Honeywell RTH6580 Manual: A Comprehensive Guide
This comprehensive guide details the innovative features of your Honeywell RTH6580 thermostat. It provides essential information for setup,
programming, and troubleshooting. Explore wiring diagrams, scheduling options, and Wi-Fi connectivity for optimal home comfort and energy savings.
Welcome to enhanced home climate control! The Honeywell RTH6580 is a versatile and user-friendly thermostat designed to provide precise temperature management and energy efficiency. This model represents Honeywell’s commitment to innovative home comfort solutions, offering a blend of functionality and ease of use. As a globally recognized brand, Honeywell delivers reliable performance and cutting-edge technology.
This thermostat is suitable for a wide range of heating and cooling systems, making it a popular choice for both residential and light commercial applications. The RTH6580 boasts a clear, easy-to-read display and intuitive controls, simplifying programming and operation. It allows for customized scheduling to match your lifestyle, potentially reducing energy consumption and lowering utility bills.
Beyond basic temperature control, the RTH6580 offers features like temporary and permanent hold functions, fan control options, and system mode selection (heat, cool, auto). Its compatibility with various systems and potential for Wi-Fi connectivity further enhance its appeal. This manual will guide you through every aspect of the RTH6580, ensuring you maximize its benefits.
Key Features and Benefits
The Honeywell RTH6580 offers a compelling suite of features designed for optimal comfort and cost savings. A primary benefit is its 7-day programmability, allowing customized temperature schedules tailored to your daily routines. This minimizes energy waste by automatically adjusting settings when you’re away or asleep.

Intuitive controls and a clear display simplify operation, even for first-time thermostat users. The temporary and permanent hold functions provide flexibility, overriding programmed schedules when needed. Fan control options allow you to circulate air for improved comfort, while system mode selection (heat, cool, auto) ensures efficient operation in all seasons.
Potential Wi-Fi connectivity (depending on the specific model – RTH6580WF) unlocks remote access and control via a mobile app, offering convenience and peace of mind. Honeywell’s reputation for reliability and durability ensures long-lasting performance. Ultimately, the RTH6580 delivers a balance of advanced functionality, user-friendliness, and energy-saving capabilities, making it a smart investment for any home.
Understanding the Display Interface
The Honeywell RTH6580 features a user-friendly display designed for easy readability and navigation. The primary area showcases the current room temperature, prominently displayed for quick reference. Below this, you’ll find the set temperature, indicating your desired heating or cooling point.
Icons clearly represent the current system mode – heat, cool, auto, or off – alongside indicators for fan operation (auto or on). A calendar icon signifies programmed schedules are active, while hold icons denote temporary or permanent overrides. The display also incorporates battery level indicators, alerting you when replacement is needed.

Navigational buttons, typically located around the display, allow you to adjust temperatures, navigate menus, and program settings. Pay attention to the backlighting feature, which enhances visibility in low-light conditions. Familiarizing yourself with these elements ensures efficient control and a seamless user experience; The interface is designed to be intuitive, providing at-a-glance information and straightforward operation.
Initial Setup and Installation
Before installation, ensure your heating and cooling system is powered off at the breaker. Carefully remove your old thermostat, labeling the wires as you disconnect them – this is crucial for correct reconnection. The Honeywell RTH6580 typically uses a standard five-wire configuration, but variations exist. Consult a professional if unsure.
Mount the thermostat baseplate securely to the wall, using the provided screws and anchors. Connect the wires to the corresponding terminals on the baseplate, referencing your wiring diagram and the labels you created. Double-check all connections for tightness and accuracy.
Attach the thermostat body to the baseplate. Insert batteries (if required) and restore power to your HVAC system. The thermostat will power on and guide you through an initial setup process, including date, time, and system type configuration. Follow the on-screen prompts to complete the setup and ensure proper operation.
Wiring Diagram and Compatibility
The Honeywell RTH6580 is designed for compatibility with most standard 24V heating and cooling systems, including furnaces, air conditioners, and heat pumps. However, verifying compatibility is essential before installation. Refer to the detailed wiring diagram included in the manual, which illustrates the connections for common system configurations.
Typical wiring terminals include Rh (power), Rc (cooling power), W (heat), Y (cooling), and G (fan). Some systems may utilize a common wire (C) for consistent power; the RTH6580 supports systems with or without a C-wire, though a C-wire is recommended for optimal performance. Heat pump systems may require additional wiring for auxiliary heat and reversing valve control.
If your system deviates from standard wiring configurations, or if you are unsure about any connections, consult a qualified HVAC technician. Incorrect wiring can damage your thermostat or HVAC system. Always disconnect power before working with wiring, and carefully follow the diagram to ensure a safe and reliable installation.

Programming the Thermostat: Basic Settings
The Honeywell RTH6580 allows for straightforward programming of basic settings to customize your comfort. Begin by setting the current date and time using the thermostat’s interface. Accurate timekeeping is crucial for scheduled programming. Next, configure your preferred temperature units – Fahrenheit or Celsius – based on your preference.
The thermostat offers adjustable temperature differentials, controlling how much the temperature must change before the system activates. A smaller differential results in more consistent temperatures but potentially more frequent cycling. Explore the ‘System’ setting to select between Heat, Cool, Auto, or Off modes. Auto mode automatically switches between heating and cooling to maintain your setpoint.
Familiarize yourself with the ‘Delay’ settings, which allow you to postpone system activation for a specified period, preventing short cycling. These basic settings form the foundation for more advanced programming, such as creating customized schedules. Refer to the manual for detailed instructions on navigating the menu and adjusting each setting.
Setting Up Schedules: 7-Day Programmability
The Honeywell RTH6580 boasts a robust 7-day programmable schedule, allowing tailored comfort settings for each day of the week. Access the scheduling menu through the thermostat’s interface and select the day you wish to program. You can define up to four periods per day – Wake, Leave, Return, and Sleep – each with a unique temperature setting.
For each period, specify the start time and desired temperature. For example, set a warmer ‘Wake’ temperature for comfortable mornings and a cooler ‘Sleep’ temperature for energy savings overnight. The thermostat remembers these settings and automatically adjusts the temperature accordingly.

To streamline setup, utilize the ‘Copy Schedule’ function to replicate settings from one day to another. This is particularly useful for weekdays with consistent routines. Experiment with different temperature settings to find the optimal balance between comfort and energy efficiency. Detailed instructions and visual aids are available in the user manual.
Temporary and Permanent Hold Functions
The Honeywell RTH6580 offers both Temporary and Permanent Hold functions, providing flexibility in managing your home’s temperature. Temporary Hold overrides the programmed schedule for a specified duration. Simply adjust the temperature to your desired setting and activate the Temporary Hold. The thermostat will maintain this temperature until the next scheduled program period begins.
Permanent Hold, conversely, overrides the schedule indefinitely; This is ideal for situations where a consistent temperature is desired, regardless of the programmed settings. Activating Permanent Hold effectively disables the schedule until manually deactivated. To return to the programmed schedule, simply cancel the Permanent Hold through the thermostat’s menu.
These hold functions are easily accessible via the thermostat’s interface. Understanding the difference between Temporary and Permanent Hold allows for precise temperature control, adapting to changing needs and maximizing comfort. Refer to the manual for detailed step-by-step instructions on utilizing these features.

Fan Control Options
The Honeywell RTH6580 provides versatile fan control options to enhance your home’s comfort and air circulation. The ‘Auto’ setting operates the fan only during heating or cooling cycles, optimizing energy efficiency. This is the default setting and ensures the fan runs only when needed to distribute conditioned air.

The ‘On’ setting continuously runs the fan, regardless of whether the heating or cooling system is active. This provides constant air circulation, which can help even out temperatures throughout your home and improve air quality. However, it will consume more energy than the ‘Auto’ setting.
Accessing these settings is straightforward through the thermostat’s menu. Experimenting with both ‘Auto’ and ‘On’ modes allows you to determine the best option for your specific needs and preferences. Consider your home’s layout and insulation when selecting a fan control mode for optimal performance.
System Mode Selection: Heat, Cool, Auto
The Honeywell RTH6580 offers three primary system modes: Heat, Cool, and Auto. Selecting the correct mode ensures your thermostat operates efficiently and maintains your desired indoor temperature. The ‘Heat’ mode activates the heating system when the room temperature falls below the setpoint, providing warmth during colder months.
Conversely, the ‘Cool’ mode activates the cooling system when the room temperature exceeds the setpoint, offering relief during warmer periods. The ‘Auto’ mode intelligently switches between heating and cooling based on your programmed temperature settings, providing year-round comfort without manual adjustments.
Navigating these modes is simple via the thermostat’s interface. Choosing ‘Auto’ is ideal for climates with fluctuating temperatures, while ‘Heat’ or ‘Cool’ are best suited for consistent seasonal conditions. Proper mode selection is crucial for maximizing energy savings and maintaining a comfortable living environment.
Troubleshooting Common Issues
Encountering issues with your Honeywell RTH6580 is infrequent, but this section addresses common problems. A blank display often indicates low batteries; replace them immediately. If the thermostat isn’t responding, verify proper wiring and ensure the system’s power switch is on. Temperature discrepancies can stem from thermostat placement – avoid direct sunlight or drafts.
Heating or cooling not activating could signify a tripped circuit breaker or a system malfunction; check both. Incorrect time or date settings are easily corrected through the programming menu. Wi-Fi connectivity problems require verifying your network credentials and router functionality.
Before contacting support, attempt a thermostat reset. Consult the error code section for specific diagnostics. Regular maintenance, including battery checks and filter replacements, prevents many issues. Remember, a systematic approach to troubleshooting saves time and ensures optimal performance of your RTH6580.
Error Codes and Their Meanings
The Honeywell RTH6580 utilizes error codes to pinpoint system malfunctions. “E1” signifies a sensor issue, potentially requiring professional calibration or replacement. “E2” indicates a communication failure between the thermostat and the heating/cooling system – check wiring connections. “E3” suggests an unexpected temperature reading, possibly due to sensor damage or interference.
“F1” signals a flame rollout detection, a critical safety issue demanding immediate HVAC technician intervention. “F2” points to a high-limit switch activation, indicating overheating within the system. “L1” denotes low battery voltage, prompting immediate battery replacement. “P1” suggests a programming error; resetting the thermostat may resolve this.
These codes are displayed on the thermostat screen and are crucial for accurate diagnosis. Consult a qualified HVAC professional for codes beyond basic troubleshooting. Ignoring error codes can lead to system damage or safety hazards. Refer to Honeywell’s official documentation for a complete and updated list of error codes and their corresponding solutions.
Battery Replacement and Maintenance
The Honeywell RTH6580 requires regular battery maintenance to ensure uninterrupted operation. Low battery warnings appear on the display, indicating it’s time for replacement. Use two AA alkaline batteries; avoid rechargeable or lithium batteries, as they may cause inaccurate readings. Battery life typically lasts 12-24 months, depending on usage and battery quality.
To replace batteries, locate the battery compartment (usually on the side or back of the thermostat). Remove the old batteries and insert the new ones, ensuring correct polarity (+ and -). The thermostat may briefly lose settings during battery replacement; having your schedule noted is helpful.
Regularly clean the thermostat’s exterior with a soft, dry cloth. Avoid using liquids or abrasive cleaners, which can damage the display or housing. Periodically check the wiring connections to ensure they are secure. Proper maintenance extends the thermostat’s lifespan and ensures accurate temperature control.
Wi-Fi Connectivity and Mobile App Integration

The Honeywell RTH6580 offers Wi-Fi connectivity, enabling remote control and monitoring via the Honeywell Home app. Download the app (available for iOS and Android) and create an account to begin the setup process. Ensure your home Wi-Fi network is stable and operating on the 2;4 GHz band, as the thermostat may not support 5 GHz.
To connect, enter the thermostat into pairing mode (refer to the app’s instructions). Follow the on-screen prompts to link the thermostat to your Wi-Fi network. Once connected, you can adjust temperature settings, create schedules, and receive alerts from anywhere with an internet connection.
The Honeywell Home app provides advanced features like geofencing, which automatically adjusts the temperature based on your location. Integration with voice assistants (like Amazon Alexa or Google Assistant) allows for hands-free control. Regular app updates ensure optimal performance and security.
Remote Access and Control
With Wi-Fi connectivity established, the Honeywell RTH6580 unlocks convenient remote access and control through the Honeywell Home mobile app. This functionality allows you to manage your home’s temperature from virtually anywhere with an internet connection, providing unparalleled flexibility and peace of mind.
Using the app, you can override programmed schedules, adjust temperature setpoints, and switch between heating, cooling, and auto modes. Receive real-time alerts regarding extreme temperatures or system malfunctions, even when you’re away from home. Remote access is particularly useful for vacation homes or ensuring comfort upon your arrival.
The app’s intuitive interface makes remote control straightforward. Security features protect your access, preventing unauthorized adjustments. Enjoy the benefits of energy savings by remotely lowering the temperature when you’re away, and pre-heating or cooling your home before you return, maximizing comfort and efficiency.
Smart Home Integration (if applicable)
The Honeywell RTH6580, when paired with the Honeywell Home system, offers seamless integration with popular smart home platforms like Amazon Alexa and Google Assistant. This connectivity enables voice control of your thermostat, adding a layer of convenience to your daily routine.
Simply link your Honeywell Home account to your preferred voice assistant and use voice commands to adjust the temperature, change modes, or inquire about the current settings. Imagine saying, “Alexa, set the thermostat to 72 degrees,” or “Hey Google, what’s the temperature inside?”
Beyond voice control, integration allows for the creation of smart routines and scenes. For example, you can create a routine that automatically lowers the temperature when you say “Goodnight” or adjusts the settings based on your location. This interoperability enhances energy efficiency and provides a truly connected home experience, streamlining comfort and control.
Energy Saving Tips with RTH6580
Maximize energy savings with your Honeywell RTH6580 by utilizing its programmable features. Implement a 7-day schedule that aligns with your lifestyle, reducing heating or cooling when you’re away or asleep. Lowering the temperature by just 7-10 degrees for eight hours a day can significantly reduce your energy bill.
Take advantage of the thermostat’s “Hold” functions strategically. Use temporary holds for short-term deviations from your schedule, avoiding prolonged energy waste. Consider utilizing the “Auto” mode, allowing the thermostat to intelligently switch between heating and cooling based on your setpoints.
Regularly check and replace air filters to ensure optimal HVAC system performance. A clean filter allows for efficient airflow, reducing strain on your system and lowering energy consumption. Finally, explore Honeywell’s smart home integration for advanced energy management features and remote control capabilities, further optimizing your savings.
Resetting the Thermostat to Factory Defaults
Resetting your Honeywell RTH6580 to factory defaults clears all personalized settings, returning it to its original state. This is useful for troubleshooting, preparing the thermostat for a new user, or resolving persistent issues. Before proceeding, note that all programmed schedules, Wi-Fi connections, and custom preferences will be lost.
To initiate a factory reset, navigate to the thermostat’s menu. Typically, this involves pressing the “Menu” button, then selecting “Settings” or “Reset.” Confirm your choice when prompted, as this action is irreversible without re-programming. The thermostat will then restart, displaying the initial setup screen.
After the reset, you’ll need to re-establish your Wi-Fi connection and re-program your desired schedules and settings. Refer to the initial setup instructions in this manual for guidance. Remember to document your preferred settings beforehand to streamline the re-configuration process, ensuring a smooth transition back to your customized comfort levels.
Understanding Honeywell’s Brand Reputation
Honeywell boasts a long-standing reputation as a global technology and manufacturing leader, dating back to 1885. The company’s history is rooted in innovation, consistently delivering reliable and high-quality products across diverse industries, including aerospace, building technologies, and performance materials. This legacy of excellence extends to their home comfort solutions, like the RTH6580 thermostat.
Consumers consistently recognize Honeywell for its durability, advanced features, and commitment to energy efficiency. The brand is frequently cited for its user-friendly designs and robust performance, making it a trusted choice for homeowners. Positive user reviews often highlight the reliability of Honeywell products and their contribution to lower energy bills.
Choosing Honeywell signifies selecting a brand with a proven track record and a dedication to customer satisfaction. Their global presence and extensive support network further reinforce their commitment to providing long-term value. Investing in a Honeywell thermostat means benefiting from decades of engineering expertise and a brand synonymous with quality and innovation.
Comparison with Similar Honeywell Models
The Honeywell RTH6580 stands as a solid mid-range option within Honeywell’s thermostat lineup. Compared to the more basic RTH6570, the RTH6580 offers enhanced features like a larger display and potentially more advanced scheduling capabilities. However, it doesn’t quite reach the sophistication of Honeywell’s premium Wi-Fi enabled models like the T9 or T10 Pro Smart Thermostats.
While the RTH6580 lacks remote control via a mobile app, it provides a user-friendly interface for local programming. Models like the T9 offer geofencing, learning algorithms, and integration with smart home ecosystems, features absent in the RTH6580. The RTH6580 is a good choice for those seeking a programmable thermostat without the complexities – or cost – of smart features.
If you prioritize simplicity and affordability, the RTH6580 is a strong contender. For users desiring advanced control and energy savings through remote access and smart home integration, exploring the T-series models would be more beneficial. Ultimately, the best Honeywell thermostat depends on individual needs and budget.

Air Purification Technology by Honeywell
While the Honeywell RTH6580 is primarily a thermostat, Honeywell is a recognized leader in air purification technology. Though the RTH6580 doesn’t directly integrate air purification functions, understanding Honeywell’s broader expertise in this area is valuable. Honeywell offers a range of standalone air purifiers, like the KJ760F-P22W, designed to remove allergens, dust, and pollutants from indoor air.
These purifiers utilize technologies such as HEPA filtration and activated carbon filters to capture particles and odors. Some models, like those with CTOX regeneration technology, focus on removing formaldehyde, a common indoor air pollutant. Honeywell’s commitment to air quality extends beyond thermostats, offering comprehensive solutions for a healthier home environment.
Integrating an independent Honeywell air purifier alongside your RTH6580 can create a more comfortable and breathable living space. Consider this when addressing overall indoor air quality concerns, complementing the temperature control provided by the thermostat. Choosing Honeywell demonstrates a commitment to both comfort and well-being within your home.
Honeywell Product Range: Beyond Thermostats
Honeywell is a diversified technology and manufacturing company, extending far beyond residential thermostats like the RTH6580. Founded in 1885, it’s a Fortune 500 enterprise with a global presence, operating in sectors like aerospace, building technologies, and performance materials. Their product portfolio is incredibly broad, encompassing everything from aircraft engines and avionics to industrial automation systems.
Within the home, Honeywell offers security systems, including wireless scanners like the OH4502, and a wide array of smart home devices. They are also prominent in air purification, as seen with models like the KJ900, and gas and leak detection; This extensive range reflects Honeywell’s commitment to innovation and providing solutions for various aspects of modern life.
Choosing a Honeywell product, including the RTH6580, means benefiting from a company with a long-standing reputation for quality and reliability. Their dedication to creative technologies and strong leadership positions them as a trusted brand globally. Exploring Honeywell’s full range reveals a commitment to enhancing safety, comfort, and productivity.
Warranty Information and Support Resources
Your Honeywell RTH6580 thermostat is backed by a limited warranty, protecting against manufacturing defects. Specific warranty terms and duration vary, so it’s crucial to retain your proof of purchase and consult the warranty documentation included with the product. Generally, Honeywell warranties cover defects in materials and workmanship under normal use.
For support, Honeywell offers a comprehensive range of resources. Their official website provides access to frequently asked questions (FAQs), troubleshooting guides, and downloadable manuals, including this one for the RTH6580. You can also contact Honeywell’s customer support team via phone or online chat for personalized assistance.
Additionally, Honeywell maintains a network of authorized dealers and service providers who can offer professional installation and repair services. Utilizing these resources ensures your thermostat operates optimally and any potential issues are addressed promptly. Remember to register your product online to streamline the warranty process and receive important updates.
