Honeywell thermostat in recovery no ac

To check the underline code behind the warning sign, follow these steps below: Step 1: The alert icon appears on the Home screen. Step 2: Press Menu, and then press until the display shows ALRT. Step 3: Press 'Select' to display which alert (s) are present. Step 4: The message REPL (REPLACE AIR FILTER) appears.

Honeywell thermostat in recovery no ac. Turning on the cool function of your Honeywell thermostat is a relatively simple process. First, turn the top dial to "cool" and make sure that it clicks into place. Then use the up and down arrows to set your desired temperature (the lower the number, the cooler). Finally press either "Run" or "Hold". If you select "Run", then ...

If your Honeywell thermostat is set to cool, but not working, the most likely cause is a problem with the wiring or power supply. Check that all wires are connected securely and that you have sufficient power (a working battery if it uses one). If everything appears normal, then you may need to reset the thermostat by pressing and holding down ...

Recently upgraded our old furnace to a new 2-stage one, and got a new smart thermostat in the process. Now though, we find it's not following the schedule properly in the morning. We've had these two scenarios happen back to back: Set wakeup for 7am, 70 degrees F. Get woken up at 5am to a 68 degree and climbing house as it's trying to warm to 70.The Mysa app is easy to use, and the thermostat has a simple design with a subtle, dot-matrix-like display and capacitive touch controls. Mysa also offers the lower-priced Mysa Lite (which has far ...Indicating Recovery Mode: Some Honeywell thermostats may have indicator lights or display messages to inform users when the thermostat is in recovery mode. 7. Disabling or Adjusting Recovery Mode: a. User Control: Users typically have the option to disable or adjust the recovery mode settings based on their preferences and specific needs ...If you want to get your thermostat out of recovery mode, the easiest way is to take a look at your thermostat’s settings. Your thermostat manual should give you all the information you need to get to this setting. If you are not sure, we would be delighted to help you. We might be able to do this over the phone or we might need to pay you a ...Web connected thermostats are great, but they're expensive. If you want to make your own, blogger and engineer Nooganeer shows how to build one using a Raspberry Pi and an old iPho...Touchscreen. The best overall thermostat for the heat pumps is the Ecobee3 lite smart thermostat. It offers excellent functionality at a reasonable price for what you’re getting. Plus, it integrates without your existing smart home system, and if you don’t have a smart system yet, it won’t lock you into a certain brand.Remove your thermostat from the wall, and open the battery holder on the side of your thermostat. Remove the old batteries and clean the inside of the holder. Insert the fresh set of batteries and close the battery holder. Remount the Honeywell thermostat on the wall again. Ensure that it clicks into position.Read online Honeywell Thermostat TH4110D1007 User Manual pdf with better navigation.Printable and downloadable Honeywell TH4110D1007 user guide pdf. This thermostat is pre-set with energy-saving program settings. We recommend these settings, since they can reduce your heating/cooling expenses by as much as 33%.

If the "wait" message on your Honeywell thermostat is persistent and will not go away, you can try the following steps to resolve the issue: Power Cycle the Thermostat: Turn off the thermostat and remove the batteries for about a minute. Then put the batteries back in and turn the thermostat back on. Check Wiring: Make sure all the wires ...1 HONEYWELL CT3400 PROGRAMMABLE THERMOSTAT. 2 STEP 1 Prepare For Installation. 2.1 STEP 2 Remove the Old Thermostat. 3 Adaptive Intelligent Recovery™ Selection. 3.1 STEP 4 Program The Thermostat. 3.2 Personal Programming Chart. 3.3 STEP 5 Mount Thermostat Wallplate. 3.4 STEP 8 Wire Wallplate Terminals. 3.5 STEP 9 Mount The Thermostat.Honeywell Home RTH7500D1049/E1 rt drz, Large, White ... Air Conditioner Boiler Dehumidifier Electric Baseboard Heater Furnace Heat Pump Humidifier. Top Brands in DIY & Tools. Top Brands. ... Honeywell Home RTH7560E 7-Day Flexible Programmable Thermostat-Extra-Large Backlit Display, White.The thermostat honeywell T6861 Super modern appearance design, suitable for office, hotel and residential building. • Horizontal and vertical model available for variant application. • Slim design, direct installation on 86 size box. • Stylish and elegant blue/green backlight with blue/ green colour ring. • 2-pipe/4-pipe integrated into ...Your air conditioner is only designed to cool the house about 25 degrees below the outdoor temperature. If it's any cooler inside or any warmer outside, you might cause your A/C to malfunction. One of the signs is running in recovery mode where the compressor isn't running but the fan is. 1.With a standard programmable thermostat, the time that you program it to turn the temperature up or down is the time that your heating or air conditioning system will come on. This means that if you have the thermostat programmed so that the temperature increases from 60 to 70 degrees at 4 p.m., your heating will then come on at exactly that …

Locate the reset button on the thermostat. 2. Press and hold the reset button for 5 seconds. 3. Release the reset button and wait for the thermostat to reset. 4. Set the desired temperature and adjust any other settings as needed.Step 3 - Reset the Breakers. Resetting your HVAC equipment from the circuit breaker can help you fix the Wait message if changing the batteries does not work. But first, you must turn off your HVAC equipment and thermostat. Once that's done, find the controls for the HVAC equipment and power them off.Honeywell has made a business out of helping homes be more comfortable. Today, it is one of the leaders in providing solutions for connected homes, including delivering a variety o...Step 1. Change the Temperature. The first thing you can do if your thermostat display is on, but doesn’t power on the HVAC system, is to adjust the temperature. So, first, try changing the temperature on your Honeywell thermostat. Also, make sure the desired temperature falls within the acceptable ranges.Here are four tips you can use to troubleshoot your Honeywell thermostat. 1. Replace the Batteries. The first thing to check is the batteries. If the batteries are dead, the thermostat will not turn on. To replace the batteries, follow these steps: Turn off the power to the thermostat from the circuit breaker.

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Try Resetting the Thermostat to Factory Settings. 1. Honeywell Lyric Y Family. You must press the reset button and wait for 5-10 seconds, later release the button. 2. Honeywell 4000/6000/8000. Press and hold the “Reset” button for 5-10 seconds. Release the “Reset” button. 3.Buy Honeywell TH1100DH1004 PRO 1000 Horizontal Non-Programmable Thermostat - One Stage Heat. Honeywell technical support information, product brochures and more. ... Resume / Adaptive Intelligent Recovery Capability. No. Backlit Display. Yes. On-Screen Help. No. Auto Changeover. No. Memory Back-Up. Yes. ... AC Installation Supplies. …Page 11: Programming Your Thermostat. PROGRAMMING YOUR THERMOSTAT STEP 1 Press and release. The display PRESENT SET THE CURRENT DAY AND TIME shows 1:00 PM Mon. DAY/TIME You can program this thermostat either Press and hold until the current on the wall or in your hand. SEE day appears in the display.Dec 2009. Location. northeast pa. Posts. 118. Post Likes. Originally Posted by superfliez. A friend of mine has honeywell chronotherm III thermostat and it is displaying AC on the display. Unit sometimes run for about few minutes then stop then few hours later it start to run again for few minutes then stop again.Hard Resetting, or Factory reset Honeywell RTH7600D Requires you to. A, Remove it from the wall. B, Remove the batteries so it has no power source at all. C, Leave it sit on your counter for 45 mins or greater. Wait a hour just to be sure. I was told this by a Honeywell phone rep today, after numerous searches online.One of the most frequent reasons for a red light is a low battery. When the thermostat's battery power is running low, the red light may start blinking rapidly or remain lit steadily. This signal prompts you to replace the batteries promptly to ensure uninterrupted operation. 2. Heating or Cooling System Malfunction.

Press and hold the “Reset” button for 5-10 seconds. Release the “Reset” button. Honeywell 4000/7000/9000 Thermostats. Press the “Menu” button on your Honeywell …Low batteries: Replace the batteries periodically, even if there is no "Replace bat" message . For older analog models, ensure the thermostat is mounted level on the wall and located about 5 feet from the floor. Remove the cover and check for dust, dirt, or corrosion, cleaning it with a soft brush or cloth if necessary.The 8000 series of Honeywell Thermostat are one of the best and most advance thermostats having a lot of new features and Wifi compatibility. You can schedule programs, control humidity, ventilation, and many other features through your smartphone. The “My Total Connect Comfort” web portal and the Honeywell App can also be used to …Tips to Fix Cooling Issues in a Honeywell Thermostat Set Your Thermostat to Cool Mode. Your Honeywell thermostat may not cool your room if you don't set the device to Cool mode.. To activate cool mode on your thermostat, tap Mode on the device screen until the mode changes to Cool.Also, press the minus button on the left side of the screen to achieve your preferred temperature setting.Checking Thermostat's Calibration - Thermostat calibration is a term related to thermostat repair. Learn about thermostat calibration. Advertisement Here's how to check a thermosta...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.No, it is not bad if your thermostat goes into recovery mode. It is a good thing that shows that your thermostat is working properly and efficiently. Recovery mode is a feature that helps you save energy and money, improve comfort, and extend the life of your HVAC system.If you want to get your thermostat out of recovery mode, the easiest way is to take a look at your thermostat’s settings. Your thermostat manual should give you all the information you need to get to this setting. If you are not sure, we would be delighted to help you. We might be able to do this over the phone or we might need to pay you a ...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.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.

If you have a Honeywell thermostat and the screen is completely blank, it could be due to a lack of batteries. The reason why your thermostat needs batteries is because they provide power when there are no other sources available. Without them, the display would stay blank as without any power source, there would be nothing to show on the screen.

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.Honeywell Thermostat Not Controlling AC. If your thermostat settings, mode, schedules and commands fail to activate the AC, try these tips: Check Wiring: Inspect the wiring connections to ensure all labeled thermostat terminals and color-coded wires match the wiring diagram specifications for your HVAC system. Rewire incorrectly connected cables.Advertisement. ‌ Honeywell Pro Series T4: ‌ Press Unlock on the screen and enter a four-digit PIN on the prompt. If you haven't set one up, the default is 1234. Use the +/- keys to scroll to each digit, and use the Select key to advance to the next digit. Once you've entered the PIN, the thermostat is unlocked.Start by removing the G wire from the G terminal and insert it into the C -terminal. Then go to the furnace terminal block and do the same, removing the wire from the G terminal and hooking it to the C-terminal. After that, you should now put a jumper between the G terminal and the Y terminal so that when cooling is energized the fan will also ...Conclusion: Resolving the Cool On Blinking Issue on Your Honeywell AC Thermostat. In conclusion, the Honeywell AC thermostat is a reliable and feature-rich device that offers precise temperature control and energy efficiency. It allows users to program schedules, integrate with smart home systems, and save energy with various modes.Okay, here is a test. Remove thermostat from top wall mount plate. You will see thermostat wires attached to lettered terminals. Locate R and G, then use a paper clip shaped in a U - touch one end to R while touching other end to G. If the fan/blower starts, it is a thermostat issue. If the blower does not start, it is the furnace not sending ...WiFi Thermostats. With WiFi Thermostats like our Honeywell Home T9 Smart Thermostat, we bring you helpful, connected products so you can enjoy optimal comfort in your home. Shop online or connect with a Pro for consultation and installation to help manage energy costs while maintaining a comfortable temperature. Home. Shop All Products.

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If you have a heat pump, you will not use a wire in the W terminal. Move the W wire to the W2 or Aux terminal. (W controls your first stage of heating for Gas/Oil/Electric systems. O/B and Y control your first stage heating for heat pump systems. Backup heat sources must be connected to the W2, Aux, or E terminal for proper functionality.)The Honeywell 8000 thermostat is a popular choice for homeowners looking to upgrade their heating and cooling systems. With its sleek design and advanced features, this thermostat ...Honeywell Home T9 Wi-Fi Smart Thermostat - RCHT9510WFW. Video. Availability: In Stock. Price: $179.99 $249.99. You Save: $70.00 (28% Off) - 7 Customer Reviews. Add to Cart. Color Graphical LCD touchscreen display.Reason 3: Bad Wiring. If the batteries are replaced and the thermostat is still not turning on the AC, there’s a high chance that it has some wiring issues. If that’s the case, you will notice some strange behavior from your AC, apart from being unresponsive. The AC won’t maintain the temperature set in the thermostat.Low batteries: Replace the batteries periodically, even if there is no "Replace bat" message . For older analog models, ensure the thermostat is mounted level on the wall and located about 5 feet from the floor. Remove the cover and check for dust, dirt, or corrosion, cleaning it with a soft brush or cloth if necessary.The Honeywell Home T10 Pro THX321WFS is part of the Thermostats test program at Consumer Reports. In our lab tests, Smart Thermostats models like the T10 Pro THX321WFS are rated on multiple ...Honeywell Thermostat Reset. Resetting your Honeywell thermostat is easy and can be done in a few simple steps. First, turn the power off to your thermostat for about 10 seconds to reset any existing settings. Then, remove the cover of your thermostat and locate the reset button (usually located near the battery compartment).Reason 3: Bad Wiring. If the batteries are replaced and the thermostat is still not turning on the AC, there's a high chance that it has some wiring issues. If that's the case, you will notice some strange behavior from your AC, apart from being unresponsive. The AC won't maintain the temperature set in the thermostat. ….

Disconnect all the wires connected to the thermostat. Make sure you don't mix them up while reconnecting. Remove the device from the wall plate. Remove the batteries and wait for five minutes. Replace the batteries and reconnect the wires. Turn on the system and wait for five minutes.You might see your Honeywell thermostat that says that the heat is on, and yet you get no heat. This can happen for many reasons. A broken thermostat, incorrect wiring, tripped circuit breakers, blown fuses, or a broken HVAC system could cause this. Here, we describe some of these causes, and then offer troubleshooting techniques and repair ... 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 Reason 3: Bad Wiring. If the batteries are replaced and the thermostat is still not turning on the AC, there's a high chance that it has some wiring issues. If that's the case, you will notice some strange behavior from your AC, apart from being unresponsive. The AC won't maintain the temperature set in the thermostat.First, check the batteries in the thermostat to make sure they are still good. If the batteries aren't providing enough power, replace them and see if that resolves the issue. If not, you should try cleaning any dust or debris from around the unit as this could also be interfering with its performance.Turning on the cool function of your Honeywell thermostat is a relatively simple process. First, turn the top dial to "cool" and make sure that it clicks into place. Then use the up and down arrows to set your desired temperature (the lower the number, the cooler). Finally press either "Run" or "Hold". If you select "Run", then ...2. Check and Replace the Batteries. Most of the latest models of Honeywell thermostats run on batteries. If you have also gotten one of those and the backlight suddenly stops working, chances are the batteries are low/completely drained. So check to see if the batteries are low and get them replaced.Mar 2, 2021 · Ensure Everything Is on Power. If you notice your Honeywell thermostat not working, you may want to check your whole system. Check whether it is using power or not. This includes making sure the thermostat, air handler, and the outdoor unit are all running on power. This way, you may be able to narrow down the issue. Last updated. 5/12/23. First, choose your thermostat from the menu below. Then follow the directions for the type of reset you need. Try a different reset if the one you tried does … Honeywell thermostat in recovery no ac, Recovery mode is something of a self-fulfilling cycle: With the right settings, you can effectively remove your smart thermostat’s need for recovery mode. This can be done by keeping your temperature settings relatively close together – if the thermostat is only moving by a couple degrees within a given day, it won’t need recovery mode ..., Tapo L535E Colour Bulb. Tapo E200 Smart Thermostat. the next two items are a colour bulb, capable of the standard 16m colours, whilst also boasting a CRi of 90. As it's WiFi, it's already entering a crowded market, with that market almost certainly gradually switching over to Thread, which may make it an unpopular choice these days., Remove your thermostat from the wall, and open the battery holder on the side of your thermostat. Remove the old batteries and clean the inside of the holder. Insert the fresh set of batteries and close the battery holder. Remount the Honeywell thermostat on the wall again. Ensure that it clicks into position., 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 …, Manage your smart home comfort from anywhere with the WiFi 9000 Color Touchscreen Thermostat. Monitor or adjust your heating and cooling temperatures via computer, smartphone, or tablet. Stay aware with system alerts via email or the Total Connect Comfort app. SELECT A MODEL: WiFi 9000 Color Touchscreen Thermostat., To check the underline code behind the warning sign, follow these steps below: Step 1: The alert icon appears on the Home screen. Step 2: Press Menu, and then press until the display shows ALRT. Step 3: Press 'Select' to display which alert (s) are present. Step 4: The message REPL (REPLACE AIR FILTER) appears., 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 take to diagnose and resolve this problem. 1...., Honeywell Thermostat - AC not cooling TroubleshootThis video is some basic trouble shooting and maintenance for your AC - Air conditioning. These are some he..., This item: 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 $124.99 $ 124 . 99, This thermostat is ready to go! Your new thermostat is pre-programmed and ready to go. See page 3 to check settings. Table of contents CAUTION: EQUIPMENT DAMAGE HAZARD. To prevent possible compressor damage, do not oper-ate cooling system when outdoor temperature is below 50˚F (10˚C). VisionPRO® TH8000 Series, Your air conditioner is only designed to cool the house about 25 degrees below the outdoor temperature. If it's any cooler inside or any warmer outside, you might cause your A/C to malfunction. One of the signs is running in recovery mode where the compressor isn't running but the fan is. 1., 2. Check and Replace the Batteries. Most of the latest models of Honeywell thermostats run on batteries. If you have also gotten one of those and the backlight suddenly stops working, chances are the batteries are low/completely drained. So check to see if the batteries are low and get them replaced., Low Batteries. A blinking "Cool On" message can appear due to dying batteries, a power surge, or a power outage. Thermostat batteries last for an average of 10 months, so it is easy to tell when dead batteries are the culprit. Sometimes, a Honeywell thermostat can bounce back after a power outage without requiring a reset., If your system frequently enters recovery mode or consistently fails to achieve the desired temperature on schedule, it could indicate problems with …, First, it could be an issue with the thermostat. If the thermostat is not set properly, it can cause the AC unit to cycle on and off more frequently than normal, which can lead to the unit going into recovery mode. Another possibility is that the AC unit is not sized properly for the space it is cooling. If the unit is too small for the space ..., Tapo L535E Colour Bulb. Tapo E200 Smart Thermostat. the next two items are a colour bulb, capable of the standard 16m colours, whilst also boasting a CRi of 90. As it's WiFi, it's already entering a crowded market, with that market almost certainly gradually switching over to Thread, which may make it an unpopular choice these days., Share This Guide. 8 Reasons for Your Honeywell Thermostat Not Cooling. 1) Thermostat Not Set to Cool Mode. 2) Furnace Door Not Closed. 3) Furnace Circuit Breakers. 4) Issues With Thermostat Wiring. 5) Thermostat Not Correctly Configured. 6) Malfunctioning Reverse Valve. 7) Low Thermostat Batteries., 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®., Hold down the Fan & Up button together for 3-5 seconds. Press Next until you see Function 13. Change option to 0 turn it off Recovery Mode. Press Done to save …, Remove your thermostat from the wall, and open the battery holder on the side of your thermostat. Remove the old batteries and clean the inside of the holder. Insert the fresh set of batteries and close the battery holder. Remount the Honeywell thermostat on the wall again. Ensure that it clicks into position., 2. Check and Replace the Batteries. Most of the latest models of Honeywell thermostats run on batteries. If you have also gotten one of those and the backlight suddenly stops working, chances are the batteries are low/completely drained. So check to see if the batteries are low and get them replaced., Preservation of HVAC Equipment: The gradual adjustments facilitated by the "In Recovery" mode contribute to the preservation of HVAC (heating, ventilation, and air conditioning) equipment. By avoiding sudden, extreme temperature changes, the system operates more efficiently, reducing wear and tear on components and potentially extending the ..., T6 PRO PROGRAMMABLE THERMOSTAT Manual & Support. TH6320U2008/U, TH6220U2000/U, TH6210U2001/U. Download Manual Download Installation Guide. Download Service Datasheet. T6 PRO PROGRAMMABLE THERMOSTAT Product Page., WIFI 9000 COLOR TOUCHSCREEN THERMOSTAT Manual & Support. TH9320WF5003/U. Download Manual Download Installation Guide. Download Service Datasheet. WIFI 9000 COLOR TOUCHSCREEN THERMOSTAT Product Page., Clean Screen: The Clean Screen feature disables the thermostat screen for 30 seconds. Wipe your thermostat with a clean, damp cloth. After the timer runs out, the thermostat screen is reactivated and returns to the main display. Temp Scale: You can adjust the temperature display settings at any time., Honeywell RTH230B thermostats stop working when the breaker trips, a fuse blows, and the batteries die. Clogged air filters cause a Honeywell RTH230B to stop working entirely or increase heating and cooling bills. Reset your circuit breaker and replace blown fuses after electrical surges or power outages to fix your Honeywell RTH230B thermostat., Press the button below System on your Honeywell thermostat. This will reveal a blank box. Hold the blank box until your Honeywell thermostat's screen changes and displays your Model ID. Most Honeywell thermostats' Model ID starts with TH or RH and ends in numbers. Next, tap on the Menu option., This happens most days. The only way I can stop it is by switching the Chronotherm to Off, waiting for the system and blower to stop, then switching the Chronotherm back to Heat. Download the Installation Manual from the web. It easily describes how to change the adaptive recovery setting to conventional., Recently upgraded our old furnace to a new 2-stage one, and got a new smart thermostat in the process. Now though, we find it's not following the schedule properly in the morning. We've had these two scenarios happen back to back: Set wakeup for 7am, 70 degrees F. Get woken up at 5am to a 68 degree and climbing house as it's trying to warm to 70., Step 3: Reset the Thermostat. If the thermostat is still not turning on, perform a factory reset. This can resolve any software issues that may be causing the problem. Note: Performing a factory reset will erase all settings and restore the thermostat to its default state., 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., Installing your thermostat 9e Select your system type and touch Next. The system type determines other selections for completing initial setup. Use the checklist from Step 6A-d when making selections. 9f Touch Next after making selections on each screen. Next 9g Touch Done on the last screen., In this new menu, change the left value to 0670 using the up/down buttons in the middle of the display. Then, change the right value to 0 using the up/down buttons on the right. Press "DONE" on the lower right to confirm. This will help unlock or bypass a screen-locked 8000 series thermostat.