Honeywell thermostat remove hold

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.

Clearing a Program Period The thermostat must be in the program mode to use the clear feature. Go to step 2 if the thermo- stat is already in the program mode (Set Program displays in upper left corner). 1. Press Leave, Return or Sleep key to enter program mode.How to reset a ‘filter change’ indicator on a honeywell proseries thermostat; Step 1 : Press Menu, and then press until display. shows ALRT. Step 2: Press Select to display which alert (s) are. present. Step 3: The message REPL (REPLACE AIR FILTER) appears. Step 4: To reset or clear, press Select, and then press to go. to CLER (Clear).16. 7.7K views 8 months ago. How to Remove a Temporary Hold on Your Honeywell Thermostat • Stuck on a temporary hold with your Honeywell thermostat? Don't worry, we've got you...Watch this video for help remove your existing thermostat. Part Two of the Lyric installation guide.Subscribe on YouTube: https://www.youtube.com/channel/UCr...Thermostats Take control of your home comfort and save on energy costs with a range of Honeywell Home thermostats. From smart WiFi thermostats with room sensors and humidification control, to programmable and non-programmable thermostats, Honeywell Home products meet a variety of needs.

To cancel the Permanent Hold, press + or - and then press Cancel. To Remove the Schedule completely. Press and hold Menu and + buttons for approximately 5 seconds to enter advanced menu. Press Select to enter System Setup (ISU) menu. Press Select to cycle through System Setup numbers. Press + or - to change values or select from available options.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.FIND THE USER GUIDE FOR YOUR THERMOSTAT. First, let's identify your device. Select the product you’re having trouble with from the options below. komfort. komfort. valve-sizing. rondostat-videos. brochure-l5-emea.Understanding ‘Hold’ Feature in Honeywell Thermostat. The ‘Hold’ feature on Honeywell thermostats plays a pivotal role in regulating your home’s temperature. ... – Clean the touchscreen to remove any dirt or smudges. If the issue persists, consult your user manual for touchscreen calibration instructions. 9. Battery-Related Problems6 days ago · Turn Off the Schedule. Tap or press on “Menu” on the home screen. Use the left and right arrow buttons to scroll to the “SCHEDULE” or “PROG” setting. Then, tap on “Select”. After that, press the “Sched.On/Off” button to enable/disable the schedule or simply use the left and right arrows to toggle the setting to “Off”. Most Honeywell thermostats can be cleared by pressing the HOLD button for several seconds. WiFi-enabled and Smart thermostats require a series of steps to make a permanent change to the program. Temporary changes can typically be made simply by pressing the temperature change buttons. ... To remove the hold, click on “Hold until …Most Honeywell thermostats have a cover that can be easily removed by pressing the tabs on the sides or top and bottom of the unit. Once you’ve located the tabs, gently press them and remove the cover. Disconnecting the Wires. Once the cover is removed, you’ll see the wires connecting the thermostat to your heating and cooling …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 Cancel or Remove Hold.

To clear the schedule on your Honeywell thermostat, you first need to access the schedule menu. Start by pressing the “Menu” button on your thermostat. This will bring up the main menu options on the display. Look for an option that says “Schedule” or something similar. The location of the schedule menu may vary depending on the model ...A Honeywell thermostat has a feature whereby you can raise or lower the temperature settings during a hold, depending on your preferences. The Honeywell thermostat has the plus and the minus buttons that are used to adjust the temperature. The temporary hold is also known as the hold since it works according to the hold settings.Page 9 Connecting to your Wi-Fi network 1 Connect to your thermostat. 1a Make sure the thermostat displays Wi-Fi SETUP. 1b On the wireless device (tablet, laptop, HOLD smartphone), view the list of available Wi-Fi networks. 1c Connect to the network called NewThermostat_123456 (the number will vary). 4. Navigate to the current temperature setting: Use the up and down arrows or other navigation buttons on the thermostat to scroll through the programming options and locate the current temperature setting. 5. Remove the temporary hold: Once you have found the current temperature setting, you should see an indicator that shows a temporary hold ...

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Get step-by-step instructions from verified Tech Support Specialists. For temperature adjustment, press + or -. The setpoint temperature flashes and the message TEMPORARY HOLD is displayed. Press the Hold (Mode) button to switch to Permanent Hold while it is flashing. Press + or -, and then press Cancel to end the Permanent Hold.The -Hold Options- page, showing the -Cancel Hold- button. Pressing Cancel Hold stops both Permanent Hold and Temporary Hold. 3. Tap the Cancel Hold Button. When you touch the Cancel Hold option, this removes the permanent hold, and the thermostat then returns to Following Schedule mode.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 ...69-2715ES—01 4 Features of your Wi-Fi thermostat With your new thermostat, you can: • Connect to the Internet to monitor and control your heating/cooling system • View and change your heating/cooling system settings • View and set temperature and schedules • Receive alerts via email and get automatic upgrades Your new thermostat provides: • …View and Download Honeywell Home VisionPRO TH8320R1003 user manual online. VisionPRO TH8320R1003 thermostat pdf manual download. Also for: Visionpro th8110r1008, Visionpro th8321r1001, Visionpro yth8321r1002, Visionpro th8320r1003/u. ... To replace the batteries: MCR34145 1 Remove the sensor from the bracket. 2 Detach cover.

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 ...2 days ago · A Honeywell Home thermostat displaying its -Home- screen. Showing the -Hold- button in Temporary Hold mode. 2. Tap the Hold Button to Continue with Remove Temporary Hold on Honeywell Home Thermostat. Find the Hold button near screen center and bottom. Now as stated above, it may say either Temporary Hold or Permanent Hold. Dec 25, 2023 · But this same procedure works when Temporary Hold is in effect. It’s just the name of the Hold button that changes. 1. Go to the Honeywell Thermostat’s Home Screen. Here’s a shot of our t-stat’s Home page we show next. The Hold button may say either Permanent Hold , or indicate Temporary Hold is in effect by saying when the current Hold ... View and Download Honeywell Home TH8110R1008/U manual online. TH8110R1008/U thermostat pdf manual download. Also for: Th8321r1001, Th8321wf1001, Th8320r1003, Th8110r1008, Visionpro 8000. ... Residential MCR34102 1. Touch to adjust the temperature (right side of screen) and the Hold Until time (left side). Page 63: Viewing Equipment …If you have an older thermostat with a sealed mercury tube, turn to page 2 for proper disposal instructions. Terminal designation C C MCR31537 2 Remove Old Thermostat Remove old thermostat but leave wallplate with wires attached. 4 Separate Wallplate from New Thermostat Remove wallplate from the new thermostat and mount onto wall.Tap the Hold Button to Continue with How do you Remove the Permanent Hold on a Honeywell Thermostat. The next step is to tap the hold button on the bottom right corner of the screen. This will open a pop-up window with two options: cancel hold and resume schedule. 3. Tap the Cancel Hold Button.111 Honeywell HELPING YOU CONTROL YOUR WORLD 69-0313-1 s.M. OHor,eywe111989. Monitor thermostat operation, read current time and room temperature at a glance. Features Check status lights to see if the thermostat is on and saving energy, even in the dark (some models only). PERIOO Set the tempera- ture warmer or cooler at …For Total Connect Comfort Users: If you have access to the previous account, delete the thermostat by logging into the Honeywell My Total Connect Comfort account here and selecting MY LOCATIONS listed towards the top of the screen. Select the cogwheel labeled SETTINGS and scroll down to locate the Mac ID and CRC number for …To do this, find the various schedules on the display on your thermostat. Press the set button to get past the time and day. When you get to a scheduled time you want to cancel, press the hold button for about 5 seconds. Once the numbers on your screen changes to zero, press “Set” to lock in the changes.Shop programmable thermostats to help manage energy costs and maintain comfort. Set a daily heating/cooling schedule with thermostats such as the T5 7-Day Programmable Thermostat for low-maintenance control of your home's temperature. Shop online or contact a pro for installation. Home. Shop All Products. Air.Dismount the thermostat from the wall plate. 4. Remove the 2 AA batteries that power the thermostat. 5. Put in the batteries in reverse polarity. ... T5+, and T6 Honeywell thermostats: 1. Press and hold Menu for 5 seconds. 2. Scroll using < or > to the Reset function. 3. Press Reset. 4. A prompt will ask you, Are You Sure. 5. Press Yes. …When the thermostat goes bad in a Honda CRV, you risk causing serious damage to the engine if you do not replace it. Replacing the thermostat is much cheaper and easier then replac...

A Honeywell Home thermostat displaying its -Home- screen. Showing the -Hold- button in Temporary Hold mode. 2. Tap the Hold Button to Continue with Remove Temporary Hold on Honeywell Home Thermostat. Find the Hold button near screen center and bottom. Now as stated above, it may say either Temporary Hold or Permanent Hold.

This manual is also suitable for: View and Download Honeywell Home VisionPRO TH8320R1003 user manual online. VisionPRO TH8320R1003 thermostat pdf manual download. Also for: Visionpro th8110r1008, Visionpro th8321r1001, Visionpro yth8321r1002, Visionpro th8320r1003/u.The T4 has three steps for unlocking: Press the word ‘Unlock’ on the screen and you will be prompted to enter a 4-digit password. If you have not set up a password, the default is 1234. Use the +/- buttons to choose each digit of the password. You can move on to the next digit by pressing ‘Select.’.To clear the temporary hold on your Honeywell thermostat, follow these steps: 1. Press the “Hold” button on the thermostat. 2. Use the arrow keys to select the desired temperature. 3. Press the “Hold” button again to confirm and clear the temporary hold. 4. Your thermostat will now resume its regular programming. Conclusion ...Here is what you need to do to remove a permanent hold on your Honeywell thermostat: Unlock your Honeywell thermostat. Search for the Schedule Hold icon. Tap on it. Based on your model, you will have a different option for removing the hold. Tap on any of the following options shown: Remove Hold, Cancel Hold, Cancel, Use …View and Download Honeywell TH8320R1003 Vision Pro 8000 product data online. TH8320R1003 Vision Pro 8000 thermostat pdf manual download. Also for: Th8321r1001 vision pro 8000, Th8110r1008 vision pro 8000. ... Remove the wallplate from the wall and, if drywall, drill with good air circulation at average temperature. Page 11: Wiring The ...For Total Connect Comfort Users: If you have access to the previous account, delete the thermostat by logging into the Honeywell My Total Connect Comfort account here and selecting MY LOCATIONS listed towards the top of the screen. Select the cogwheel labeled SETTINGS and scroll down to locate the Mac ID and CRC number for …Get step-by-step instructions from verified Tech Support Specialists. For temperature adjustment, press + or -. The setpoint temperature flashes and the message TEMPORARY HOLD is displayed. Press the Hold (Mode) button to switch to Permanent Hold while it is flashing. Press + or -, and then press Cancel to end the Permanent Hold.First, ensure that you turn on the thermostat. Next, hold the “menu” button for a few seconds. Finally, choose the “reset” option on your thermostat screen. Once you choose the “reset” option, the question …Tap and hold the blank key in the bottom center of the keypad till the display changes. Change the digits on the left side to ‘0670’, using the up and down keys in the middle of the screen. Change the digit on the right-hand side to 0 with the help of the up/down keys. Tap “Done” on the screen to complete the unlock.Turn off the power. Remove the thermostat cover. Locate the reset button. Press and hold the reset button for 10 seconds. Release the button. Replace the cover. Turn the power back on. For programmable thermostats, the process is similar, but you will need to locate the specific reset button for your thermostat type.

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Press and hold down reset button: After disconnecting all sources of energy, find a small hole at the back side or bottom side of your Honeywell Thermostat which contains a tiny red button inside it; press and hold this button until all lights on display turn off (it may take up to 10 seconds) Re-Connect Power Source & Batteries: Now connect ... Thermostats Take control of your home comfort and save on energy costs with a range of Honeywell Home thermostats. From smart WiFi thermostats with room sensors and humidification control, to programmable and non-programmable thermostats, Honeywell Home products meet a variety of needs. To reset the system’s schedule, press the System button. Next, hold the blank box that’s in the center of the screen. When the numbers panel comes up, enter 0165 on the left and the number one on the right. Now press Done and your thermostat should have a reset schedule.Before you do that though, you’ll have to unlock your Honeywell Thermostat. Subject to the model you own, you can do this by tapping on one of these options – Cancel, Cancel Hold, Remove Hold, Run, Run Schedule, Use Schedule. Some models may have a ↵ button dedicated to cancel a temporary hold.Knowing how to remove a hold on a Honeywell thermostat is essential for regaining control of your home's temperature settings. A hold feature temporarily overrides the programmed schedule, maintaining a constant temperature until manually adjusted. Removing the hold allows the thermostat to resume its regular programming.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.Hold down the key icon at the bottom center until it changes. Change the digits on the left side of the screen to "0670." While the digit on the right hand should be changed to "0." Press "done" when you have …On a Honeywell thermostat, a message that says ‘temporary’ indicates that the device is on a temporary hold. During this period, the thermostat will keep the temperature in your house at a certain setting. Once the temporary hold expires, the device will get back to its normal schedule. You get to decide when the temporary hold should …What Is Temporary Hold On Honeywell Thermostat?-----James Webb (2022, August 8.) What is temporary hold on Honeywell Thermostat? WHYS.videoCopyright ...Page 9 Connecting to your Wi-Fi network 1 Connect to your thermostat. 1a Make sure the thermostat displays Wi-Fi SETUP. 1b On the wireless device (tablet, laptop, HOLD smartphone), view the list of available Wi-Fi networks. 1c Connect to the network called NewThermostat_123456 (the number will vary).To cancel the Permanent Hold, press + or - and then press Cancel. To Remove the Schedule completely. Press and hold Menu and + buttons for approximately 5 seconds to enter advanced menu. Press Select to enter System Setup (ISU) menu. Press Select to cycle through System Setup numbers. Press + or - to change values or select from available options.Before you do that though, you’ll have to unlock your Honeywell Thermostat. Subject to the model you own, you can do this by tapping on one of these options – Cancel, Cancel Hold, Remove Hold, Run, Run Schedule, Use Schedule. Some models may have a ↵ button dedicated to cancel a temporary hold. ….

What is temporary hold? Last updated. 2/22/22. The temporary hold setting is when you change the temperature setting to a different temperature and it stays at that setting until the next schedule change. The permanent hold setting holds the temperature setting you have chosen for an indefinite time. This overrides your scheduled settings.Honeywell Home RTH6360D 5-2 Day Programmable Thermostat. Video. Availability: In Stock. Price: $59.95 $83.95. You Save: $24.00 (28% Off) - 5 Customer Reviews. Add to Cart. Flexible programming: 5-2 day or 1-week programming. Large backlit display shows current room temperature and set point temperature simultaneously.On a Honeywell thermostat, a message that says ‘temporary’ indicates that the device is on a temporary hold. During this period, the thermostat will keep the temperature in your house at a certain setting. Once the temporary hold expires, the device will get back to its normal schedule. You get to decide when the temporary hold should expire.This manual is also suitable for: View and Download Honeywell Home VisionPRO TH8320R1003 user manual online. VisionPRO TH8320R1003 thermostat pdf manual download. Also for: Visionpro th8110r1008, Visionpro th8321r1001, Visionpro yth8321r1002, Visionpro th8320r1003/u.Available under the Fan setting, the Circulate feature turns on the fan for 30% of the time every hour in order to circulate the air in your home. Hold: When using a schedule or geofencing, the thermostat enables the Hold feature. 2 types of Holds are available, Temporary and Permanent. (When Geofencing is enabled, Permanent Hold is disabled.)If you have an old Android phone sitting around collecting dust, and you've been pining for smart thermostat but don't want to drop the cash on one, then the Android Thermostat mig...To effectively maintain your Honeywell pro series thermostat, gather the following tools and materials: a soft cloth for cleaning, a small brush, a level, a screwdriver set, and fresh batteries. These essentials will aid in cleaning, calibration, and Honeywell thermostat battery replacement, ensuring your it operates smoothly and efficiently.The simplicity of the Honeywell Home PRO 2000 vertical thermostat from Resideo makes it an easy upgrade from basic up-down temperature controls without committing to a WiFi-connected thermostat. The PRO 2000 vertical thermostat has a large, backlit screen that is easy-to-read and features a real-time clock, with simple push-button controls.Dec 31, 2022 ... Is your thermostat not turning on the heat? It does not fire up the furnace when it is supposed to and the temperature in the house keeps ... Honeywell thermostat remove hold, Apr 21, 2023 · To set a permanent hold on your Honeywell Thermostat, follow these simple steps: Press the “Menu” button on your thermostat. Select “Permanent Hold” from the menu options. Use the “+” or “-” buttons to adjust the temperature to your desired setting. Press “Done” to save your settings and exit the menu. Once you have set a ... , 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 …, 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., Watch this video for help remove your existing thermostat. Part Two of the Lyric installation guide.Subscribe on YouTube: https://www.youtube.com/channel/UCr..., Honeywell Home T4 Pro User Manual View and Read online. Thermostat controls. System operation settings. Program Schedule. Est. reading time 10 minutes. T4 Pro Thermostat manuals and instructions online. Download Honeywell Home T4 Pro PDF manual., The -Hold Options- page, showing the -Cancel Hold- button. Pressing Cancel Hold stops both Permanent Hold and Temporary Hold. 3. Tap the Cancel Hold Button. When you touch the Cancel Hold option, this removes the permanent hold, and the thermostat then returns to Following Schedule mode., 1 Press and hold Menu and + buttons for approximately 5 seconds to enter advanced menu. 2 Press Select to enter System Setup (ISU) menu. 3 Press Select to …, Will : lets go for 78 or 77 just manually press hold temp move to right push day push twice to get to two days see if we can make it go on 78 and you might have fixed it. after you get two days on the hold temp lower the temp with the lower button. Customer: just did that. Will :, The Savvy Professor. 12.5K subscribers. Subscribed. 0. No views 1 minute ago. How To Turn Off Temporary Hold On Honeywell Thermostat (Remove …, Apr 21, 2024 ... In this video tutorial, I show you and tell you how to hold the temperature permanently on your Honeywell programmable Thermostat., Thermostats Take control of your home comfort and save on energy costs with a range of Honeywell Home thermostats. From smart WiFi thermostats with room sensors and humidification control, to programmable and non-programmable thermostats, Honeywell Home products meet a variety of needs., 1. Go to the Honeywell Thermostat’s Home Screen. Here’s a shot of our t-stat’s Home page shown next. The Hold button may say either Permanent Hold , or …, 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., The -Hold Options- page, showing the -Cancel Hold- button. Pressing Cancel Hold stops both Permanent Hold and Temporary Hold. 3. Tap the Cancel Hold Button. When you touch the Cancel Hold option, this removes the permanent hold, and the thermostat then returns to Following Schedule mode., 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., Sep 8, 2022 · To use this feature: 1. Press the Menu button on your thermostat. Select Schedule. Select Hold/Run Schedule. Choose between Hold Until and Hold For options by pressing the corresponding button on your thermostat screen. If you choose Hold Until, press the + or – buttons to select when you want the hold to end (for example, in 6 hours) Then ... , Step 1: Shut off the power to the thermostat by switching off the appropriate circuit breaker in the home’s circuit breaker box. This precaution is crucial for electrical safety while working with the thermostat wires. Step 2: With the power shut off, the cover can be carefully removed either by pulling it straight out from the wall or ..., It will display more Hold options. Select the switch to the Permanent Hold button. The thermostats will be set to Permanent Hold mode. Then the Home screen will appear again. Instead of following the schedule option, the “Permanent Hold” mode will be displayed. This is how you set a Permanent Hold on Honeywell Thermostat. OR., 111 Honeywell HELPING YOU CONTROL YOUR WORLD 69-0313-1 s.M. OHor,eywe111989. Monitor thermostat operation, read current time and room temperature at a glance. Features Check status lights to see if the thermostat is on and saving energy, even in the dark (some models only). PERIOO Set the tempera- ture warmer or cooler at …, The unit, displaying its -Hold Options- page, with the -Cancel Hold- button highlighted. Pressing Cancel Hold ends both types of hold. 3. Tap the Cancel Hold Button. When you touch the Cancel Hold option, this removes the temporary hold, and the thermostat then returns to Following Schedule mode., If you have an older thermostat with a sealed mercury tube, turn to page 2 for proper disposal instructions. Terminal designation C C MCR31537 2 Remove Old Thermostat Remove old thermostat but leave wallplate with wires attached. 4 Separate Wallplate from New Thermostat Remove wallplate from the new thermostat and mount onto wall. , Watch this video for help remove your existing thermostat. Part Two of the Lyric installation guide.Subscribe on YouTube: https://www.youtube.com/channel/UCr..., Hold Hold The “Hold” feature turns off the program schedule and allows you to adjust the thermostat manually, as needed. Page 17: Compressor Protection RTH2510/RTH2410 About your new thermostat Built-in compressor protection This feature helps prevent damage to the com- pressor in your air conditioning or heat pump 6 : 30 system., Here, we explain the remove temporary hold on Honeywell Home thermostat procedure. Of course this begs the question of why would temp hold ever be ON in the first place? Well, the temporary hold feature lets the user override scheduled temperature settings. Then they can set the temperature manually. When a thermostat is following its …, Step 1: Shut off the power to the thermostat by switching off the appropriate circuit breaker in the home’s circuit breaker box. This precaution is crucial for electrical safety while working with the thermostat wires. Step 2: With the power shut off, the cover can be carefully removed either by pulling it straight out from the wall or ..., If it is enabled, just press the ‘disable recovery mode’ option. 2. Monitor the results. Give your Honeywell thermostat around a day to see if the recovery mode turns on. Likely, this should not worry you. If that period of the day ends and the thermostat switches into recovery mode, there is something wrong. 3., Press the “SET” button until “Set Schedule” is displayed on the LCD screen. Ensure that the thermostat controller is currently set to the function you want to program, either “Heat” or “Cool.”. To cancel a schedule, press and hold the up arrow button and the “Hold” button simultaneously for up to 4-seconds., How to deactivate temporary hold. When you want to deactivate the temporary hold mode again, press. “Run,” “Cancel,” “Run Schedule,” “Use Schedule,” …, The thermostat’s schedule is overridden and will stay inactive until you leave the “hold” mode” again. By using “hold” mode you don’t change any preset schedules – you put them just “on hold.”. ”Run” mode. The “run” mode allows you to return back to the originally preset schedule. You just press the “run” button ..., Most Honeywell thermostats can be cleared by pressing the HOLD button for several seconds. WiFi-enabled and Smart thermostats require a series of steps to make a permanent change to the program. Temporary changes can typically be made simply by pressing the temperature change buttons. ... To remove the hold, click on “Hold until …, The Honeywell ST9400C manual is an essential resource for anyone who owns or operates a Honeywell ST9400C programmable thermostat. This comprehensive guide will help you understand..., On other models, you have to press and hold the Second and fourth black buttons simultaneously. Use the arrow buttons to change the number on the lower-left corner of the screen to 0670. Press the arrow buttons again to get the number “0”. Press “DONE” to confirm. To unlock the thermostat using the code: Press “MENU”., Step 1: Hit the menu button as showing in the image below: Step 2: The first option that’s going to pop up is the hold as shown in the image below. Then hit the …