Honeywell t6 lock code - To lock and unlock a Honeywell thermostat, the most popular method is to go to the lock screen and enter the correct key code, followed by “SELECT.” Honeywell thermostats are divided into three categories: T4, T6, and 8000. Each type of thermostat has its own set of instructions to lock and unlock. First, figure out which thermostat you ...

 
To set the PIN* protection on the T6 range of Smart Thermostats, please follow the steps below: Press the right arrow to go to the LOCK menu. In the LOCK menu you can choose among the following options: When choosing PARTIAL or FULL protection the PIN number will appear on the screen. It is always a sum of 1234 number and the date code of the .... Icd 10 pcs code for laparoscopic ventral hernia repair with parietex mesh

Lyric™ T6 Pro Wi-Fi Thermostat programmable *TH6320WF2003 illustré. Les autres modèles peuvent varier. Visitez yourhome.honeywell.com pour obtenir le guide de l’utilisateur complet. Pour obtenir de l’aide, veuillez contacter : SITE WEB lyric.honeywell.com COURRIEL [email protected] TÉLÉPHONE 1-800-633-3991manual Honeywell TH6210U2001/U. Package Includes: • T6 Pro Thermostat. • UWP™ Mounting System. • Honeywell Standard Installation. Adapter (J-box adapter) • Honeywell Decorative Cover Plate –. Small; size 4 49/64 in x 4 49/64 in x. 11/32 in (121 mm x …Read before installing. Compatibility. • Compatible with most heating, cooling, and heat pump systems. • Required: 24 VAC power ("C" wire) • Input: 24 V ~ @ 60 Hz, 1 A. • Does not work with electric baseboard heat (120V-240V) • Does not work with millivolt systems. • Android or iOS smartphone or tablet.The T6 Pro thermostat has the ability to lock the screen. The options are either "PART" for a partial lock, "ON" for full lock, or "OFF" for no lock. From the Home screen, press the Menu button. Press the > button until the word LOCK appears on the screen. Press the Select button. Press the < or > button to scroll between "OFF", "ON", …If you have recently purchased a used Dodge vehicle or had to replace your car battery, you may find yourself in a situation where your radio is locked and requires an unlock code....2/22/22. Yes, the Prestige thermostat allows the owner to lock the screen with a password. To set a password on the thermostat: Press the menu tab. Scroll down to and select Security Settings. Press Create Password and note the four digit code provided. Write the password in the space provided in the owner's manual or another safe location.Find out about the Honeywell Wi-Fi Programmable Touchscreen Thermostat that lets you control the temperature in your home through your smartphone or computer. Expert Advice On Impr...Honeywell International Inc. 5 Douglas Drive orth Golden Valley, M 5522.S. Registered Trademark. 2016 Honeywell International Inc. 33-00152EFSfi03 M.S. Rev. 8-16 Printed in .S.A. 3312ES3 Apple® HomeKit™ Setup Code. The Lyric T6 Pro Wi-Fi supports Apple HomeKit. When prompted by the Lyric app, scan the code on the last page (back cover) of ...4 To unlock the keypad, press the CENTER button and then enter the password “1234”. To enter the password, press or to change the first digit of the number. Then press Select. Repeat this process to enter the second through fourth digits of the number. Once all four numbers have been entered, press Select again.United States and Canada: 1 (877) 841-2840. Hours: 6 AM Monday through 6 PM Friday (EST) International: 001 (480) 353-3020. Hours: 10 AM Monday through 10 PM Friday (GMT) Do you need customer support with a product or service you already have? We are here to help you solve your problem and direct you to the appropriate contact.This video shows how to set up a lock screen on your Honeywell T6 Lyric Pro Wi-Fi Thermostat so that your system cannot be accessed except by people who have...Speak directly with an agent for help with our products. Modal. The thermostat has 3 settings for the screen lock: Unlocked, Partial Lock, and Full Lock -Unlocked: All settings are adjustable...20 Jul 2023 ... LOCK Honeywell Home T5 | LOCKING Device from Users ... T6 pro smart thermostat honeywell wrong pin. ... Honeywell T5 Forgot PIN Code Fix. IrixGuy's ...T6, T6R, Lyric, lock, screen, code, thermostat locked, PIN, block, unlock, reset, display. Answer / Solution. At the moment the PIN of the T6/T6R Smart Thermostat cannot be changed. The PIN is 1234 + Date Code. For example, if the date code of your T6/T6R thermostat is 1640, the PIN for the T6/T6R will be: 1234 + 1640 = 2874.Enter your current Programming Code and press the Unlock button. Press 5 and then press the Unlock button. Enter the Time-Delay (20 to 900 seconds). Press the Unlock button to complete the process. Auto-lock is now active, meaning your Lock will lock automatically after the specified time—when you leave it unlocked.View and Download Honeywell Home T6 quick start manual online. Smart thermostat Wired and Wireless. T6 thermostat pdf manual download. Also for: T6r, Y6h810wf1005, …Mar 12, 2022 · To do this on the T4 Pro Series Honeywell Thermostat, press the “Unlock” button. On the T6 Pro Series, tap the lock symbol on the screen. On the 8000 series, Hold down both the ‘System’ and ‘Auto’ options and then hold the blank lower center button. I’ve also talked about how to lock all the different Honeywell Thermostats. The Master Lock key code, or key number, is available as an imprint on the side of the key. This number is necessary if needing new keys for a Master Lock padlock. If a key number ...United States and Canada: 1 (877) 841-2840. Hours: 6 AM Monday through 6 PM Friday (EST) International: 001 (480) 353-3020. Hours: 10 AM Monday through 10 PM Friday (GMT) Do you need customer support with a product or service you already have? We are here to help you solve your problem and direct you to the appropriate contact.Lameck. For a locked screen, follow the following steps to be able to unlock. On the thermostat, press Menu. Press + or - to go to LOCK and press Select. Press + or - to go to OFF, PART, or ON, and then press Select. Press the CENTER button and then enter the password “1234” to unlock the keypad. To enter the password, press + or - to ...The code to activate Apple HomeKit would be on a sticker either in the box with the unit or on the unit itself. If not, the code will be displayed on the thermostat during the configuration with Apple HomeKit. ... What should I do if I get a "System is offline" message on the T6/T6R Smart Thermostat? ... The Honeywell Home trademark is used ...16 Feb 2023 ... PART 1 of 2 - Covering all T4 T5 T6 ... Honeywell Thermostat Instructions, Wire Terminals, Functions, Color Code! ... Honeywell T6. Easy solution. RCHT8612WF2015/U, SMHOM8610KIT, RCHT8612WF2015/W, RTH8800WF2022/U, RCHT8610WF2006/U. Download Manual Download Installation Guide. Download Service Datasheet. T5 SMART THERMOSTAT Product Page. Simply press the center button on the front of the thermostat, under where it says “unlock.”. Next, enter the four-digit passcode. The default password on this model is “1234”. From here, use the plus/minus buttons to change the number up and down. When you get to the correct number, hit the “select” button. Simply press the center button on the front of the thermostat, under where it says “unlock.”. Next, enter the four-digit passcode. The default password on this model is “1234”. From here, use the plus/minus buttons to change the number up and down. When you get to the correct number, hit the “select” button. The T6/T6R smart thermostats are designed to provide. automatic time and temperature control of heating. systems in homes and apartments. It's compatible with 24-230V on/off and OpenTherm®. appliances such as gas boilers, combi-boilers and heat. pump. Also works with zone valve applications but not with. electric heating (240V). The T6 is for ...When SCREEN LOCK is active, a “lock” icon will be displayed on the thermostat display. Press Menu on the thermostat. Press + or - to go to LOCK. Press …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.Lock Picking: Cylinder Locks - Cylinder locks make up most deadbolts. Find out how cylinder locks work, how to pick a cylinder lock and about the pin-and-tumbler design. Advertisem...Unlocking the screen Following Schedule Touch the lock symbol on the thermostat Mode home screen. Heat Auto When prompted to enter a PIN number, Away Home Sleep touch to select the first number of the PIN code. Touch Select to confirm, and MCR37051 M36396 repeat for the remaining numbers.Dec 19, 2023 · Use a screwdriver to tighten the terminal screws and ensure a secure connection. Now, snap the T6 Pro Smart Thermostat onto the mounting plate. Ensure that it is properly aligned and securely attached. Once the thermostat is installed, turn on the power to your heating and cooling system at the breaker or fuse box. Take this pin number above and add the default Honeywell code "1234" (or 1235) to this code. (Ex: 2218 + 1234 = New pin). The new PIN in this case is 3452. Step 4: Enter your …How to lock Honeywell T6 thermostat? To lock the T6 model, you need 4 steps to lock the screen and prevent all or partial access to the thermostat. Tap the …Lyric™ T6 Pro Wi-Fi Thermostat programmable *TH6320WF2003 illustré. Les autres modèles peuvent varier. Visitez yourhome.honeywell.com pour obtenir le guide de l’utilisateur complet. Pour obtenir de l’aide, veuillez contacter : SITE WEB lyric.honeywell.com COURRIEL [email protected] TÉLÉPHONE 1-800-633-39915. This will reset the Control Gas Valve and cause it to display a normal flash code for the LED on the left bottom of the Control Gas Valve. Note: Slow blinking is the normal flash code. Honeywell WV4464b1037 Troubleshooting. wv4464b1037 honeywell. wv4464b1037 replacement. wv4464b1037 honeywell manual. …To do this on the T4 Pro Series Honeywell Thermostat, press the “Unlock” button. On the T6 Pro Series, tap the lock symbol on the screen. On the 8000 series, Hold down both the ‘System’ and ‘Auto’ options and then hold the blank lower center button. I’ve also talked about how to lock all the different Honeywell Thermostats.Position the Cover Plate on wall. Level and mark hole positions. See Figure 1. Drill holes at marked positions, and then lightly tap supplied wall anchors into the wall using a hammer. If your box contains red anchors, drill 7/32” (5.6 mm) holes. If your box contains yellow anchors, drill 3/16” (4.8 mm) holes.From the bookbag to the purse to the briefcase to the car, a standard cell phone travels far and wide in a given day. And with the amount of private information, phone numbers, and...Keep in mind that some devices may only use a MAC ID. For most thermostats, the CRC and MAC ID are located on the back of the detachable face plate. For RedLINK products, they are located on the RedLINK Internet Gateway. DATE CODE – This describes the date the thermostat was built. For most thermostats, the Date Code is a …Lyric™T6R. Wireless Programmable Thermostat. 2. • Connects to the Internet so you can control your heating system from anywhere with the Lyric App. • Remotely view and change your heating system settings. • Diverse programming options that fit any lifestyle: -Time Scheduling – program schedule supports daily or 5-2 with 6 time periods ...Press the center button and hold to unlock the keypad. This will allow you to enter the key code to turn off your lock. Enter your keypad code. With most Honeywell models, the default keypad code is “1234.”. You can punch this in by scrolling through the available numbers using the +/- buttons.How do I unlock the screen? Touch the screen. You will be asked for a passcode to unlock and enter the screen. You will need to add 1234 to your date code. Example: 1234+1632 = 2866 pass code.Touch the screen. You will be asked for a passcode to unlock and enter the screen. You will need to add 1234 to your date code. Example: 1234+1632 = 2866 pass code.If you have recently purchased a used Dodge vehicle or had to replace your car battery, you may find yourself in a situation where your radio is locked and requires an unlock code....May 12, 2023 · 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. Press or to go to LOCK. Press Select. Press or to go to OFF, PART, or ON, and then press Select. ... If the code is incorrect, the screen will flash the lines "--". ... Download Honeywell T6 Pro Hydronic, TH6100AF2004 - Programmable Thermostat Manual.HVAC Technician: David Bowden. Since the date code and variation on the date code did not unlock the thermostat, the only other option to try is a factory reset and using the installers menu (see item 435 for procedures). If these steps do not unlock the thermostat, you might consider calling Honeywell direct or replace the thermostat.May 12, 2023 · The screen lock pin is not adjustable on any Honeywell thermostat. To obtain the pin, remove the thermostat faceplate by pulling it gently away from the wall plate. On the label on the back of the thermostat face-plate, locate the DATE CODE. There are a few different ways a Kindle Fire can lock up and need to be fixed. Your app could stop working, the device itself can freeze, and it is even possible for the whole tabl...Codes that have the wireless symbol indicate that the accessory has an NFC radio on-board, which allows it to pass pairing information directly to your phone. Finally, the latest HomeKit code uses a more compact label, which only includes the house icon, and the eight-digit code, which unfortunately cannot be scanned by the Home app.Honeywell Lyric T6 Pro Wi-Fi Installation Manual View and Read online. Installer setup – using the thermostat. ... Screen Lock The thermostat touch screen can be set to lock fully or partially. ... This code is displayed for a short time, when you are about to lock the thermostat screen. Please note the code insafe place for future reference ...Contents hide 1 Honeywell T6 Pro Wi-Fi Programmable Thermostat 2 UWP Mounting System Installation 3 Terminal designations 3.1 Setting Slider Tabs 3.2 Ventilation systems 4 Using U Slider Tab 5 Installer setup – using the thermostat 6 Key features 6.1 Installer setup options (ISU) – advanced menu 6.2 Performing a system test 7 …The Honeywell Home T6 Pro TH6210U is part of the Thermostats test program at Consumer Reports. In our lab tests, Programmable Thermostats models like the T6 Pro TH6210U are rated on multiple ...A carrier lock, which is featured on most cellphones, is a software code placed on a phone that prevents its use on another network. To unlock the technology, another code must be ...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. 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. For example, if the date code is 0919, then insert 2153 as the ...Setup without the Resideo App: Use the < and > buttons to navigate the menu. Touch EDIT to modify each setting. When Finish Setup is displayed, Touch SELECT to save the settings. After Saving the configuration settings, you will be prompted to connect to WiFi. If you Opt out of connecting to WiFi, you will be prompted to enter the time and date.T6 lyric is locked and forgot the code. Adding 1234 isn't working. 1234 itself does not work either. Honeywell t-6 - Answered by a verified HVAC TechnicianJun 19, 2022 · After that, lock your thermostat completely or partially. When prompted, pick your desired locking mode, and when requested to confirm, choose ‘Yes.’ Unlocking the Honeywell T6 thermostat. A 4-digit PIN code is a need to unlock the T6 model. If you don’t know your PIN number, you’ll have to take a few more steps to get your thermostat ... May 7, 2020 · Many people want to know how to lock their Honeywell thermostat so the people in their home can stop adjusting the temperature on their own. Allow us to intr... Speak directly with an agent for help with our products. Modal. The thermostat has 3 settings for the screen lock: Unlocked, Partial Lock, and Full Lock -Unlocked: All settings are adjustable...Honeywell Lyric T6 is a smart thermostat that connects to your home Wi-Fi network and can be controlled remotely using the Honeywell Lyric app on your smartphone. With diverse programming options, you can set daily or 5-2 schedules with 6 time periods for each day. It also supports geofencing, which uses your smartphone's location to manage ...Have you ever experienced getting into your car, turning on the ignition, and realizing that your Honda radio is locked? It can be quite frustrating, especially if you rely on your...Page 7: Connecting To A Wi-Fi® Network. Create Account Honeywell Home Login Once connected to your Wi-Fi network and Honeywell Home App, the Thermostat will briefly display SUCCESs and the connected symbol will be displayed in the upper right corner. The Thermostat will also set the time and date automatically once connected to the internet.The Honeywell Home ProSeries T6 tends to lock up sometimes, or clients can accidentally lock it not knowing. This video will guide you ever step of the way h...9 Oct 2018 ... You will need: - A smart phone or tablet - The Honeywell Home app - A 2.4 GHz Wi-Fi network Press and hold the center temperature on the ...Method 1: Reset the Thermostat. The most common way to unlock a Honeywell T6 thermostat without a code is to reset it. This can easily be done by pressing and holding the reset button on the back of the device for 10 seconds until you hear a beep. This should restore all settings, including any lost or forgotten codes, and allow you to ...Temperature control modes. Your T6 Pro Hydronic Programmable Thermostat can be set to operate in one of 3 different control modes. These settings determine which temperature is measured, controlled and displayed on the thermostat home screen. Each thermostat in your home can be set to a different control mode.May 12, 2023 · 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. To unlock a honeywell pro series thermostat without a pin, remove it from wall and take out the plate. On the thermostat model information, locate the four digit code then add the default pin ‘1234’ to the code. The resultant number is your new pin. Here is an example in the image above. If the for four digit code is 1921 then your new pin ...Other Honeywell thermostat that have screen lock out feature are. If you want keypad lockout try these models: T9/T10 Smart thermostat with wireless sensors . T10 is duel fuel compatible with humidity control. T5/T6 Smart thermostat without wireless sensors. Models including TH6320WF2003, TH6220WF2006, TH6320U2008, TH6220U2000, TH6210U2001A carrier lock, which is featured on most cellphones, is a software code placed on a phone that prevents its use on another network. To unlock the technology, another code must be ...manual Honeywell TH6210U2001/U. Package Includes: • T6 Pro Thermostat. • UWP™ Mounting System. • Honeywell Standard Installation. Adapter (J-box adapter) • Honeywell Decorative Cover Plate –. Small; size 4 49/64 in x 4 49/64 in x. 11/32 in (121 mm x 121 mm x 9 mm)Contents hide 1 Honeywell T6 Pro Wi-Fi Programmable Thermostat 2 UWP Mounting System Installation 3 Terminal designations 3.1 Setting Slider Tabs 3.2 Ventilation systems 4 Using U Slider Tab 5 Installer setup – using the thermostat 6 Key features 6.1 Installer setup options (ISU) – advanced menu 6.2 Performing a system test 7 Troubleshooting 7.1 […]2 Press or to go to LOCK. Press Select. 3 Press or to go to OFF, PART, or ON, and then press Select. OFF: Unlocked, and full access allowed. PART: Partial lockout, allowing only the temperature to be changed. ON: No access allowed. 4 To unlock the keypad, press the CENTER button and then enter the password “1234”.Contents hide 1 Honeywell T6 Pro Wi-Fi Programmable Thermostat 2 UWP Mounting System Installation 3 Terminal designations 3.1 Setting Slider Tabs 3.2 Ventilation systems 4 Using U Slider Tab 5 Installer setup – using the thermostat 6 Key features 6.1 Installer setup options (ISU) – advanced menu 6.2 Performing a system test 7 Troubleshooting 7.1 […]Locking the interface Your T6/T6R Smart Thermostat has a lock function, which can restrict access to the Thermostat interface in two levels: · PARTIAL: Allows changing the setpoint temperature only · FULL: Restricts all access to the Thermostat interface When the function is activated a PIN is given to unlock the thermostat - take note of the ...If you have recently purchased a used Dodge vehicle or had to replace your car battery, you may find yourself in a situation where your radio is locked and requires an unlock code....Yes, the Honeywell Home thermostat has a lock function, which can restrict access to the thermostat in two levels: Partial: allows changing the setpoint temperature only. Full: restricts all access to the thermostat. When the function is activated a PIN code is given to unlock the screen of the thermostat. Please take note of the PIN code.A rate lock-in agreement with a mortgage lender commits the lender to honoring the rate at closing, as long as it happens before the lock expires. However, a borrower generally can...Yes, the Honeywell Home thermostat has a lock function, which can restrict access to the thermostat in two levels: Partial: allows changing the setpoint temperature only. Full: restricts all access to the thermostat. When the function is activated a PIN code is given to unlock the screen of the thermostat. Please take note of the PIN code.How to unlock Honeywell T6 pro thermostat Keypad Lock out. Press Menu on the thermostat. Press + or – to Lock; Press Select. Press + or – to go OFF, PART, or ON, …Yes, the Honeywell Home thermostat has a lock function, which can restrict access to the thermostat in two levels: Partial: allows changing the setpoint temperature only. Full: restricts all access to the thermostat. When the function is activated a PIN code is given to unlock the screen of the thermostat. Please take note of the PIN code.

To unlock Honeywell T6 Pro without knowing the PIN, get it off the wall and remove its plate. Look for 4 digit code at the top right corner, and then add ‘1234’ to this code. The resultant 4-digit code will be your PIN.. Movies palm desert regal

honeywell t6 lock code

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. 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. For example, if the date code is 0919, then insert 2153 as the ...Page 8: Mounting Thermostat. If needed, gently pull to remove the thermostat from the UWP. Turn the power on at the breaker box or switch. Initial installer setup • After the T6 Pro Z-Wave thermostat has powered up, touch START SETUP on the thermostat. • Touch to toggle between Installer Set Up (ISU) options.6 days ago · T6-T4 Smart Setup Codes List. There are too many codes to list here so instead, jump to page 11 in the PDF below. (Note: Click the rotate button, as the ISU codes page is rotated 90 degrees). This is for the TH6220WF2006 & TH6320WF2003 in particular. For more installation manuals with ISU codes, check out my list here. Mar 12, 2022 · To do this on the T4 Pro Series Honeywell Thermostat, press the “Unlock” button. On the T6 Pro Series, tap the lock symbol on the screen. On the 8000 series, Hold down both the ‘System’ and ‘Auto’ options and then hold the blank lower center button. I’ve also talked about how to lock all the different Honeywell Thermostats. Unlocking the screen Following Schedule Touch the lock symbol on the thermostat Mode home screen. Heat Auto When prompted to enter a PIN number, Away Home Sleep touch to select the first number of the PIN code. Touch Select to confirm, and MCR37051 M36396 repeat for the remaining numbers.Jan 21, 2023 · Once you get the Lock option on your screen, Select it by pressing the Select button on your thermostat. Lock Honeywell T6 Pro Series Thermostat. If you own a T6 Pro series thermostat, you can easily lock it but with a different method. Here is how: Tap on the Menu option and navigate through the menu. Select the Screen Lock options. 1. Open necessary ports for Honeywell Lyric T6 communication. Consult the Honeywell Lyric T6 thermostat’s user manual or the Honeywell website for information on the specific ports that need to be opened for communication. Configure your router’s firewall settings to allow traffic on these ports.6 Oct 2018 ... ... LOCK & ULOCK HONEYWELL THERMOSTAT !!!!??? ... Honeywell T6. Easy solution. HVAC OTJ•66K ... HONEYWELL VISION PRO 8000 SERIES THERMOSTAT PASSWORD ...If you use Apple's Notes app, you can lock sensitive photos, videos, documents, and more. Searching for data or photo lockers will lead you to many apps. Some of them are genuinely...Find out about the Honeywell Wi-Fi Programmable Touchscreen Thermostat that lets you control the temperature in your home through your smartphone or computer. Expert Advice On Impr...4 To unlock the keypad, press the CENTER button and then enter the password “1234”. To enter the password, press or to change the first digit of the number. Then press Select. Repeat this process to enter the second through fourth digits of the number. Once all four numbers have been entered, press Select again.To unlock your Honeywell T4 Pro series thermostat, press the center button. Now enter the PIN code to unlock it. The default PIN is ‘ 1234 ’. Use the “-” and “+” keys to select the numbers. When get the number 1, press the select button to select it. Then get 2, 3, and 4 to unlock. Remember :- The default unlock passcode for each ...Yes, the Honeywell Home thermostat has a lock function, which can restrict access to the thermostat in two levels: Partial: allows changing the setpoint temperature only. Full: restricts all access to the thermostat. When the function is activated a PIN code is given to unlock the screen of the thermostat. Please take note of the PIN code.5 Oct 2021 ... Comments10 ; The Honeywell Lyric T6 Wi-Fi Smart Thermostat | DIY Home Improvement. Albany County Fasteners · 109K views ; HONEYWELL Home T6 Pro | ...My Honeywell T6 thermostat screen is locked, an I cannot unlock it. I have tried entering 3 different pins: “1234” “2109” (which is the date code on the back) and “3343” (which is the date code 2109 + 1234) None of those worked. Contractor's Assistant: ...Yes, the Honeywell Home thermostat has a lock function, which can restrict access to the thermostat in two levels: Partial: allows changing the setpoint temperature only. Full: restricts all access to the thermostat. When the function is activated a PIN code is given to unlock the screen of the thermostat. Please take note of the PIN code..

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