check the thermostat display for cooling, usually indicated by the words “cool on” or a snowflake icon. If these icons are flashing, the thermostat is in delay …, 1-Week Programmable Thermostat Support; 5-2 Day Programmable Thermostat Support; Single-stage Programmable Thermostat Support; Pro 2000 Horizontal Programmable Thermostat Support; T6 Pro Smart Thermostat Support; T5/T5+ Smart Thermostat Support, 1 Common Issues With Honeywell Pro Series Thermostats. 1.1 Thermostat Not Working. 1.2 Blank Screen Or Unresponsive. 1.3 Thermostat Not Heating Up. 2 Troubleshooting Solutions. 2.1 Check Power Source And Batteries. 2.2 Inspect Circuit Breaker. 2.3 Ensure Indoor Unit Doors Are Closed. 2.4 Restart The Thermostat., If the screen of your Honeywell thermostat is blank, you should first check the furnace or air conditioner to be sure both are on and functioning properly. If the door to the furnace is open, for instance, the thermostat display may be blank. A fix could be as simple as closing the door of the furnace. You should also check the circuit breaker ..., Make sure function 38 is set to 1, then proceed to function 39. Use the up or down arrow to change function 39 function to 0 then press done. WiFi setup will then be displayed on the screen.*. Step 2 – Connect the thermostat to your home WiFi (via an internet browser on your mobile device) After connecting to the thermostat WiFi ..., So, when your Honeywell thermostat is in the blinking stage, it shows Cool-On for more than 5 minutes - But there is a feeling that the surrounding area is not cooling down, there is no cool air coming through the system either; you might need to fix the problem.