Why Is My Braeburn Thermostat Not Cooling? – [How To Fix]

Your Braeburn thermostat plays a crucial role in maintaining that comfort by regulating your cooling system. The Braeburn thermostat is known for its reliability and user-friendly features, but like any electronic device, it can encounter problems over time.

However, what do you do when you realize that your Braeburn thermostat is not cooling as it should?

In this guide, we will walk you through the steps to troubleshoot and fix a Braeburn thermostat not cooling issue.

Understanding the common issues and learning how to address them can save you from discomfort and potential HVAC system damage. 

Before you consider calling a professional, let’s explore the essential troubleshooting techniques and solutions to get your cooling system back on track. Stay cool and comfortable as we delve into the world of thermostat problem-solving.

Symptoms of A Braeburn Thermostat Not Blowing Cold Air

Before diving into the troubleshooting process, it’s essential to grasp the significance of your thermostat and recognize the symptoms indicating that it’s not cooling properly. 

Understanding the problem will empower you to make informed decisions and effectively address the issue.

Inconsistent Temperature

One common sign is that your home’s temperature doesn’t match the thermostat setting. It may feel warmer than what you’ve selected.

No Cool Air

The most obvious indicator is the absence of cool air from your vents when the cooling system is running.

Constant Running

If your cooling system seems to run continuously without achieving the desired temperature, it’s a clear signal that something’s amiss.

Short Cycling

On the flip side, if your system frequently turns on and off rapidly, it’s another indication of a cooling problem.

Thermostat Display Issues

Sometimes, the thermostat’s display may show errors or behave erratically, further confirming a problem.

9 Causes of Braeburn Thermostat Not Cooling Properly

Understanding the reasons behind a Braeburn thermostat’s cooling malfunction is crucial for restoring your home’s comfort and energy efficiency. In this section, we’ll explore the common causes behind a braeburn thermostat heat not working as expected, providing insights and solutions to help you pinpoint and resolve the issue

1. Incorrect Temperature Settings

One of the most common reasons for a Braeburn thermostat not cooling is incorrect temperature settings. 

Ensure that your thermostat is set to a cooling mode and that the desired temperature is lower than the current room temperature.

2. Power Supply Issues

Check if the thermostat has a stable power supply. Dead or low batteries can cause the thermostat to malfunction. 

Replace the batteries with fresh ones and see if that resolves the cooling problem.

3. Dirty or Clogged Air Filters

Dirty or clogged air filters can restrict airflow in your HVAC system, making it less effective at cooling. 

Regularly replace or clean the air filters to ensure proper air circulation and cooling performance.

4. Blocked Vents

Inspect all the vents in your home to make sure they are not blocked or obstructed by furniture, curtains, or other objects. 

Blocked vents can impede the flow of cool air into the room.

5. Refrigerant Issues

Low refrigerant levels or refrigerant leaks can significantly impact the cooling efficiency of your HVAC system. 

If you suspect a refrigerant issue, it’s best to contact a professional HVAC technician for inspection and repairs.

6. Faulty Thermostat Wiring

Examine the thermostat wiring to ensure it’s properly connected. 

Loose or damaged wires can disrupt communication between the thermostat and the HVAC system, causing cooling problems.

7. Sensor Calibration

The thermostat’s temperature sensor may require calibration. Follow the manufacturer’s instructions to calibrate the sensor accurately for more precise temperature control.

8. Thermostat Compatibility

Check if your Braeburn thermostat is compatible with your HVAC system. Incompatibility can lead to issues with cooling. 

Consult the thermostat’s user manual or contact the manufacturer for guidance.

9. System Malfunctions

Sometimes, the cooling problem may not be related to the thermostat but rather a malfunction within the HVAC system itself. 

It’s advisable to have a professional HVAC technician diagnose and repair any system-related issues.

How To Fix the Braeburn Thermostat Not Cooling – Step By Step Guide

In this step-by-step guide, we’ll walk you through the safety precautions and materials needed in the troubleshooting and repair process to get your Braeburn thermostat back to efficiently cool your home.

From simple adjustments to potential component replacements, we’ll cover the necessary actions to ensure your thermostat works flawlessly and restores the cooling comfort you need.

Safety Precautions

Before you begin troubleshooting and attempting to fix a Braeburn thermostat that’s not cooling, it’s vital to prioritize safety. 

Working with heating, ventilation, and air conditioning (HVAC) systems can involve electrical components and potential hazards. Follow these safety precautions to ensure your well-being throughout the process:

1. Turn Off Power

Before touching any HVAC components, including your thermostat, turn off the power. 

Locate the circuit breaker or the main power switch for your cooling system and switch it off to prevent electrical accidents.

2. Cut Power to the Thermostat

If your thermostat has its own power source (common in digital thermostats), turn it off or remove the batteries. 

This step prevents accidental electrical shocks or damage to the thermostat.

3. Wear Protective Gear

Consider wearing safety goggles and work gloves, especially if you’re dealing with dust, debris, or sharp edges during inspections or maintenance.

4. Ventilation

Ensure there’s adequate ventilation in the area where you’re working. Some HVAC components may release fumes or gases, so proper airflow is essential.

5. Use the Right Tools

Always use the appropriate tools and equipment for the task. If you’re not sure which tools are required, consult the user manual or seek professional advice.

6. Avoid Overexertion

HVAC work can be physically demanding. Take regular breaks, stay hydrated, and don’t push yourself if you encounter difficulties.

7. Label and Document

If you need to disconnect wires during troubleshooting, label them to ensure you can reconnect them correctly. 

Additionally, take photos or notes to document the process for reference.

8. Know Your Limits

While many thermostat issues can be resolved by homeowners, some problems may require professional HVAC expertise. 

If you’re unsure or uncomfortable with a particular step, it’s safer to consult a licensed technician.


1. Screwdriver Set

A set of screwdrivers, including both flat-head and Phillips-head screwdrivers, will be essential for accessing and inspecting various components.

2. Voltage Tester

This tool allows you to check if electrical components are live or have power. It’s important for safety when dealing with wires and circuits.

3. Wire Strippers

In case you need to work with thermostat wires, wire strippers are essential for removing insulation from the ends of wires.

4. Multimeter

A digital multimeter helps you measure voltage, resistance, and continuity in electrical circuits, aiding in diagnosing thermostat issues.

5. Flashlight

A flashlight or headlamp can be handy for illuminating dark or hard-to-reach areas when inspecting your HVAC system.

6. Cleaning Supplies

Basic cleaning supplies such as a soft cloth or microfiber cloth and a mild cleaning solution will be needed for cleaning the thermostat and surrounding areas.


1. Replacement Batteries

If your thermostat is battery-powered, have spare batteries on hand in case you need to replace them.

2. Air Filter

Check if your HVAC system’s air filter needs replacement. If it’s dirty or clogged, having a replacement filter ready is crucial for efficient cooling.

3. Thermostat Manual

Keep the user manual for your Braeburn thermostat nearby. It contains important information about your thermostat’s wiring and settings.

4. Notepad and Pen

Use these to jot down notes, record wire colors and connections, or document any unusual findings during troubleshooting.

5. Labels and Tape

If you need to disconnect thermostat wires, use labels and tape to mark and identify each wire’s connection point.

Step by Step Troubleshooting A Braeburn thermostat that’s not cooling Properly

Troubleshooting a Braeburn thermostat that’s not cooling involves a systematic approach to identifying and resolving the underlying issues. Follow these steps carefully to diagnose and fix the braeburn thermostat not blowing cold air issue:

1. Verify Mode and Temperature

Ensure the thermostat is set to the cooling mode (usually indicated by a snowflake symbol) and set the desired temperature lower than the current room temperature.

2. Fan Settings

Check the fan settings to make sure it’s set to “Auto” rather than “On.” “Auto” mode means the fan only runs when the cooling system is actively cooling the air.

3. Locate the Air Filter

Find the air filter in your HVAC system. It’s usually located near the air handler or furnace.

4. Inspect and Replace

If the filter is dirty or clogged, replace it with a clean one. A dirty filter can restrict airflow and hinder cooling efficiency.

5. Locate the Circuit Breaker

Locate the circuit breaker panel for your HVAC system.

6. Check for Tripped Breakers

Inspect the circuit breakers. If any are in the “OFF” position, reset them to the “ON” position.

7. Turn Off Power

Ensure the power to your HVAC system is turned off.

8. Remove the Thermostat Cover

Carefully remove the thermostat cover to access the wiring.

9. Inspect Wiring Connections

Check the thermostat’s wiring connections. Make sure all wires are securely attached to their respective terminals. If any wires are loose or disconnected, reattach them.

10. Access Battery Compartment

If your thermostat uses batteries, open the battery compartment.

11. Check Battery Status

Test the batteries with a multimeter or replace them with fresh ones if they’re low or depleted.

12. Outdoor Unit

Examine the outdoor unit of your air conditioning system. Ensure it’s free from debris and obstructions.

13. Condenser Coils

Check the condenser coils for dirt or debris buildup. Clean them gently with a coil brush if necessary.

Additional Tips for Braeburn thermostat maintenance

Maintaining your Braeburn thermostat and HVAC system is key to preventing future cooling problems and ensuring long-term efficiency. 

Here are some additional tips to keep your cooling system in top shape:

Regular Cleaning

Dust and debris can accumulate around your thermostat and within your HVAC system. 

Periodically clean both the thermostat and the area around the air handler or furnace to maintain proper airflow and prevent overheating.

Replace Batteries Annually

If your thermostat uses batteries, make it a yearly routine to replace them, even if they still seem to be working fine. Fresh batteries ensure reliable operation.

Seasonal Inspections

Before the cooling season begins and again before the heating season, conduct a thorough inspection of your thermostat, wiring, and HVAC components. 

Look for loose wires, signs of wear, and any potential issues.

Change the Air Filter Regularly

Check and change your HVAC system’s air filter as recommended by the manufacturer. 

A clean filter ensures proper airflow and prevents strain on your cooling system.

Schedule Professional Maintenance

Consider scheduling annual or bi-annual HVAC maintenance with a qualified technician. 

They can perform in-depth inspections, clean critical components, and make adjustments to optimize performance.

Program Your Thermostat

If your Braeburn thermostat is programmable, take advantage of its features. 

Set energy-efficient temperature schedules that automatically adjust when you’re away or asleep to reduce energy consumption.

Seal Leaks

Inspect doors and windows for drafts and seal any gaps. Proper insulation and sealing can reduce the workload on your cooling system.

Monitor Thermostat Placement

Ensure your thermostat is not exposed to direct sunlight, drafts, or heat sources. Incorrect placement can lead to inaccurate temperature readings.

Keep Vents Clear

Make sure the air supply and return vents are unblocked by furniture or other obstructions to allow for optimal airflow.

Educate Household Members

Teach everyone in your household how to use the thermostat efficiently. Encourage them to avoid frequent temperature adjustments, which can strain the system.

Invest in a Smart Thermostat

Consider upgrading to a smart thermostat, which can provide advanced scheduling, remote control, and energy-saving features, making it easier to maintain comfort while conserving energy.

When to Call a Professional?

While troubleshooting and performing basic maintenance can resolve many thermostat and cooling system issues, there are situations where it’s best to seek the expertise of a professional HVAC technician. 

Here are some scenarios in which you should consider calling a professional:

No Improvement

If you’ve followed the troubleshooting steps and your thermostat still isn’t cooling correctly, it’s time to call in a professional. 

There may be underlying issues with the HVAC system that require specialized knowledge and tools.

Electrical Problems

If you encounter electrical issues such as exposed wires, sparking, or any signs of electrical hazards during your troubleshooting, do not attempt to fix them yourself. 

Call a professional immediately to address these safety concerns.

Refrigerant Leaks

Refrigerant is a critical component of your cooling system, and handling it requires expertise. 

If you suspect a refrigerant leak (e.g., a hissing sound near the indoor or outdoor unit), call a professional to assess and repair the leak.

Frozen Components

If you notice that the evaporator coils, refrigerant lines, or other components are frozen, it could indicate a serious problem. 

Attempting to thaw or fix these components without proper training can lead to further damage.

Strange Noises or Odors

Unusual noises, such as grinding, banging, or screeching, as well as unusual odors like burning or musty smells, can signal significant problems with your HVAC system. 

A professional can diagnose and address these issues safely.

Complex Wiring Problems

If your thermostat wiring is complex, or you’re unsure about the wiring connections, it’s best to have a professional handle it. Incorrect wiring can lead to system malfunctions or damage.

System Replacement

When your cooling system is old and inefficient, it may be more cost-effective to replace it with a new, energy-efficient model. 

A professional can assess your system’s condition and recommend an appropriate replacement.

Consistently High Energy Bills

If your energy bills have skyrocketed without a clear explanation, it may indicate an inefficient cooling system. 

A professional can evaluate your system’s performance and suggest improvements.

Safety Concerns

If you have safety concerns related to your cooling system, such as gas leaks or carbon monoxide leaks in gas-powered systems, call a professional immediately and evacuate your home if necessary.

Warranty Service

If your HVAC system is still under warranty, attempting DIY repairs may void the warranty. Always consult with the manufacturer or a certified technician for warranty-covered issues.

Frequently Asked Questions (FAQs)

What causes a thermostat to short cycle (frequently turn on and off)?

Short cycling can result from various issues, including a clogged air filter, low refrigerant levels, or a malfunctioning thermostat. Diagnosing and addressing the specific cause is crucial.

How often should I have my HVAC system serviced by a professional technician?

It’s advisable to schedule professional HVAC maintenance annually, ideally before the cooling and heating seasons. Regular maintenance can prevent problems and prolong the system’s lifespan.

What is the lifespan of a typical HVAC system?

HVAC systems typically last 15 to 20 years with proper maintenance. Older systems may become less efficient and more prone to problems, making replacement a cost-effective option.

Can I use a smart thermostat with my Braeburn system?

Compatibility varies, so check your specific Braeburn model’s compatibility with smart thermostats. Many modern Braeburn models are compatible with popular smart thermostat brands.

Why is my cooling system still not working even after I’ve followed all the troubleshooting steps?

Complex or persistent issues may require professional diagnosis and repair. Contact a licensed HVAC technician for a thorough assessment.


Troubleshooting and fixing a Braeburn thermostat not cooling can be a manageable task with the right knowledge and tools. 

By following our comprehensive guide, you’ve gained insights into the steps to take when faced with cooling issues. 

By applying the knowledge and guidelines provided in this guide, you can take proactive steps to resolve cooling issues with your Braeburn thermostat, maintain a comfortable home, and ensure the longevity of your HVAC system. 

Remember that regular maintenance and professional assistance are key to keeping your cooling system in optimal condition. Stay cool and comfortable year-round!

Scott Maupin