How Do You Unlock A Honeywell Home Pro Series ThermostatThe T9/T10, T5/T6, RTH9580WF, the RTH9585WF, and the TH9320WF (WiFi Color Touchscreen) all have a screen lock feature. If you have forgotten your 4-digit passcode, there are two things that you can try out to unlock your Honeywell thermostat: Insert 1234 as the passcode. Step 3: Put your battery back in and power on your thermostat. Follow the below steps to unlock your Honeywell T4 Pro series thermostat: On the keypad menu, press the “Unlock” button. how to unlock honeywell proseries thermostat without pin. Problems since they installed it, - Answered by a verified HVAC Technician. If you have a different Honeywell thermostat like the VisionPro Series TH8321WF or VisionPro with RedLINK the steps are: Locate the menu button. Enter this final password, and you will unlock your thermostat. Step 2: Hold down the lock button on the top of your thermostat for 10 seconds. Then input your password by adjusting the digits on the screen using the "+" or "-" keys. Follow the below mentioned steps in order to unlock your Honeywell thermostat 8000 Series. To unlock Honeywell T6 Pro without knowing the PIN, get it off the wall and remove its plate. Thermostat Honeywell Wi-Fi VisionPRO 8000 Installation Manual. If powered by the C wire, the screen stays lit for 45 seconds after you complete changes. 3 Press Select to cycle through System Setup numbers. First, let's identify your device. ” VisionPro TH8321WF and VisionPRO Series with RedLINK models For these particular thermostats, you need to: Press “MENU. I have a Honeywell Pro Series Thermostat, both Thermostat and furnace are 1 year old. How do I reset or cancel the pin on the Honeywell pro series thermostat?JA: Do you know the model of your Honeywell thermostat?How old is it?Customer: Model: TH6320WF2003 JA: How long has this been going on with your Honeywell thermostat?Customer: We have had this thermostat for 3 weeks. (17 pages) Thermostat Honeywell TH8320U Installation Instructions Manual. Locate and press the fan button on your Honeywell thermostat. To unlock the T6 Pro Series Smart Thermostat all you need is a PIN. Push excess wire back into the wall opening. " VisionPro TH8321WF and VisionPRO Series with RedLINK models For these particular thermostats, you need to: Press "MENU. 1 Optional Cover Plate installation 2. Need to unlock to reset for heat and change temperature … André R. On the back of the thermostat, you’ll find a four-digit date code. To unlock your RTH8500 Wi-Fi Series or TH8000 Series thermostats, follow these steps: Hold down System and Auto with two fingers on your display. To unlock the keypad, press the CENTER button and then enter the password “1234”. Start a Chat Now Answered in 30 minutes by: HVAC Technician: David Bowden. Once all four numbers have been entered, press Select again. Step 1: Check the 4 digit code of your Honeywell Thermostat. Press and hold the blank box in the center. You can try the following codes to unlock the thermostat. How to Program Honeywell T4 Pro thermostats SupplyHouse. How do you reset a Honeywell Pro Series thermostat? PERFORM A SCHEDULE RESET Press System. Congratulations! You’ve reset your device! Why is my Honeywell Pro Series thermostat not working?. If you're looking for a product that isn't a thermostat, try checking here. How to properly mount and install the T6 Pro thermostat Modal 1 How to set up your Honeywell Home T5 or T6 Pro Thermostat Modal 1 How to program schedules on the T6 Pro thermostat Modal 1 How to enter and navigate advanced programming on the T6 Pro thermostat Modal 1 Show all Additional Support. You have first to try to unlock the Honeywell Pro series thermostat with the default password "1234. Step 1: Check the 4 digit code of your Honeywell Thermostat. Howw do I unlock my Honeywell home proseries. 1234 or 0670, if those do not work try the date code on the thermostat. To reset one: Turn the thermostat on. The T9/T10, T5/T6, RTH9580WF, the RTH9585WF, and the TH9320WF (WiFi Color Touchscreen) all. Use the + and – symbols to enter the digits of your PIN. Adjust the digits on the screen using the "+" or "-" keys. Press the +/- buttons to change the digit. Change the right value for lock settings. Thermostat controls The screen will wake up by pressing any of the five buttons. 70K views 1 year ago Honeywell Pro Series Thermostat In this video I show you how to unlock the Honeywell Pro Series Thermostat. On the back of the thermostat, you’ll find a four-digit date code. Enter in the new passcode from the Menu option on the thermostat. If you have a Honeywell t4 series thermostat, there are a few different ways to unlock it. STEP 2 – Temporary hold will be displayed while flashing set point temperature. How do I unlock it? … read more airheatman. STEPS TO FOLLOW: STEP 1 – On the screen, you will see 2 buttons i. Learn all about the Honeywell BMS NA SuitePRO® TB6575 Digital Fan Coil Thermostat. Once you remove the thermostat please upload a clear photo then I can provide a code that should unlock the thermostat. Here is the sequence: Tap the lock option located in the center of the home screen. 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 … read more airheatman Heating & Air Conditioning 6 years college 17,594 satisfied customers Honeywell thermostat display blank. 4 Press + or - to change values or select from available options. Locate and press the fan button on your Honeywell thermostat. Then you will be able to reset your passcode. 70K views 1 year ago Honeywell Pro Series Thermostat In this video I show you how to unlock the Honeywell Pro Series Thermostat. The first thing you’ll need to do is locate the “unlock” button. To confirm your PIN, press the "select" button. Add 1234 to this four-digit code. To unlock a touchscreen Honeywell thermostat, it’s best to follow the instructions in your owner’s manual. We tried resetting it with changing the Ask an Expert Home Improvement Questions HVAC Questions How to unlock a Honeywell pro series thermostat that’s André R. FIND THE USER GUIDE FOR YOUR THERMOSTAT. Unlock the keypad for your T4 Pro Programmable Thermostat using these easy steps: Press the center button labeled Unlock. Unlocking Honeywell Pro series T4 Thermostat 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. 1M views 4 years ago 6 Honeywell T3, T3R & T4, T4R, Installing, Programming, Using, Wiring & Binding. To complete the unlocking of the thermostat, simply press "Done. If you have not set up a password, the default is 1234. Look for 4 digit code at the top right corner, and then add '1234' to this code. Select the lock mode by tapping the (+) or (-) buttons. The most common unlocking procedure involves going to the lock screen, pressing in the proper key code, and press “SELECT. Refer to your thermostat manual for the Screen Lock feature. Press and hold the blank lower center button, until the display changes. To unlock a touchscreen Honeywell thermostat, it’s best to follow the instructions in your owner’s manual. PERFORMING A WI-FI RESET Press the Menu icon Scroll down to “Wi-Fi” and select it Select “Change Network” Select the new Wi-Fi network and enter the password PERFORMING A SCHEDULE RESET Press the Menu Icon Scroll down to “Thermostat Information Record the “Date Code” Press the “back” arrow, then scroll down to “Installer Options”. Use the “select” button to confirm your PIN. If you need to unlock your thermostat, there are a few different ways that you can do so. With that number you can follow these steps to unlock your Honeywell thermostat: Search. If you have a different model the unlock code may be different so make sure you know that. Here are the steps on how to unlock the Honeywell Pro Series thermostat: Press the lock option. The 4000s are white, square programmable thermostats. My Honeywell T6 thermostat screen is locked, an I cannot… Satisfied Customers Expert Questions the Experts can answer 1. Mounting thermostat Push excess wire back into the wall opening. The first thing you’ll need to do is locate the “unlock” button. Align the UWP with the thermostat, and push gently until the thermostat snaps in place. This is usually the button on the bottom center of the keypad. STEPS TO FOLLOW: STEP 1 – Press “+” and “-“ keys in order to adjust the temperature. If you need to unlock your Honeywell Proseries thermostat without a pin, there are a few steps you can take. To enter the password, press or to change the first digit of the number. I show you step by. You can follow the steps mentioned below to unlock a locked Honeywell thermostat, For T4 Pro Series: Push the ‘Unlock’ button on the Honeywell Thermostat. Then you will be able to reset your passcode. 70K views 1 year ago Honeywell Pro Series Thermostat In this video I show you how to unlock the Honeywell Pro Series Thermostat. A – To get your Honeywell thermostat pro series off hold, follow the below mentioned steps. Continue holding the Program selection for one second. How do you reset a Honeywell Pro Series thermostat? PERFORM A SCHEDULE RESET Press System. Step 2: Hold down the lock button on the top of your. Enter your PIN digits using the + and – symbols. 5 Press Select to save changes and advance to the next System Setup number. How to reset Honeywell T6 thermostat 3. Enter the PIN/code and then tap on ‘Select’ to unlock it. With the innovative T6 Pro Programmable Thermostat, you can schedule your heating and cooling your way. how to unlock honeywell proseries thermostat without pin. To unlock Honeywell Pro series thermostat without pin, you would need to: Remove your thermostat’s faceplate and find a four-digit number on the top right. The most common unlocking procedure involves going to the lock. Step 1: Remove the battery from the back of the thermostat. I show you step by step how to unlock the. Change the digit on the right-hand side to 0 with the help of the up/down keys. From the thermostat’s home screen, press “Menu,” then hit the + or - buttons until the screen says “LOCK. If you have forgotten your 4-digit passcode, there are two things that you can try out to unlock your Honeywell thermostat: Insert 1234 as the passcode. Select the product you’re having trouble with from the options below. Press the (-) and (+) buttons to key in the four numbers until you get the correct number. To enter the password, press + or - to change the first digit of the number. For 8000 Series Honeywell Thermostat: Press and hold both the ‘System’ and ‘Auto’ choices on, after which hit the lower center key. Tc I've got a Honeywell Home proSeries thermostat Model #: I've got a Honeywell Home proSeries thermostat Model #: TH4110U2005. What is the default pin for Honeywell T6 thermostat 4. To enter the password, press + or - to change the first digit of the. To unlock Honeywell Pro series thermostat without pin, you would need to: Remove your thermostat’s faceplate and find a four-digit number on the top right corner of the device. To enter the password, press + or – change the first digit of the number. satisfied customers I am trying to unlock a Honeywell home proseries. 3 Setting Slider Tabs 3 Wiring terminal designations 4 NOTES 5 Thermostat mounting 6 System operation settings 7 Fan operation settings 8 Installer setup (ISU) 9 Advanced setup options (ISU) 10 Installer system test 11 Specifications. Check the name or model number of your product to ensure it's correctly written in the search bar above. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. If you have not modified your password yet, the default code is "1234". I have a Honeywell Pro Series Thermostat, both Thermostat and furnace are 1 year old. how to unlock honeywell proseries thermostat without pin. KNOW YOUR MODEL NUMBER? Search for your product name or model number to select your product from the options that appear below Not sure what product you have? Video Modal NOT THE DIY TYPE?. If that doesn’t work, you can also try removing the batteries and then replacing them after 30. Once you’ve found the unlock button, press it, and this should allow you to input a 4-digit pin. The most common unlocking procedure involves going to the lock screen, pressing in the proper key code, and press "SELECT. To confirm your decision, tap Select. While holding the Program selection, use a slender object such as a paper clip to press the Reset button. Here are the steps on how to unlock the Honeywell Pro Series thermostat: Press the lock option. To unlock the keypad, press the CENTER button and then enter the password “1234”. On the back of the thermostat, you'll find a four-digit date code. Change the number on the left to 0165, and the number on the right to 1. Instructions to Unlock To unlock, tap on the ‘lock’ icon. Tap "Done" on the screen to complete the unlock. Follow the below steps to unlock your Honeywell T4 Pro series thermostat: On the keypad menu, press the “Unlock” button. It was programmed to be at 62°. To complete the unlocking of the thermostat, simply press “Done. Settings include: [5] OFF: The thermostat is unlocked, and full access is allowed. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. The first way is to simply press and hold the “Lock” button for 3 seconds. Previously we posted a video on how to program the Honeywell T6 Pro thermostat; we got a lot of feedback on the video, and the main question that kept popping up was "How do I unlock the T6. If powered by battery only, the screen stays lit for 8 seconds. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. Using the (+) or (-) buttons, navigate to the ‘Lock’ option. First, try holding down the “Reset” button for three seconds. Choose your home Wi-Fi networks and select ‘Connect’. How do you reset a Honeywell Pro Series thermostat? PERFORM A SCHEDULE RESET Press System. 2 Press Select to enter System Setup (ISU) menu. Follow the instructions below to lock the keypad of your T4 Pro Programmable Thermostat: On the gadget’s touchscreen, tap’ Menu. If the ‘Connection Success’ message appears, the Wi-Fi reset is successful. To unlock Honeywell T6 Pro without knowing the. I am leasing a home with this thermostat. How to unlock a Honeywell pro series thermostat that’s André R. SELECT A MODEL: T6 Pro Programmable Thermostat up to 3 Heat/2. I show you step by step how to unlock the. It should remain closed without bulging. 5 Access Control Management MB-Secure License ASSA Aperio Door WIN-PAK Central Station Software Morphomanager Control Software WIN-PAK Integrated Security Software Pro-Watch Integration Morphokit ProAccess SPACE software Software Maintenance See All System Agreements & Upgrades. 70K views 1 year ago Honeywell Pro Series Thermostat In this video I show you how to unlock the Honeywell Pro Series Thermostat. If that didn't work, then look inside the thermostat and take note of the 4-digit date code; after that, add 1234 to the number. To unlock your RTH8500 Wi-Fi Series or TH8000 Series thermostats, follow these steps: Hold down System and Auto with two fingers on your display. Previously we posted a video on how to program the Honeywell T6 Pro thermostat; we got a lot of feedback on the video, and the main question that kept popping up was "How do. Most users will need to lock or unlock their thermostat to limit how many family members can control programming or adjust the temperature. How to properly mount and install the T6 Pro thermostat Modal 1 How to set up your Honeywell Home T5 or T6 Pro Thermostat Modal 1 How to program schedules on the T6 Pro thermostat Modal 1 How to enter and navigate advanced programming on the T6 Pro thermostat Modal 1 Show all Additional Support. To unlock a touchscreen Honeywell thermostat, it's best to follow the instructions in your owner's manual. This process can unlock T4 and T6 types of Pro Series thermostats similarly. PRO E-Series Perimeter Sensor Vertical Alignment Tool; ZT series Thermostat and Transmitter Immersion Tube; Remote Programming And Test Unit;. This should reset the device and allow you to enter a new four-digit pin. Step 2: You can note down that date code and add it with the default password (if the date code is 1550, add the default code 1234 to it, and your final password will be 2784). The new passcode would be 2654. Select the one you want. Select “1” (partial lock) or “2” (full lock) Locate and press “done. 4,766 Satisfied Customers Expert André R. Support Center 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. Adjust Temperature Use the up and down buttons on your Honeywell thermostat to adjust the temperature to warmer or cooler. If you have a different Honeywell thermostat like the VisionPro Series TH8321WF or VisionPro with RedLINK the steps are: Locate the menu button. The default passcode when the Honeywell T4 Pro is partially or f. Your thermostat is now unlocked. " If you entered the right passcode, your thermostat will be unlocked. Users will need to enter the passcode. honeywell help. " Find the Security Settings by using the arrow buttons on the device. is online now Related HVAC Questions The unit will not unlock, it is a pro series and is probably It started today. Go to the ‘Home screen’ and then go to the Honeywell Thermostat Wi-Fi page for inputting the IP address. Click to find product details, documentation, ordering info and more. To unlock your RTH8500 Wi-Fi Series or TH8000 Series thermostats, follow these steps: Hold down System and Auto with two. The default passcode when the Honeywell T4 Pro is partially or. If that didn’t work, then look inside the thermostat and take note of the 4-digit date code; after that, add 1234 to the number. Turn the power on at the breaker box or switch. Installed last summer or year before. Unlocking Honeywell Pro series T4 Thermostat 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. You can follow the steps mentioned below to unlock a locked Honeywell thermostat, For T4 Pro Series: Push the ‘Unlock’ button on the Honeywell Thermostat. If needed, gently pull to remove the thermostat from the UWP. Instructions to Unlock To unlock, tap on the ‘lock’ icon. " Enter the password with the arrow buttons. If you have forgotten your 4-digit passcode, there are two things that you can try out to unlock your Honeywell thermostat: Insert 1234 as the passcode. how to unlock honeywell proseries thermostat without pin. PERFORMING A WI-FI RESET Press the Menu icon Scroll down to “Wi-Fi” and select it Select “Change Network” Select the new Wi-Fi network and enter the password PERFORMING A SCHEDULE RESET Press the Menu Icon Scroll down to “Thermostat Information Record the “Date Code” Press the “back” arrow, then scroll down to “Installer Options”. From the thermostat’s home screen, press “Menu,” then hit the + or - buttons until the screen says “LOCK. Follow the below mentioned steps in order to unlock your Honeywell thermostat 8000 Series. Step 1: Remove the battery from the back of the thermostat. 1 Honeywell Pro Series Thermostat 2 Package Includes 2. For T6 Pro Series: Press the lock icon on the touchscreen. It seems stuck in the locked position. Keep them pressed together STEP 2 – Now keep holding the key present at the bottom center until the display changes. You can use that number to unlock your Honeywell thermostat by following these steps: Look for the lock icon in the menu and tap it. How to properly mount and install the T6 Pro thermostat Modal 1 How to set up your Honeywell Home T5 or T6 Pro Thermostat Modal 1 How to program schedules on the T6 Pro thermostat Modal 1 How to enter and navigate advanced programming on the T6 Pro thermostat Modal 1 Show all Additional Support. On some models, hold the 2nd and 4th blank buttons. I accidentally locked it and I don't know how to unlock it. Repeat the process until your last digit. If that didn’t work, find the date code on the subbase, add. I can't find what the problem w …. You'll then be able to input the default password, "1234". To unlock a touchscreen Honeywell thermostat, it’s best to follow the instructions in your owner’s manual. Touch screen programmable thermostats (21 pages) Thermostat. I have tried pushing the buttons and it goes to a 5 on the screen when I select home. To unlock Honeywell Pro series thermostat without pin, you would need to: Remove your thermostat’s faceplate and find a four-digit number on the top right corner of the device. Instructions to Unlock To unlock, tap on the 'lock' icon. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals. For example, change it to 1 for the first one. Hold it down continually for several seconds until a temperature settings menu appears on the display screen. From the thermostat's home screen, press "Menu," then hit the + or - buttons until the screen says "LOCK. To unlock Honeywell T6 Pro without knowing the PIN, get it off the wall and remove its plate. The unlock code for the Honeywell Pro Series T4 Thermostat is 1234. To unlock the keypad, press the CENTER button and then enter the password "1234". Honeywell Pro Series Thermostat Temporary & Permanent Hold Todd's Garage 24. You can use that number to unlock your Honeywell thermostat by following these steps: Look for the lock icon in the menu and tap it. Replace your battery and turn on your thermostat. To unlock the keypad, press the CENTER button and then enter the password “1234”. Enter the PIN/code and then tap on ‘Select’ to unlock it. The gadget will unlock once the right code is entered. Use the +/- buttons to choose each digit of the password. Instructions to Unlock To unlock, tap on the ‘lock’ icon. Select "1" (partial lock) or "2" (full lock) Locate and press "done. 2K subscribers Subscribe 85K views 1 year ago In this video I explain what Temporary and Permanent Hold are on a. 3 Setting Slider Tabs 3 Wiring terminal designations 4 NOTES 5 Thermostat mounting 6. Go to the ‘Home screen’ and then go to the Honeywell Thermostat Wi-Fi page for inputting the IP address. If you have a Honeywell t4 series thermostat, there are a few different ways to unlock it. Before calling Honeywell try the follow general codes; 0670 1234 Look on the back of the thermostat for a 4 digit number (that may be the code) and try that number IF THAT 4 DIGIT NUMBER DOES NOT WORK, PLEASE LET ME KNOW THAT NUMBER AND UPLOAD A CLEAR PHOTO OF ALL THE NUMBERS ON THE BACK OF THE THERMOSTAT AND I WILL GIVE YOU 1 MORE CODE TO TRY. I also need to know how t read more. Repeat this process to enter the second through fourth digits of the number. The heat is 'on', above the 'Auto Fan' is a triangle with an ! mark in the middle. ” Hit “Select,” then choose which lock setting you’d like your thermostat to be on. This should cause the display to show a locked padlock icon, indicating that the thermostat is now unlocked. Troubleshooting Honeywell Thermostats. The resultant 4-digit code will be your PIN. Honeywell 4000 Series Thermostats. If you have a Honeywell t4 series thermostat, there are a few different ways to unlock it. You can easily unlock your Honeywell thermostat, even if you forgot the code; first, try inserting 1234. Step 3: You can check with the default password of "1234" if it unlocks. Enter the PIN/code and then tap on 'Select' to unlock it. The thermostat will prompt you to enter a passcode/PIN. PERFORMING A WI-FI RESET Press the Menu icon Scroll down to “Wi-Fi” and select it Select “Change Network” Select the new Wi-Fi network and enter the password PERFORMING A SCHEDULE RESET Press the Menu Icon Scroll down to “Thermostat Information Record the “Date Code” Press the “back” arrow, then scroll down to “Installer. " Hit "Select," then choose which lock setting you'd like your thermostat to be on. PERFORMING A WI-FI RESET Press the Menu icon Scroll down to “Wi-Fi” and select it Select “Change Network” Select the new Wi-Fi network and enter the. 1 Press and hold Menu and + buttons for approximately 5 seconds to enter advanced menu. How to unlock a Honeywell ProSeries thermostat - Quora Answer (1 of 2): Amazing you found your way here to ask the question, yet failed to do a simple Google search (which is where the following came from) 2) Enter the passcode. With that number you can follow these steps to unlock your Honeywell thermostat: Search the menu for the lock symbol and then press it. This will unlock the keypad. For example, if the date code is 1420, then add 1420 + 1234. Change the right value for lock settings. Congratulations! You’ve reset your device! Why is my Honeywell Pro Series thermostat not working?. How to unlock a Honeywell ProSeries thermostat - Quora Answer (1 of 2): Amazing you found your way here to ask the question, yet failed to do a simple Google search (which is where the following came from) 2) Enter the passcode. The number obtained after addition will be the PIN of your thermostat. How to unlock Honeywell T6 thermostat 2. With that number you can follow these steps to unlock your Honeywell thermostat: Search the menu for the lock symbol and then press it. is online now Related HVAC Questions. 4,734 Satisfied Customers Expert André R. During this, press the Hold button to change to permanent hold. If everything was done correctly the device will lock. It looks like unlocking a Honeywell thermostat is not that difficult. This will unlock. The easy-to-install and easy-to-use thermostat provides flexible scheduling, so you can change it from day-to-day, just on weekends, or keep one program all week long. Press the Center or Menu button. If you need to unlock your thermostat, there are a few different ways that you can do so. How to troubleshoot Honeywell T6 thermostat 5. Mounting thermostat Push excess wire back into the wall opening. If you have a different Honeywell thermostat like the VisionPro Series TH8321WF or VisionPro with RedLINK the steps are: Locate the menu button. How to unlock a Honeywell pro series thermostat that’s locked. Reset Thermostat Schedule To reset the schedule of your Honeywell 6000 Wi-Fi thermostat, follow these steps:. 1 Honeywell Pro Series Thermostat 2 Package Includes 2. Depending on how your thermostat was installed, the screen light may always be on. 1 UWP Mounting System Installation 2 For the Rectangular Cover Plate 2 Power Options 3 Setting Slider Tabs 3 Wiring Terminal Designations 3 Wiring Conventional Systems: Forced Air and Hydronics 4 Wiring Heat Pump Systems 5 Thermostat Mounting 6 Set the Time and Date 6 System Operation Settings 7 System Modes 7 Fan Operation Settings 7. From the locked home screen, press the center button. Change the digits on the left side to '0670', using the up and down keys in the middle of the screen. Keep in mind that the screen lock feature only blocks changes on the thermostat screen itself. ” If you entered the right passcode, your thermostat will be unlocked. Look for 4 digit code at the top right corner, and then add ‘1234’ to this code. " Step1: Turn off the thermostat and remove the battery from it. I have a Honeywell Pro Series Thermostat, both Thermostat and furnace are 1 year old. Here are the steps on how to unlock the Honeywell Pro Series thermostat: Press the lock option. 1 UWP Mounting System Installation 2 For the Rectangular Cover Plate 2 Power Options 3 Setting Slider Tabs 3 Wiring Terminal Designations 3 Wiring Conventional Systems: Forced Air and Hydronics 4 Wiring Heat Pump Systems 5 Thermostat Mounting 6 Set the Time and Date 6 System Operation Settings 7 System Modes 7 Fan Operation Settings 7. Step 2: Then wait for a few 5-10 seconds. You can move on to the next digit by pressing ‘Select. The gadget will unlock once the right code is entered. This should cause the display to show a locked padlock icon, indicating that the thermostat is now unlocked. Tap and hold the blank key in the bottom center of the keypad till the display changes.