Connection failure honeywell thermostat

The reasons behind your Honeywell water heater sensor failure are: A dirty or defective sensor. The sensor's loose connection. The sediment accumulation in the sensor. However, in today's guide, we will tell you how you can fix the above-mentioned issues and find your Honeywell water heater sensor is working fine. Quick Solution: In the first

The RTH5160 Simple Display Non-Programmable Thermostat has all the features you love - straightforward readings, single-degree control, basic functions - with a backlit, easy-to-read display that shows both your temperature and set point simultaneously. Change is Good. This thermostat is all about change.Total Connect 2.0 App; Honeywell Home App; All apps; Featured Products WiFi 9000 Color Touchscreen Thermostat ... Honeywell Home T5 and T6 WiFi thermostat connection failure. Video Modal 2. ×. Honeywell Home T5 and T6 thermostat WiFi reset with Android.Honeywell's WiFi Thermostats are compatible with the following WiFi security standards: OPEN WEP PSK WPA TKIP PSK WPA2 AES PSK WPA2 MIXED PSK WPA AES PSK WPA2 TKIP PSK Please change your router settings to use one of the supported security settings above. If unsure how to do this, please contact the router manufacturer.Honeywell Wi-Fi Thermostat Connection Failure – 7 Fixes. 1. Reset the Thermostat’s Wi-Fi Settings. 2. Check that your Internet is Stable and Functional. 3. Ensure you are Using the Right Honeywell App. 4. Ensure you are Using a 2.4GHz Wi-Fi Network.This is a router issue communicating. 1 - make sure your wifi/router is operating properly. 2- remove thermostat from wall plate for 10 seconds and reinstall. If 42 remains after 30 minutes there is an issue with the router connecting to stat. Read full interaction below ».The VisionPRO WiFi 8000 (RTH8580WF / TH8320WF) uses a 3-step connection and registration process. Step 1 – Connect your mobile device to the thermostat’s WiFi network (NewThermostatxxxxxx) Step 2 – Connect the thermostat to your home WiFi (via an internet browser on your mobile device) Step 3 – Register with Honeywell / resideo.

Common Honeywell thermostat problems can be resolved with effective troubleshooting. We will explore and provide solutions to common Honeywell thermostat issues in this guide. ... Step 1: Check Your Network Connection. If your thermostat is not connecting to Wi-Fi, the first step is to ensure that your network is working correctly. ...Turning off the Honeywell thermostat's permanent hold setting is easy. It is usually the same for turning off a temporary hold. Depending on your model, you can go ahead and press Run, Cancel, Run Schedule, Use Schedule, Remove Hold, or Cancel Hold. For other models such as the T4 Pro, press the +/- or up/down buttons first then press …The Smart WiFi 9000 uses a 2-step connection and registration process. Step 1 - Connect the thermostat to your home WiFi (Setup on thermostat display) Step 2 - Register your thermostat. (Performed in the My Total Connect Comfort web portal) *Registration cannot be performed with the mobile app, currently only supported via the web portal*.You need to first identify whether the COOL feature is working or not. To do so, set the fan switch to auto and the switch at the top of your thermostat to COOL. Turn the dial to the lowest setting like 60℉ and wait for 5 minutes. If the air conditioner unit kicks in, the COOL feature is functioning right.Common Honeywell thermostat problems can be resolved with effective troubleshooting. We will explore and provide solutions to common Honeywell thermostat issues in this guide. Whether it’s unresponsive, displaying inaccurate temperature readings, or experiencing Wi-Fi connectivity issues, we have got you covered.The Honeywell TH8321WF1001 thermostat is a versatile device that allows you to control your HVAC system efficiently. However, like any electronic device, it can experience issues from time to time. Here are some common problems you might encounter with the Honeywell TH8321WF1001 thermostat and their corresponding solutions: 1.When your Honeywell thermostat displays a “Connection Failure” message, it can disrupt the comfort and control of your home’s temperature. Fortunately, there are several basic troubleshooting steps that you can take to address this issue without the need for professional assistance.

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 CALL US. Speak directly to a support agent. Are you looking for product support or information about the Honeywell Home portfolio of products? View our support resources on Honeywellhome.com or contact us today. Nov 2, 2563 BE ... The Honeywell REM5000R1001 Portable Comfort Control how to fix Loss Connection Honeywell WiFi Thermostat Remote Control Loss Connection How ...Honeywell 6000 Series: If your thermostat falls under the Honeywell 6000 Series category, make sure the thermostat is turned on. Then, press and hold the “Fan” button as well as the “Up” arrow. Hold these for about five seconds, then release them. Press the button on the bottom left until you see “39” on the display.You're in control with the Honeywell Home Prestige® IAQ 2.0 Thermostat. This device lets you control your entire home's comfort via temperature, humidification, air-conditioning and ventilation. RedLINK® Technology lets you adjust these settings remotely. SELECT A MODEL: THX9421R5021WW Basic Prestige® 2-Wire Thermostat with RedLINK®.

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Total Connect App; Honeywell Home Membership; FEATURED PRODUCTS T9 Smart Thermostat with Sensor ... Unsure if Honeywell Home thermostats from Resideo are compatible with your home? Use our tool to determine which thermostats work with your home's existing wiring. Check Compatibility.SKU: TH8321WF1001/U. 2.9. |. 20 out of 71 (28%) reviewers recommend this product. With a large touchscreen display, the VisionPRO® 8000 WiFi Programmable Thermostat makes it easy to control your home comfort. Program a schedule for every day of the week or adjust the temperature remotely anytime from the Total Connect Comfort app.Connected to your existing WiFi, the T6 Pro Smart Thermostat is already part of the family. Integration with your Apple HomeKit and Amazon Echo lets you adjust your temperatures as easily as you change songs on your playlist. This thermostat also works with your heating systems stages, up to 3 Heat/2 Cool with heat pump. Energy Savings.Turn on "Airplane Mode" and then turn on WiFi and connect to the same WiFi network the thermostat will be connected to. Make sure the network is a standard home network and does not require logging in from a web page, such as a guest network or business network. Power cycle the Connected Homes device for 30 seconds or perform a hard reset ...

Honeywell Wifi Thermostat Connection Failure. Before fixing, you should know the factors that lead to Thermostat Connection Failure. After that, you can determine the solutions. Some problems require professional handling if, as the owner, you do not know how to perform the complicated steps. 1. Router and modem5/12/23. My Total Connect Comfort is a web portal for remote access to Honeywell WiFi thermostats. You can access the portal here. Users can also manage their Honeywell WiFi thermostats using the Honeywell Total Connect Comfort app which is available for both Android and iOS. Lyric thermostats are managed only via the Honeywell Lyric app.For the Lyric Round thermostat, on the display screen, press and hold the Weather button for 5-10 seconds. Once the Main Menu displays, scroll down to Factory Reset and select OK. The Lyric Thermostat will display a prompt to proceed with the reset. Scroll down to Yes and select OK.Support Center. CHAT WITH A SPECIALIST Online chat. Get support for your WIFI 7-DAY PROGRAMMABLE THERMOSTAT, from installation and manuals to troubleshooting tips and replacement information.From time to time, your Honeywell thermostat may have connection problems. The most common issues are fairly simple, things like entering incorrect Wi-Fi …Check your jumper wire. To operate heating, the thermostat requires power to the R terminal. (If you have a wire in the RC terminal and no wire in the R terminal, insert the jumper wire between the R and Rc terminals) Advanced steps:Using a multimeter, measure the AC voltage between your R wire and your W wire (between Rc and Y for heatpump ...Honeywell RTH9580WF smart thermostat, displaying the -Please wait…- screen. To fix this wait message, simply wait, like it says, until the boot / reboot process finishes running. You'll know that booting is complete when the thermostat displays its home screen. We next show the home screens for the RTH8580WF and RTH9580WF Honeywell thermostats.Connection failure. Contractor's Assistant: Do you know the model of your Honeywell thermostat? How old is it? It's about 5 years old and I don't know the model. I can take a picture if that will help. Contractor's Assistant: How long has this been going on with your Honeywell thermostat? What have you tried so far?

This allows the registration data to bypass any network security that may be causing the connection failure. Once successfully registered, a WiFi Reset can be performed to move the thermostat to the home WiFi network. Advanced Steps: If you experience inability to connect, failure to register, or frequent WiFi signal loss, verify the following:

Make sure the network is broadcasting on the 2.4 GHz B, G, and N bands. If using a dual-band router separate the 2.4 and 5 GHz bands so the thermostat can connect to just a 2.4 GHz network. Make sure there isn't a limit to the number of devices that can connect to the network. Make sure the router is set up for DHCP.2018-03-11 03:21 PM. I have had a Honeywell Wi-Fi Thermostat (RTH6580WF) for a number of years now. Within the past 6 months, I purchased a Nighthawk R6400. Since then, i always get "Connection Failure" on my thermostat; despite doing numerous resets. Today, I decided to fire up my phone's hotspot and try to register the thermostat through …In this video you will learn how to remove your existing thermostat and install a Honeywell Wi-Fi Thermostat Model RTH6580WF. You will also learn how to conn...Fix 4: Update Firmware And Restart. To troubleshoot the Honeywell T5 thermostat, start by checking for firmware updates. Install the latest version if available. Next, turn off the power to the thermostat and then turn it back on to perform a restart. Give the thermostat some time to reset and reestablish its connection.Thermostat Connection Failure on The FocusPro Thermostat Honeywell Home, Manufacturer Part Number: THX321WF2003W Honeywell T10 Pro is a smart thermostat that controls up to 3H/2C heat pump systems or up to 2H/2CNov 6, 2566 BE ... Installing Smart Thermostat T5 Honeywell. Rob and Shelly Family Vlogs ... Honeywell Home T5 and T6 WiFi thermostat connection failure. Resideo ...For the Lyric Round thermostat, on the display screen, press and hold the Weather button for 5-10 seconds. Once the Main Menu displays, scroll down to Factory Reset and select OK. The Lyric Thermostat will display a prompt to proceed with the reset. Scroll down to Yes and select OK.The Honeywell TH8321WF1001 thermostat is a versatile device that allows you to control your HVAC system efficiently. However, like any electronic device, it can experience issues from time to time. Here are some common problems you might encounter with the Honeywell TH8321WF1001 thermostat and their corresponding …Old or low-quality batteries can cause issues with the device, including failure to turn on, inconsistent temperature readings, and connection problems. Verifying the Wiring Connections If your Honeywell thermostat is not turning on, it could be due to issues with the wiring connections.The Honeywell TH8321WF1001 thermostat is a versatile device that allows you to control your HVAC system efficiently. However, like any electronic device, it can experience issues from time to time. Here are some common problems you might encounter with the Honeywell TH8321WF1001 thermostat and their corresponding solutions: 1.

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*Disclosure, these are amazon affiliate links. If you purchase a product or service with the links that I provide I may receive a small commission. There is...May 12, 2023 · The VisionPRO WiFi 8000 (RTH8580WF / TH8320WF) uses a 3-step connection and registration process. Step 1 – Connect your mobile device to the thermostat’s WiFi network (NewThermostatxxxxxx) Step 2 – Connect the thermostat to your home WiFi (via an internet browser on your mobile device) Step 3 – Register with Honeywell / resideo. The T9 Smart Thermostat works with Smart Room Sensors to help you adjust the temperature from anywhere and stay cozy in the rooms that matter. Place sensors where you want to see each room's temperature and humidity. Use the multi-room display on the thermostat's touchscreen — or in the Resideo app — to focus on rooms based on occupancy or ...The engine thermostat regulates the amount and speed of engine coolant that passes from the radiator into the engine passages. The thermostat closes, preventing water flow when the...The Honeywell T9 thermostat troubleshooting involves checking power supply, network connectivity, and system settings. ... Troubleshooting the issues can help identify and resolve any problems. Whether it's a power supply issue, weak Wi-Fi signal, or incorrect system settings, understanding the potential causes and solutions can help get your ...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 thermostat is saying something different.View and Download Honeywell TH6320WF01 user manual online. Wi-Fi Programmable Thermostat. TH6320WF01 thermostat pdf manual download. Also for: Rth6500wf wi-fi series, Th6320wf.Designed to provide automatic time and temperature control of heating systems in homes and apartments. Compatible with 24-230V on/off appliances such as gas boilers, combi-boilers and heat pumps. Suitable for zone valve applications but not with electric heating (240V). Saving energy at home. 5-35°C Temperature Range. Suitable for All Boilers.We have a Honeywell FocusPRO 6000 Thermostat that controls a Lenox A/C unit used to cool only the 3rd Floor. Having just started the A/C this morning, cold air is coming out of the 3rd Floor vents, th …Thermostatic Controls - Replace Honeywell 8411 heat pump thermostat - I have a lennox heat pump system installed 2002 that has the following components: Heater - CB30M Coil - ECB29 Outdoor - HP26 and a Honeywell T8411R thermostat. The following wires are connected: G - Green C - Blue R - Red Y - Yellow W1 - Bridged toPress the “Menu” button on your thermostat. Select “Preferences.”. Select “Update Firmware.”. If an update is available, follow the prompts to download and install the update. By understanding the potential causes of Honeywell WiFi thermostat connection issues, you can troubleshoot and resolve the issue effectively.Installation manual said: 1. Press and hold button on receiver box for 15 seconds. After 15 secs the red will flash 0.1 secs on/0.9 secs off (Note: after 5 seconds the light will flash 0.5 sec on/0.5 sec off, but continue to hold the button in) 2. Release the button. ….

Sep 30, 2023 · Check your electrical panel. If your Honeywell Home smart thermostat has a blank screen or isn't kicking on your furnace or air conditioner, the breaker may have tripped. Check the breakers for the thermostat, your furnace, and your air conditioner to make sure everything is powered on. 3. Check the C wire. 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.Scroll down to "Thermostat Information. Record the "Date Code". Press the "back" arrow, then scroll down to "Installer Options". Enter the Date Code when prompted to "Enter your password". Select "Reset". Select "Factory Reset". PERFORMING A WiFi RESET. Press the Menu icon. Scroll down to "WiFi" and select it.However, you may sometimes run into a few issues with this thermostat, especially with the Wi-Fi connection. If your Honeywell Lyric T6 won’t connect to your home Wi-Fi network, it could be because of the following problems: The Wi-Fi router is not running. The router isn’t operating in the 2.4 GHz range. Network interference.Advanced Whole-Home Comfort. You're in control with the Honeywell Home Prestige® IAQ 2.0 Thermostat. This device lets you control your entire home's comfort via temperature, humidification, air-conditioning and ventilation. RedLINK® Technology lets you adjust these settings remotely. SELECT A MODEL: Prestige® IAQ Kit with RedLINK® and EIM.Hello I have Wi-Fi radio failure failure on my Honeywell thermostat I did not really want to use the Wi-Fi feature my son put this like this and now I can't regulate my ear or heat please advise. Contractor's Assistant: ... The screen says connection failure towards the top of it. In the center of it is the letter E02 and it says check user guide.You will need to refresh the network list by pressing the "Refresh" button on your Lyric app screen and try connecting again. If pressing "Refresh" does not work, change the channel your router is broadcasting on. Please consult your router's manual for instructions on changing the channel. Check that your router is broadcasting the WiFi …Sep 30, 2023 · Check your electrical panel. If your Honeywell Home smart thermostat has a blank screen or isn't kicking on your furnace or air conditioner, the breaker may have tripped. Check the breakers for the thermostat, your furnace, and your air conditioner to make sure everything is powered on. 3. Check the C wire. Firstly, check the signal strength of your Wi-Fi network. Ensure that the thermostat is within range and that there are no physical barriers affecting the signal. …Honeywell YRTH series thermostat troubleshooting. Display is blank. Make sure fresh AA alkaline batteries are properly installed. Cannot change system setting to Cool. Check Function 0170: System Type to make sure it is set to match your heating and cooling equipment. Fan does not turn on when heat is required. Connection failure honeywell thermostat, Honeywell Wi-Fi Thermostat Connection Failure – 7 Fixes. 1. Reset the Thermostat’s Wi-Fi Settings. 2. Check that your Internet is Stable and Functional. 3. Ensure you are Using the Right Honeywell App. 4. Ensure you are Using a 2.4GHz Wi-Fi Network., When this happens, you'll be notified through the Lyric app or email. The Resideo App is only supported in the U.S. and Canada. Verify your Region by selecting: Settings > General > Language and Region > Region > U.S. or Canada. U.S. or Canada must be selected to login. If your login still doesn't work, contact Resideo Support at 1-800-633-3991., Mar 28, 2566 BE ... How To Use Ecobee Thermostat Premium (Ecobee Smart Thermostat Manual) ... Reset Honeywell WIFI Thermostat Connection Failure. Chris Swain•129K ..., Honeywell T4 Pro Troubleshooting. Honeywell T4 Pro Troubleshooting can be done by following a few simple steps. Firstly, check to ensure that the thermostat is connected and powered correctly. Check if there are any loose or damaged wires, then return power to the system and try operating it again. Secondly, reset the system by …, SPECIFICATIONS. CT410A provides single-line break. CT410B provides double-line break positive OFF. Temperature Range: 40°F to 80°F (4°C to 27°C) Electrical Ratings: 60 Hz noninductive; 22A at 120-240 Vac; 19A at 277 Vac., Oct 24, 2018 · Learn more about Honeywell Thermostats from Resideo at: https://bit.ly/3mD8GLwTake control of your home comfort and save on energy costs with a range of Hone... , Learn more about Honeywell Thermostats from Resideo at: https://bit.ly/3mD8GLwTake control of your home comfort and save on energy costs with a range of Hone..., Sep 24, 2019 · This video covers how to fix a WiFi connection failure on the Honeywell Home T5 and T6 smart thermostats. http://bit.ly/2mtrTFt http://bit.ly/2kKiEjM , VisionPRO® 8000 with RedLINK® Single Stage Thermostat. SKU: TH8110R1008/U. 2.3. |. 62 Reviews. 12 out of 53 (23%) reviewers recommend this product. Write a Review. Simplify Your Whole Home Comfort. The VisionPRO® 8000 RedLINK® programmable thermostat allows homeowners to manage their entire home comfort system through one easy-to …, Jul 6, 2564 BE ... In this video, Michael from Alarm Grid explains why a Honeywell Home PROA7PLUS Security System might be failing to connect with a WIFI ..., Feb 25, 2566 BE ... Re-Binding / Re-Pairing, How to Re-Connect the Wireless connection. ... How to Fix Faulty Honeywell Thermostat Screen. ... MAJOR FAIL Dewalt 30 ..., Thermostat Wifi settings needs a reset. To reset the thermostat’s Wi-Fi settings. Press and hold the Fan Button and Up Arrow for about 5 seconds to change the screen. Press Back Button or Next Button until 39 appears on the left. Press the Up or Down Arrows to change the number on the right to 0. Press Done Button., If your digital thermostat isn't working so your heat or ac isn't turning on. It might be a very simple solution. If your heat still isn't working find a rel..., Honeywell thermostats are known for their reliability and advanced features, but sometimes navigating through the user manual can be a bit overwhelming. When you first receive your..., The Connection Failure message on your FocusPRO (TH6320WF, RTH6580WF, or TH6210WF) thermostat means you've lost the internet connection, and cannot automatically reconnect, or it failed to join the desired WiFi network.The steps below will resolve this. *Check with your Internet Service Provider (ISP) to see if you are required to be on-location with the thermostat to reconnect it manually ..., Honeywell wifi thermostat no IP address / Honeywell thermostat unable to obtain IP address. If you're getting "no IP address" message once you try to get it connected, try the following: Unplug the thermostats (for about 30 seconds to a minute) Plug the thermostat back in. Reboot the router., For the Lyric Round thermostat, on the display screen, press and hold the Weather button for 5-10 seconds. Once the Main Menu displays, scroll down to Factory Reset and select OK. The Lyric Thermostat will display a prompt to proceed with the reset. Scroll down to Yes and select OK., A Honeywell thermostat offers convenience and energy efficiency, but like any electronic device, it can encounter connectivity issues. When your Honeywell thermostat fails to communicate with the wireless network, it can be frustrating and disruptive to your home’s climate control. Fortunately, there are several steps you can …, Solution 1: Adjust Router Settings. Solution 2: Manually Input Wi-Fi Name in Thermostat. 4.Wi-Fi Disabled On Your Thermostat. The Hidden Setting: Wi-Fi …, Read also: Honeywell Thermostat Connection Failure and Ways to Fix It The key feature that sets Honeywell Thermostats with Humidity Control apart is the integration of a digital humidistat. This advanced sensor monitors and controls the humidity levels within your home, ensuring a comfortable and healthy living environment., Resetting the Honeywell thermostat to the default factory setting will delete all your saved settings. Follow the steps below to reset the Honeywell Vision Pro 8000 series. Press the “MENU” button. Go to the “PREFERENCES” tab. Scroll down and click on “RESTORE TO FACTORY DEFAULT.”. Tap “YES” to confirm the factory reset., Nov 21, 2563 BE ... How To Reset Honeywell WIFI Thermostat Connection Failure. Welding ... How To Use Honeywell Smart Thermostat Total Connect Comfort App Review ..., We already explored the possible causes of your Honeywell thermostat blowing cold air during the heat setting, Now let's proceed with a comprehensive step-by-step troubleshooting guide to help you pinpoint and resolve the issue: 1. Check Temperature Setting. - Verify that your thermostat is set to the desired temperature in heat mode., Honeywell T4 Pro Troubleshooting. Honeywell T4 Pro Troubleshooting can be done by following a few simple steps. Firstly, check to ensure that the thermostat is connected and powered correctly. Check if there are any loose or damaged wires, then return power to the system and try operating it again. Secondly, reset the system by pressing and ..., 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 …, honeywell wifi thermostat connection problems after power outage. Honeywell is a popular smart company widely known for offering great quality smart thermostats. Their smart thermostats are designed for ease of use, which is why they are generally recommended in the smart home community as one of the finest smart thermostats., L'utilisation d'Apple HomeKit avec votre thermostat Lyric requiert une alimentation de 24 V c.a. (fil C). Pour obtenir de l'aide, veuillez contacter : WEB lyric.honeywell.com COURRIEL [email protected] TÉLÉPHONE 1-800-633-3991 MÉDIAS SOCIAUX Twitter: @Honeywell_Home, Facebook: Honeywell Home, Hygrometers are used by many professionals to monitor levels of humidity in the air. So, do need one in your home? Advertisement Air has water vapor — or humidity — we are sensitiv..., Honeywell T9 or T10 Thermostats. Find your thermostat in the Latch App. Tap on your thermostat then tap on Tap here to connect. Follow the on-screen instructions to connect the Thermostat to WiFi. Locate your Thermostat on the wall and tap the Menu button. Tap the WiFi option in the Menu. Choose the WiFi Network Name from the list and enter the ..., Failure Connection (Honeywell WIFI Thermostat) I have had a Honeywell Wi-Fi Thermostat (RTH6580WF) for a number of years now. Within the past 6 months, I purchased a Nighthawk R6400. Since then, i always get "Connection Failure" on my thermostat; despite doing numerous resets. Today, I decided to fire up my phone's hotspot and try to register ..., I have had a Honeywell Wi-Fi Thermostat (RTH6580WF) for adenine number of years now. Within the historic 6 monthdays, I buying a Nighthawk R6400. Because then, myself always receiving "Connection Failure" to my thermostat; with doing numbered zeros. Present, I decisions at fire up my phone's flash plus trial into register ..., Here's an easy four step process to resetting your thermostat after a power outage. 1. Turn off your thermostat. Before doing any other troubleshooting, start by finding your thermostat and turning it off. You don't want your thermostat to be on and signaling the system when completing the later steps in our process that involve electricity., After organizing your thermostat wires, you can then remove the G wire from the terminal and reinstall it to the C terminal. Then, remove the wire connected to the Y/Y1 terminal on the thermostat; Take out the Add-A-Wire diode wire and connect the blue wire on the thermostat with the blue wire on the diode setup using a wire nut.