The Honeywell Pro 4000 is a 5-2 day programmable thermostat designed for energy efficiency and ease of use. It offers advanced features like Adaptive Intelligent Recovery and manual overrides, making it ideal for homeowners seeking precise temperature control and energy savings. This guide provides a comprehensive overview of its features, setup, and operation.
1.1 Overview of the Honeywell Pro 4000 Series
The Honeywell Pro 4000 Series is a line of programmable thermostats designed for energy efficiency and ease of use. These thermostats are ideal for homeowners seeking precise temperature control and energy savings. The series includes models like the TH4110D1007 and TH4210D1005, offering 1H/1C and 2H/1C configurations. They feature a backlit display and compatibility with various heating and cooling systems, including heat pumps. The Pro 4000 Series is known for its 5-2 day programming, allowing users to set different schedules for weekdays and weekends. With features like Adaptive Intelligent Recovery and manual overrides, these thermostats provide flexibility and convenience. The series is part of Honeywell’s commitment to innovative temperature control solutions, making it a popular choice for modern homes.
1.2 Key Features and Benefits
The Honeywell Pro 4000 Series offers a range of key features that enhance comfort and energy efficiency. One standout feature is its 5-2 day programming, allowing users to set different temperature schedules for weekdays and weekends. The Adaptive Intelligent Recovery (AIR) technology ensures the programmed temperature is reached by the set time, optimizing performance. The thermostat also includes manual override options, enabling temporary or permanent adjustments without altering the programmed schedule. Additionally, it features a backlit display for easy readability and compatibility with various heating and cooling systems, including heat pumps. These features not only provide convenience but also help homeowners save up to 33% on annual heating and cooling costs, making the Honeywell Pro 4000 a practical and efficient choice for modern homes.
Thermostat Controls and Layout
The Honeywell Pro 4000 features a user-friendly interface with a backlit display and straightforward buttons for temperature adjustment and navigation, ensuring intuitive control of heating and cooling settings.
2.1 Understanding the Thermostat Display
The Honeywell Pro 4000 thermostat features a backlit display that clearly shows the current temperature, set temperature, time, and day. The display is designed for easy readability, with a bright backlight that illuminates the screen in low-light conditions. Icons and symbols on the display indicate the current mode (heating or cooling), fan operation, and system status. The display also shows programmed schedules and any active overrides. Understanding the display is essential for navigating the thermostat’s functions effectively. By familiarizing yourself with the icons and layout, you can quickly adjust settings, monitor energy usage, and ensure your home remains comfortable. The display’s intuitive design makes it user-friendly, even for those new to programmable thermostats.
2.2 Navigating the Control Buttons
The Honeywell Pro 4000 thermostat features a set of intuitive control buttons that allow you to adjust settings with ease. The buttons are ergonomically designed for simple navigation. The SET button is used to confirm selections, while the RUN button activates the programmed schedule. The ▲ and ▼ arrows adjust the temperature, and the MENU button accesses advanced settings. Pressing the PRGM button cycles through programmed periods, and the HOLD button overrides the current schedule. The FAN button toggles fan operation, and the SYSTEM button switches between heating and cooling modes. Each button’s function is clearly labeled, making it easy to navigate and customize your comfort settings. The buttons respond promptly to presses, ensuring smooth operation and precise control over your home’s temperature.

Setting Up the Thermostat
Setting up the Honeywell Pro 4000 involves installing the thermostat, setting the time and day, and configuring basic settings for optimal performance and energy efficiency.
3.1 Initial Installation Requirements
Before installing the Honeywell Pro 4000, ensure compatibility with your HVAC system. It supports 1H/1C and 2H/1C configurations; A common wire (C-wire) is required for proper operation. Mount the thermostat on a flat wall, avoiding direct sunlight and drafts. Turn off power to your HVAC system at the circuit breaker. Remove the old thermostat and label the wires for easy identification. Install the new thermostat base, securing it with screws. Connect the wires to the appropriate terminals, ensuring no loose connections. Reattach the faceplate and restore power. If unsure, consult a professional for assistance. Proper installation ensures reliable performance and energy efficiency.
3.2 Setting the Time and Day
To ensure accurate operation, set the time and day on your Honeywell Pro 4000 thermostat. Press the SET button to enter the time setup mode. Use the arrow buttons to adjust the hour, minute, and day. Once set, press RUN to save and exit. The thermostat comes pre-programmed with default settings, so you only need to set the time and day initially. Accurate time settings are crucial for proper schedule execution and energy-saving features. If the display is blank or flashing, check the battery or wiring connections. Proper time setup ensures your thermostat operates efficiently and aligns with your daily routine for optimal comfort and energy savings.
3.3 Configuring Basic Settings
After setting the time and day, configure the basic settings on your Honeywell Pro 4000 thermostat. Use the arrow buttons to adjust temperature preferences, system type (heating or cooling), and swing settings. Set your preferred temperature range to ensure comfort. Select the correct system type to match your HVAC setup. The swing setting adjusts how frequently the system cycles on and off. Press SET to enter the menu and RUN to save changes. These settings ensure your thermostat operates efficiently and aligns with your home’s specific needs. Proper configuration is essential for optimal performance and energy savings. Refer to the user manual for detailed instructions on each setting to customize your thermostat effectively.

Programming the Thermostat
Program your Honeywell Pro 4000 to optimize temperature settings for weekdays and weekends. Use the 5-2 day schedule to customize comfort and energy savings effortlessly.
4.1 Creating a Weekly Schedule
To create a weekly schedule on your Honeywell Pro 4000, press the SET button to access the menu. Select the schedule type (5-2 day) and choose the desired day(s). Set the wake, leave, return, and sleep times for weekdays and weekends separately. Press SET to input temperatures for each period. Use the up/down arrows to adjust values. Repeat for all time periods. Once done, press RUN to save and exit. This feature allows you to customize comfort and energy savings based on your routine. Ensure to review and adjust the schedule as needed for optimal performance.
4.2 Setting Temperature Preferences
To set temperature preferences on the Honeywell Pro 4000, press the SET button and navigate to the temperature settings menu. Use the up/down arrows to adjust the desired temperature for heating and cooling modes. Ensure the system is in the correct mode (HEAT or COOL) before setting preferences. For energy efficiency, set the thermostat to 68°F for heating and 78°F for cooling when occupied. Adjust these settings based on your comfort and schedule. Press RUN to save your changes. Regularly updating temperature preferences can help optimize energy usage and maintain a consistent indoor climate. Always refer to the user manual for detailed instructions on customizing these settings.
4.3 Understanding 5-2 Day Programming
The Honeywell Pro 4000 offers 5-2 day programming, allowing you to set different temperature schedules for weekdays (Monday to Friday) and weekends (Saturday and Sunday). This feature is ideal for households with varying routines. To program, press the SET button and use the up/down arrows to adjust the time and temperature for each period. For weekdays, set your preferred wake, leave, return, and sleep times. For weekends, create a separate schedule tailored to your needs. Press SET to cycle through each period and RUN to save. This programming helps optimize energy usage and maintain comfort. Refer to the user manual for step-by-step guidance on customizing your 5-2 day schedule effectively. Proper programming can lead to significant energy savings and enhanced comfort.

Advanced Features of the Honeywell Pro 4000
The Honeywell Pro 4000 includes advanced features like Adaptive Intelligent Recovery (AIR), which ensures programmed temperatures are reached on time. It also offers manual override options, allowing temporary or permanent adjustments to your schedule for flexibility and convenience. These features enhance energy efficiency and user control, making the thermostat versatile for various household needs.
5.1 Adaptive Intelligent Recovery (AIR)
The Honeywell Pro 4000 features Adaptive Intelligent Recovery (AIR), a smart technology that ensures your programmed temperature is reached precisely when scheduled. AIR calculates the time needed to heat or cool your home, starting early if necessary, to meet your setpoint by the programmed time. This feature works seamlessly with your thermostat’s programming, eliminating the need for manual adjustments. By learning your system’s performance and your home’s thermal characteristics, AIR optimizes energy use while maintaining comfort. It is fully automatic and integrates with temporary or permanent overrides, offering both convenience and efficiency. This advanced feature helps reduce energy waste and ensures consistent temperatures, making it a standout capability of the Honeywell Pro 4000 thermostat.

5.2 Manual Override Options
The Honeywell Pro 4000 thermostat offers manual override options, allowing users to temporarily adjust temperature settings without altering the programmed schedule. Temporary overrides are ideal for short-term changes, while permanent overrides modify the setpoint until updated. To use a temporary override, press the buttons to adjust the temperature, and the thermostat will revert to the programmed schedule at the next set period. For permanent overrides, modify the setpoint in the programming menu, and it will remain until changed. These options provide flexibility for unexpected changes in your schedule or comfort needs. Refer to the user manual for detailed steps on how to perform overrides, ensuring your thermostat operates according to your preferences while maintaining energy efficiency.
5.3 Temporary vs. Permanent Overrides
The Honeywell Pro 4000 thermostat allows users to choose between temporary and permanent overrides, offering flexibility in temperature control. Temporary overrides adjust the setpoint until the next programmed period, while permanent overrides change the temperature indefinitely. Temporary overrides are ideal for short-term adjustments, such as when you’re home unexpectedly, while permanent overrides are better for long-term changes. To perform a temporary override, press the buttons to set the desired temperature, and the thermostat will revert to the schedule at the next programmed time. For permanent overrides, modify the setpoint in the programming menu, and it will remain active until updated. This feature ensures you can customize your comfort without disrupting your energy-saving schedule. Always refer to the user manual for step-by-step guidance on using overrides effectively.

Energy-Saving Tips and Settings
Optimize energy use with programmable schedules, adjusting temperatures when away, and utilizing energy reports for insights. The AIR feature ensures efficient heating and cooling by adhering to set times.
6.1 Optimizing Your Temperature Settings
Optimizing your temperature settings on the Honeywell Pro 4000 thermostat is key to maximizing energy efficiency and comfort. Set your thermostat to 68°F for heating and 78°F for cooling when occupied. Lower the temperature by 8-10°F when away or sleeping to save energy. Use the programmable schedule to adjust temperatures based on your daily routine, ensuring the system runs only when needed. For added efficiency, enable the Adaptive Intelligent Recovery (AIR) feature, which learns your system’s performance to reach the desired temperature by the set time. Adjusting humidity levels and using the override options can further refine your settings for optimal performance and energy savings.
6.2 Using Program Schedules to Save Energy
Using program schedules on the Honeywell Pro 4000 thermostat is an effective way to save energy by aligning temperature settings with your daily routine. By programming different temperatures for weekdays and weekends, you can avoid unnecessary heating or cooling when no one is home. For example, set the thermostat to a lower temperature during work hours and a comfortable level when you return. The 5-2 day programming allows you to customize settings for weekdays and weekends separately. This feature ensures your system operates efficiently, reducing energy waste. Additionally, the Adaptive Intelligent Recovery (AIR) feature works with your schedule to reach the desired temperature by the programmed time, further optimizing energy usage. Regularly reviewing and adjusting your program schedules can help maximize energy savings and comfort year-round.
6.3 Understanding Energy Usage Reports
Energy usage reports on the Honeywell Pro 4000 thermostat provide insights into your heating and cooling consumption patterns. These reports help you track energy use over time, identifying trends and opportunities to optimize efficiency. By analyzing the data, you can adjust your temperature settings and program schedules to reduce waste. The thermostat’s ability to generate detailed reports allows you to make informed decisions about your energy usage. This feature complements the programmable scheduling and Adaptive Intelligent Recovery (AIR) functions, ensuring your system operates efficiently while maintaining comfort. Regularly reviewing energy usage reports can help you achieve significant savings on your utility bills and contribute to a more sustainable energy footprint.

Maintenance and Troubleshooting
Regular maintenance ensures optimal performance. Replace batteries annually, check for software updates, and clean the display. Troubleshoot common issues like incorrect temperatures or display malfunctions by resetting the thermostat or consulting the user manual for solutions.
7.1 Replacing the Battery
Replacing the battery in your Honeywell Pro 4000 thermostat is a straightforward process. First, ensure the system is turned off at the circuit breaker to avoid any electrical issues. Open the thermostat by gently pulling it away from the wall or removing the faceplate, depending on the model. Locate the battery compartment, usually found on the back or bottom of the thermostat. Remove the old battery and insert a new one, ensuring it is the correct type (typically AA or AAA alkaline). Close the compartment and reattach the thermostat to the wall. Turn the power back on and verify that the display lights up and functions properly. Regular battery replacement helps maintain accurate temperature control and prevents system shutdowns.
7.2 Common Issues and Solutions
Common issues with the Honeywell Pro 4000 thermostat include the display not turning on, incorrect temperature readings, or unresponsive buttons. If the display is blank, check the circuit breaker or ensure the thermostat is properly powered. For temperature inaccuracies, calibrate the thermostat by navigating to the settings menu and adjusting the temperature offset. If buttons are unresponsive, restart the thermostat by removing and reinserting the battery or resetting it. Additionally, ensure the thermostat is properly mounted and level, as this can affect performance. If issues persist, refer to the user manual or contact Honeywell support for assistance. Regular maintenance and updates can help prevent these problems and ensure optimal performance.
7.3 Resetting the Thermostat
To reset the Honeywell Pro 4000 thermostat, start by removing the batteries and waiting 30 seconds before reinserting them. This will restore default settings without affecting the programmed schedule. For a factory reset, press and hold the FAN button while inserting the batteries. Release the button and press HOLD to confirm. This will erase all custom settings, so you’ll need to reprogram the thermostat. If issues persist, ensure the thermostat is properly powered and mounted. Refer to the user manual for detailed reset instructions or contact Honeywell support for further assistance. Regular resets can help maintain optimal performance and resolve software-related issues.
Display Screen and Interface
The Honeywell Pro 4000 features a backlit display screen showing current temperature, setpoint, and mode. The interface is user-friendly, with clear icons and symbols for easy navigation.
8.1 Reading the Display Screen
The Honeywell Pro 4000 display screen provides clear, real-time information about your thermostat’s status. It shows the current temperature, setpoint, and operating mode (heating, cooling, or off). The backlit screen ensures visibility in low-light conditions. Icons on the display indicate active modes, such as a flame for heating or a snowflake for cooling. The screen also displays the current time and day, helping you manage your schedule. Additional symbols may appear, such as a battery icon when power is low or a hold icon during temporary overrides. The interface is designed to be intuitive, allowing users to quickly understand the thermostat’s current settings and status at a glance.
8.2 Understanding Icons and Symbols
The Honeywell Pro 4000 thermostat uses a variety of icons and symbols to communicate its status and settings. A flame icon indicates heating mode, while a snowflake symbolizes cooling. A battery icon appears when the battery is low, and a hold icon shows when a temporary override is active. The display also uses arrows to indicate temperature adjustments and a clock icon for scheduling. These symbols are designed to be intuitive, helping users quickly understand the thermostat’s current state. Refer to the user manual for a detailed list of all icons and their meanings, ensuring you can interpret the display accurately and make necessary adjustments efficiently.

Additional Features and Upgrades
The Honeywell Pro 4000 offers additional features like Adaptive Intelligent Recovery and smart home integration. Upgrades include touchscreen models and compatible accessories for enhanced, user-friendly energy efficiency.
9.1 Compatible Upgrades and Accessories
The Honeywell Pro 4000 thermostat can be enhanced with various upgrades and accessories to improve functionality. For instance, users can upgrade to a backlit display for better visibility or opt for a touchscreen model like the VisionPRO 8000, which offers advanced features. Additionally, compatible accessories such as wireless sensors or smart home integration modules can be installed to enable remote control and smart system compatibility. These upgrades are designed to enhance user experience and energy efficiency. It is recommended to consult a professional installer to ensure compatibility and proper installation of any upgrades or accessories for the Honeywell Pro 4000 thermostat.
9.2 Integrating with Smart Home Systems

The Honeywell Pro 4000 thermostat can seamlessly integrate with popular smart home systems, enhancing its functionality and convenience. It is compatible with systems like Samsung SmartThings and Apple HomeKit, allowing users to control their thermostat via voice commands or smartphone apps. This integration enables features such as remote temperature adjustments and energy usage monitoring. Additionally, the thermostat can be paired with Amazon Alexa or Google Assistant for voice control, making it easier to manage your home’s climate. For a smooth integration, ensure your system meets the compatibility requirements and follow the setup instructions provided in the Honeywell Home app or user manual. Professional installation may be recommended for complex smart home setups to ensure optimal performance and compatibility.

The Honeywell Pro 4000 thermostat offers a perfect blend of energy efficiency, ease of use, and advanced features. Its programmable settings and smart home compatibility make it a valuable addition to any home, helping users save energy and maintain comfort. With a comprehensive user manual and reliable technical support, the Pro 4000 is a smart choice for homeowners seeking a modern, intuitive thermostat solution.
10.1 Summary of Key Features
The Honeywell Pro 4000 thermostat offers a 5-2 day programmable schedule, allowing users to set different temperatures for weekdays and weekends. It features Adaptive Intelligent Recovery (AIR), which ensures the programmed temperature is reached by the scheduled time. The thermostat includes a backlit display for easy readability and supports up to 2 stages of heating and cooling. It is compatible with smart home systems, enhancing its functionality. Energy-saving features like programmable schedules and manual overrides help reduce energy consumption. The user-friendly interface and comprehensive user manual make it easy to navigate and customize settings. With its robust design and advanced features, the Honeywell Pro 4000 is a reliable choice for homeowners seeking efficient temperature control and energy savings.
10.2 Importance of Proper Usage
Proper usage of the Honeywell Pro 4000 thermostat is crucial for maximizing energy efficiency, extending system life, and ensuring optimal performance. By following the user manual and programming schedules correctly, users can achieve significant energy savings. Features like Adaptive Intelligent Recovery (AIR) and manual overrides work best when used as intended. Improper settings or overrides can lead to increased energy consumption and reduced system longevity. Regular maintenance, such as replacing batteries and updating settings, is essential for reliable operation. Adhering to the guidelines ensures the thermostat functions efficiently, providing consistent comfort while minimizing energy costs. Proper usage not only enhances performance but also supports long-term cost savings and environmental benefits.