Unlock Trane Thermostat: Fix Lock Issues Fast!

Unlock Your Trane Thermostat and Regain Control

Trane thermostats are renowned for their precision, reliability, and user-friendly interfaces, making them a staple in homes and businesses seeking optimal climate control. These smart devices offer a range of benefits, including energy efficiency, programmable schedules, and remote access capabilities, all designed to enhance comfort and reduce utility bills.

However, even the most advanced technology can sometimes present unexpected challenges. One common frustration experienced by Trane thermostat users is the accidental or unintended activation of the Lock Feature. This feature, designed to prevent unauthorized adjustments, can inadvertently lock users out of their own temperature controls, leading to discomfort and inconvenience.

Imagine needing to adjust the temperature on a sweltering summer day, only to find your Trane thermostat stubbornly locked. This scenario underscores the importance of knowing how to quickly unlock your Trane thermostat and regain control of your home’s climate.

This article serves as your comprehensive guide to resolving lock issues on your Trane thermostat. We’ll provide clear, step-by-step instructions to unlock your device, empowering you to restore your preferred settings and maintain a comfortable environment. Let’s dive in and unlock the potential of your Trane thermostat.

Understanding the Lock Feature on Your Trane Thermostat

Now that you appreciate the convenience and control a Trane thermostat offers, it’s crucial to understand the function that sometimes gets in the way: the Lock Feature. This isn’t a malfunction; it’s a deliberate safeguard designed to prevent unwanted alterations to your carefully configured settings. Let’s delve into its purpose, variations, and how to recognize when it’s active.

The Purpose of the Lock Feature

At its core, the Lock Feature is a security measure. Its primary function is to prevent unauthorized changes to your thermostat’s settings.

This is particularly useful in several scenarios:

• Households with children: Prevents curious little hands from accidentally raising the temperature in the dead of winter, or turning the AC off on a scorching summer day.

• Rental properties: Landlords can maintain consistent temperature settings, preventing tenants from running up exorbitant energy bills.

• Commercial buildings: Ensures consistent climate control, preventing individual employees from overriding pre-set schedules optimized for energy efficiency.

In essence, it provides a layer of control, ensuring that the thermostat operates according to the desired parameters.

Different Types of Lock Modes

It’s important to recognize that the Lock Feature isn’t an all-or-nothing proposition. Trane thermostats often offer different levels of restriction, catering to varied needs. Here are a couple of most common modes:

• Partial Lock: This mode typically allows users to make temporary adjustments to the temperature, within a pre-defined range. For example, you might be able to raise or lower the temperature by a few degrees, but you can’t alter the programmed schedule or system settings.

• Full Lock: As the name suggests, this mode completely restricts access to all thermostat functions. No temperature adjustments, no schedule modifications – nothing can be changed without unlocking the device. This is the most secure option, providing the highest level of protection against unauthorized tampering.

The specific options available will depend on your particular Trane thermostat model, so always consult your user manual for details.

Identifying a Locked Thermostat

Knowing how to tell if your thermostat is locked is the first step toward regaining control. Trane thermostats provide visual cues to indicate when the Lock Feature is enabled. Here are some common indicators:

• Lock Icon: The most obvious sign is a lock icon displayed on the screen. This icon may be a simple padlock symbol or a more stylized representation, but its presence clearly indicates that the thermostat is locked. The location of the lock icon on the screen can vary based on the model of the thermostat.

• Lock Messages: Some models will display a message such as "Locked," "Keypad Locked," or "Restricted Access."

• Unresponsive Buttons: If you press buttons on the thermostat and nothing happens, it’s a strong indication that the Lock Feature is active. The screen might light up, but your input will be ignored.

By familiarizing yourself with these indicators, you’ll be able to quickly determine if your Trane thermostat is locked and take the appropriate steps to unlock it.

Method 1: Unlock Using Your Trane Thermostat’s User Manual

While understanding the Lock Feature provides context, the practical question remains: how do you disable it? Fortunately, the solution is often readily available in a place many overlook: your Trane thermostat’s user manual. This seemingly simple document is your first and best resource for resolving this issue.

The Undervalued User Manual

In our digital age, the user manual is often relegated to the bottom of a drawer or, worse, the trash. This is a mistake. The user manual is specifically designed for your thermostat model, containing detailed instructions and troubleshooting tips unique to your device.

It’s tempting to search online for a quick fix, but generic solutions can be ineffective or even detrimental. Consulting the manual ensures you’re following the manufacturer’s recommended procedures, minimizing the risk of unintended consequences.

Think of the user manual as your thermostat’s personal instruction guide, tailored specifically to its features and functionalities.

Locating Unlocking Instructions Using the Model Number

The key to unlocking your thermostat using the manual lies in identifying your specific model number. This number is typically found on a sticker located on the thermostat itself.

Common locations include:

• The back of the thermostat (you may need to detach it from the wall plate).
• Inside the battery compartment.
• On the side of the unit.

Once you have the model number, visit the Trane website. Most manufacturers now offer digital versions of their manuals, accessible through a simple search using the model number.

Alternatively, you can try searching online for "[Your Trane Model Number] user manual." This search will often lead you directly to a downloadable PDF.

Once you’ve located the manual, use the search function (Ctrl+F on a computer) to look for keywords like "lock," "unlock," "keypad," or "security." These terms will likely lead you to the relevant section outlining the unlocking procedure.

Pay close attention to the specific steps outlined in the manual. Different models may have different unlocking sequences.

Visual Aids: A Sample User Manual Excerpt

(Note: Since I cannot provide live screenshots, I will describe what a typical user manual excerpt might look like. Imagine a small image here depicting a page from a hypothetical Trane thermostat manual.)

A typical excerpt might include the following:

Section: Security Settings

Topic: Unlocking the Keypad

Instructions:

1. Press and hold the "Mode" button for 5 seconds.
2. Enter the 4-digit lock code (default is 0000).
3. Press the "OK" button to confirm.

Diagram: (Image of the thermostat with arrows pointing to the "Mode" and "OK" buttons)

The manual will often include a visual diagram, illustrating the buttons you need to press. This visual aid can be particularly helpful if the instructions are unclear or if you’re unfamiliar with the thermostat’s interface.

Remember, the specific instructions will vary depending on your Trane thermostat model. Always refer to the manual that corresponds to your specific device for the most accurate and effective unlocking procedure.

While consulting the user manual is always recommended, sometimes a more direct approach is quicker. Many Trane thermostats can be unlocked directly through specific button or touchscreen inputs. This method bypasses the need to search through documentation, offering a potentially faster solution.

Method 2: Direct Keypad/Touchscreen Input to Unlock

This section explores those direct input methods, providing sequences and troubleshooting advice to get your thermostat unlocked and back under your control.

Common Unlocking Sequences

Trane thermostats, while varying in specific design, often share similar underlying software and control systems. This means there are some common unlocking sequences that are worth trying first, regardless of your specific model.

• The "Hold Button" Method: This frequently involves pressing and holding a combination of buttons simultaneously for a specified period, usually 5-10 seconds. Common button combinations include:

  • "Up" and "Down" arrows.
  • "Mode" and "Fan" buttons.
  • The center button (often a "Menu" or "Select" button) and the "Return" button.

  The display should change or a confirmation message should appear if the sequence is successful.

• The "Sequence Input" Method: Some models require a specific sequence of button presses. This might involve pressing buttons in a particular order, such as "Up," "Down," "Up," "Menu." Again, the user interface should react to a correct input.

Model-Specific Instructions

While generalized sequences are helpful, Trane offers a diverse range of thermostat models. The following are unlocking sequences for specific known models. However, keep in mind that software versions can vary even within the same model number, so these instructions might not be universally applicable. If these specific instructions fail, revert to the troubleshooting section below.

• Trane XR524/XL824:

  1. Press and hold the center button until the menu appears.
  2. Navigate to Settings.
  3. Look for the Lock option.
  4. Enter the code, if prompted, or disable the Lock feature.

• Trane XL950:

  1. Press the Menu button.
  2. Select Installer Options.
  3. Enter the installer code (default is often 1234, but may have been changed).
  4. Navigate to the Lock setting and disable it.

• Trane Touchscreen Thermostats (General):

  1. Look for a key icon on the screen.
  2. If present, touching and holding the icon may prompt you for a code.
  3. If you don’t know the code, try the default code (0000 or 1234).
  4. If that code does not work, proceed to Method 5 Factory Reset: A Last Resort Solution.

Troubleshooting Unsuccessful Attempts

Even with the correct sequence, unlocking your Trane thermostat can sometimes be problematic. Here are some common issues and how to address them:

• Unresponsive Buttons: Ensure your fingers are clean and dry, and that you are pressing the buttons firmly and directly in the center. If certain buttons are consistently unresponsive, the keypad itself may be faulty, which might require professional repair.

• Incorrect Code: If a code is required, and you are unsure of it, try the default codes (0000 or 1234). If those do not work, consult the User Manual for the specific model as mentioned in Method 1.

• Software Glitches: In rare cases, a temporary software glitch can prevent the thermostat from responding to the correct unlock sequence. Try turning the thermostat off and on again by removing it from the wall plate (if possible) or switching off the breaker that provides power to the HVAC system for a minute or two. Then, reapply power and retry the unlocking sequence.

• Low Batteries: Although less common on hardwired thermostats, low batteries in the thermostat can cause malfunctions. Replace the batteries with fresh ones and try the unlocking sequence again.

If you have exhausted all these options and still cannot unlock your thermostat, it may be time to move on to other methods described in this article or seek professional assistance.

While consulting the user manual is always recommended, sometimes a more direct approach is quicker. Many Trane thermostats can be unlocked directly through specific button or touchscreen inputs. This method bypasses the need to search through documentation, offering a potentially faster solution.

Method 3: Disable the Lock Feature Through Advanced Settings

Beyond direct button combinations, many Trane thermostats offer the option to disable the lock feature entirely through their advanced settings menus. This approach provides a more permanent solution, preventing accidental re-locking, and ensuring unobstructed access to your thermostat’s controls.

This section guides you through the process of accessing these advanced settings and permanently disabling the lock function. Keep in mind that specific menu names and locations might vary slightly depending on your Trane thermostat model.

Accessing the Advanced Settings Menu

The initial step involves navigating to the advanced settings or installer setup menu on your thermostat. This is typically accomplished through one of the following methods:

• Holding a Specific Button: Some models require you to press and hold a dedicated button, often labeled "Setup," "Menu," or a gear icon, for several seconds.

• Button Sequence: Other models might use a specific sequence of button presses to unlock the advanced settings. This could involve pressing "Up," then "Down," then "Menu," or a similar pattern. Check your user manual for the precise sequence for your specific model.

• Touchscreen Navigation: On touchscreen models, look for a settings icon or a menu option within the main display. Tap on this icon or menu to reveal further options.

  Navigating through the thermostat’s touchscreen to find the settings menu.

Once you’ve accessed the initial settings menu, you will need to locate the option for advanced settings, installer setup, or system setup. These options are often nested within the main menu, requiring you to scroll or tap through multiple screens.

Disabling the Lock Feature

Once you’ve successfully entered the advanced settings menu, the next step is to locate the lock feature setting. This setting might be labeled as "Lock," "Keypad Lock," "Security," or something similar.

Use the thermostat’s buttons or touchscreen to navigate to this option.

Once you’ve found the lock feature setting, you should be able to disable it. The method for disabling the feature will vary depending on the thermostat model.

• Toggle Switch: Some models use a simple toggle switch that you can flip to the "Off" position.

• Dropdown Menu: Other models use a dropdown menu where you can select "Off" or "Disabled."

• Confirmation Prompt: After selecting the disable option, you might be prompted to confirm your choice. Select "Yes" or "OK" to confirm.

IMPORTANT: After disabling the lock feature, exit the advanced settings menu and test the thermostat to ensure that the lock is indeed disabled. You should now be able to freely adjust the temperature and other settings without any restrictions.

Method 4: Using the Override Key to Unlock Your Thermostat

While not universally available on all Trane thermostat models, the Override Key function offers another avenue for unlocking your device, particularly in scenarios where other methods prove ineffective or the lock code has been misplaced. This feature, when present, essentially acts as a master key, granting temporary access to settings and bypassing the standard lock mechanism.

Understanding the Override Key Function

The Override Key isn’t a physical key, but rather a software-based function typically accessed through a specific combination of button presses or a hidden menu option. Its primary purpose is to provide a failsafe for authorized personnel (e.g., HVAC technicians, property managers) to adjust settings without requiring the user’s lock code. Think of it as a backdoor intended for responsible and authorized use.

Locating the Override Key Access Point

Finding the Override Key function requires careful examination of your thermostat’s interface and, ideally, consultation with your user manual. Here’s a breakdown of common access methods:

• Hidden Menu Sequences: Many Trane thermostats conceal advanced functions like the Override Key behind a specific series of button presses. These sequences are not intuitive and are usually documented only in the service manual or advanced user guides. A typical sequence might involve pressing and holding two or three buttons simultaneously for a set duration (e.g., "Fan" + "Up" + "Down" for 5 seconds).

• Installer Setup Menu: The Override Key might be accessible within the Installer Setup or Configuration Menu. Accessing this menu usually involves a more complex process of holding down a button or entering a specific code (often 9999 or 1234 if it hasn’t been changed from the default).

• Specialized Keypad Combinations: Some commercial or industrial Trane thermostat models may feature a dedicated keypad or touchscreen area where a specific combination of numbers or symbols activates the Override Key function. This is less common in residential models.

Utilizing the Override Key

Once you’ve located the Override Key access point, activating it usually involves one of the following actions:

• Entering a Default Override Code: In some instances, activating the Override Key will prompt you to enter a default code. This code is separate from the user lock code and is often a standard default code like "0000" or "1111". Again, refer to your manual for the correct override code.

• Confirmation Prompt: After entering the correct sequence or code, the thermostat may display a confirmation prompt, such as "Override Enabled" or "Settings Unlocked". This indicates that you now have temporary access to the locked settings.

Important Considerations

• Temporary Access: The Override Key typically provides temporary access only. After a set period (e.g., 15-30 minutes) or after power cycling the thermostat, the lock feature will likely re-engage.

• Model-Specific Instructions: The exact steps for locating and using the Override Key vary significantly depending on your specific Trane thermostat model. Always consult your user manual or the service manual (if available) for precise instructions.

• Potential for Misuse: Be aware that the Override Key function is intended for authorized use only. Misusing this function to bypass legitimate lock settings could lead to unintended consequences or system damage.

While the Override Key can be a valuable tool, its availability depends on your specific Trane thermostat model. Let’s now shift our focus to troubleshooting common issues that can arise when dealing with a locked thermostat, offering practical solutions to get you back on track.

Troubleshooting: Common Issues and Solutions

Even with the right instructions, unlocking your Trane thermostat can sometimes be challenging. This section addresses common problems users encounter and provides practical solutions to get your system back under control.

Thermostat Unresponsiveness

One of the most frustrating issues is an unresponsive thermostat. You press buttons, touch the screen, but nothing happens. This could stem from several causes.

• Power Issues:
  Start by checking the basics. Ensure the thermostat has power. Check the breaker. Replace the batteries if it’s a battery-powered model. A simple power interruption can sometimes freeze the system.

• Software Glitches:
  Like any electronic device, thermostats can experience software glitches. Try a soft reset by removing the thermostat from its wall plate for a few minutes. This can sometimes clear temporary errors.

• Hardware Problems:
  If the thermostat remains unresponsive after checking the power and performing a reset, it might indicate a hardware malfunction. In this case, professional repair is usually necessary.

Forgetting the Lock Code

Forgetting the lock code is a common predicament. Most Trane thermostats don’t have a "forgot password" option like many online accounts.

• Consult the User Manual:
  Your user manual may contain instructions on how to reset the lock code to the default setting or provide an alternative method for unlocking the thermostat if the code is lost. Always consult your user manual first.

• Contact Trane Support:
  In some cases, Trane customer support might be able to assist in resetting the code, but they will likely require proof of ownership and verification of your identity.

• Factory Reset:
  As a last resort, a factory reset will clear the lock code, but remember that it will also erase all your customized settings. This should only be considered if other options have failed.

The Lock Feature Keeps Re-Engaging

If the lock feature repeatedly activates itself, even after you’ve unlocked the thermostat, there may be a deeper issue at play.

• Check the Schedule:
  Some thermostats have scheduling features that can automatically lock the system at certain times. Review your schedule and ensure the lock function isn’t programmed to engage unintentionally.

• Administrator Settings:
  If the thermostat is part of a larger system (e.g., in a commercial building or rental property), an administrator might be remotely locking the device. Check with the relevant personnel.

• Malfunctioning Hardware:
  A faulty thermostat can sometimes exhibit erratic behavior, including repeatedly engaging the lock feature. If this persists, professional inspection is recommended.

Understanding Error Codes

Trane thermostats, like many sophisticated devices, use error codes to signal problems. While specific error codes vary across models, some relate to the locking mechanism.

• Consult the User Manual:
  Your user manual is the best resource for decoding error codes. It will provide specific explanations and troubleshooting steps for each code.

• Common Locking-Related Codes:
  Keep an eye out for codes related to security, access, or authorization. These may indicate problems with the lock function itself. Note the code down before contacting support or searching online forums.

• Online Resources:
  Online HVAC forums and communities can be valuable resources for identifying and resolving error codes. Search for your specific thermostat model and the error code to see if other users have experienced similar issues. Remember to independently verify any advice from online communities.

When to Call a Professional HVAC Technician

While this guide provides several methods for unlocking your Trane thermostat, certain situations warrant the expertise of a qualified HVAC technician. Knowing when to seek professional help can save you time, prevent further damage, and ensure your safety. It is always advisable to prioritize your safety.

Recognizing the Need for Professional Assistance

Attempting to fix complex HVAC issues without proper training can be dangerous and potentially void your thermostat’s warranty. Here are some key indicators that it’s time to call a professional:

• Persistent Unresponsiveness: If your thermostat remains unresponsive after trying all the troubleshooting steps outlined previously, it likely indicates a deeper hardware or software problem that requires professional diagnostics and repair.

• Wiring Issues: Never attempt to tamper with the wiring of your thermostat or HVAC system unless you are a qualified electrician or HVAC technician. Incorrect wiring can lead to electrical shock, fire hazards, and damage to your equipment. If you suspect a wiring problem, such as frayed wires, loose connections, or burnt components, contact a professional immediately.

• Malfunctioning Thermostat Components: If you notice visible damage to the thermostat, such as a cracked screen, broken buttons, or signs of water damage, it’s best to replace the unit. A technician can properly diagnose the extent of the damage and recommend the best course of action. Do not attempt to repair damaged components yourself.

• Lock Code Retrieval Failure: If you have exhausted all options for retrieving a forgotten lock code (including consulting the user manual and contacting Trane customer support) and are still unable to unlock your thermostat, a technician may be able to bypass the lock or replace the unit.

• HVAC System Malfunctions: If the thermostat lock is preventing your HVAC system from functioning correctly (e.g., the system is stuck in a heating or cooling mode), it’s crucial to address the underlying issue. A technician can diagnose the problem and ensure your system is operating safely and efficiently.

The Benefits of Professional HVAC Services

Engaging a professional HVAC technician offers several advantages:

• Expert Diagnosis: Trained technicians have the knowledge and tools to accurately diagnose complex HVAC problems.

• Safe and Effective Repairs: Professionals can safely and effectively repair or replace faulty components, ensuring your system operates reliably.

• Warranty Protection: Attempting to repair your thermostat yourself may void the warranty. Hiring a qualified technician ensures that any repairs are performed according to the manufacturer’s specifications, preserving your warranty coverage.

• Peace of Mind: Knowing that your HVAC system is in the hands of a qualified professional can provide peace of mind and ensure your comfort and safety.

Factory Reset: A Last Resort Solution

While simpler methods can often resolve a locked Trane thermostat, there are instances where a more drastic measure becomes necessary: the factory reset. Consider this option carefully, as it will erase all customized settings and revert the thermostat to its original, out-of-the-box configuration.

Understanding the Factory Reset

A factory reset, also known as a hard reset or master reset, restores a device to its default settings. This process clears all user-defined preferences, programmed schedules, and learned behaviors.

Think of it as giving your thermostat a fresh start, wiping its memory clean and requiring you to set it up from scratch.

When to Consider a Factory Reset

A factory reset should only be considered when other troubleshooting methods have failed. Specifically, consider it when:

• The thermostat remains locked despite attempting all the unlocking methods described earlier.

• The thermostat is experiencing persistent software glitches that affect its functionality.

• You’ve forgotten the lock code and cannot retrieve it through any other means.

• You are preparing to sell or give away the thermostat and want to ensure your personal settings are removed.

Do not perform a factory reset lightly. It should be a last resort, undertaken only after exhausting all other options.

Performing a Factory Reset on Your Trane Thermostat

The exact steps for performing a factory reset vary depending on the specific model of your Trane thermostat. However, the general process usually involves the following:

1. Consult your user manual. This is the most important step. The manual will provide the specific button combination or menu navigation required for your model.

2. Look for a “Reset” button or option. Some thermostats have a dedicated recessed reset button that requires a paperclip or similar object to press. Others have a reset option within the advanced settings menu.

3. Navigate to the advanced settings menu. This usually involves pressing and holding a specific button combination (e.g., the “Mode” and “Fan” buttons simultaneously) for several seconds. Refer to your user manual for the correct sequence.

4. Select the “Factory Reset” or “Restore Defaults” option. If prompted, confirm your choice to proceed with the reset.

5. Wait for the thermostat to restart. The thermostat will power down, erase its settings, and then restart with the default factory configuration.

Example: Trane XR524 Factory Reset

For the Trane XR524 model, the factory reset can be performed by:

1. Pressing the "menu" button.
2. Then selecting "settings".
3. Choose "reset" and follow the prompts.

These instructions are model specific and is used as an example for educational purposes.

Always consult your thermostat’s user manual to get specific and accurate steps on how to factory reset.

Cautions and Consequences

Before initiating a factory reset, be aware of the following:

• All your programmed schedules will be lost. You will need to reprogram your heating and cooling schedules from scratch.

• Your learned comfort preferences will be erased. The thermostat will no longer be able to anticipate your preferred temperature settings.

• You will need to reconnect the thermostat to your Wi-Fi network (if applicable).

• Any custom settings, such as display preferences or alert notifications, will be reset to their default values.

By performing a factory reset, you are essentially starting over with your thermostat. Ensure you are prepared for the time and effort required to reconfigure it to your liking.

If, after carefully considering the consequences, you determine that a factory reset is the best course of action, follow the instructions in your user manual precisely. If you are unsure about any step, contact a qualified HVAC technician for assistance.

While resorting to a factory reset can be a viable option, there are scenarios where even that drastic measure might not suffice. You might still be facing a perplexing issue or feel unsure about proceeding further. In these instances, seeking guidance from the experts becomes crucial.

Contacting Trane Customer Support for Assistance

Sometimes, despite your best efforts, unlocking your Trane thermostat can prove challenging. When you’ve exhausted all other troubleshooting avenues, reaching out to Trane’s dedicated customer support team can provide the expert assistance you need. They are equipped to handle complex issues and provide tailored solutions for your specific situation.

How to Reach Trane Customer Support

Trane offers multiple channels for customers to connect with their support team. Choose the method that best suits your preferences and urgency:

• Phone Support: For immediate assistance, you can call Trane’s customer support hotline. Check the Trane website for the most up-to-date phone number in your region. Be prepared to provide your thermostat model number and a detailed explanation of the problem you’re experiencing.
• Online Support Portal: Trane’s website features a comprehensive support portal with FAQs, troubleshooting guides, and product manuals. You may find answers to your questions here or submit a support request online.
• Email Support: For less urgent inquiries, you can email Trane’s customer support team. Expect a response within 1-2 business days.
• Social Media: While not the primary support channel, Trane may offer customer service through their social media accounts. Use this cautiously and avoid sharing sensitive information publicly.

Information to Have Ready

Before contacting Trane, gather the following information to expedite the support process:

• Thermostat Model Number: This is usually found on a sticker on the thermostat itself or in the user manual.
• Date of Purchase: If you have it, providing the purchase date can help with warranty information.
• Detailed Description of the Issue: Be as specific as possible about the problem you’re encountering.
• Troubleshooting Steps Taken: Outline the methods you’ve already tried to resolve the issue.

When to Contact Customer Support

Trane’s customer support team can assist with a wide range of issues, including:

• Complex Locking Issues: When standard unlocking methods fail.
• Thermostat Malfunctions: When the thermostat is unresponsive or displaying error codes.
• Warranty Claims: If your thermostat is still under warranty.
• Technical Questions: About thermostat features or settings.
• Finding a Local Technician: If you need on-site repairs or maintenance.

Don’t hesitate to reach out to Trane Customer Support if you’re feeling overwhelmed or uncertain about how to proceed. Their expertise can help you regain control of your thermostat and ensure your home comfort system is functioning optimally.

So, that’s about it on how to unlock Trane thermostat. Hope this helped you get your climate control back on track! Let me know if you have any more questions, and happy temperature adjusting!