When the scorching summer heat hits Denver and Aurora, the last thing any homeowner wants is for their air conditioning unit to freeze up. Yet, this common issue can disrupt your comfort and lead to expensive repairs if not addressed promptly. Understanding why air conditioning units freeze up and knowing how to prevent and fix this problem is crucial for maintaining a cool, comfortable home.
Since 1999, Done® Plumbing, Heating, Cooling and Electric has been the trusted name in HVAC services across the Denver metro area, including Aurora, Morrison, Thornton, and beyond. Our motto, “One Call… It’s Done!,” reflects our commitment to providing swift, effective solutions for all your plumbing, heating, cooling, and electrical needs. With our comprehensive maintenance plans, we help homeowners avoid the frustration and inconvenience of a frozen air conditioner, keeping your home comfortable and your system in top condition.
In this blog post, we’ll explore the various reasons why air conditioning units freeze up—whether it’s low refrigerant levels, restricted airflow, or a faulty thermostat—and share why our team is equipped with the knowledge and tools to tackle any issue. By understanding the root causes and knowing when to call in the pros, you can prevent future AC problems and enjoy a worry-free summer.
Why Your AC Might Freeze
Low Refrigerant Levels
In many older homes in Aurora and Denver, aging air conditioning systems might suffer from refrigerant leaks. When the refrigerant level is too low, it can cause the AC unit to freeze up. This happens because the refrigerant helps remove heat from your home, and without enough of it, the system can’t function properly. As a result, the evaporator coils can get too cold and freeze.
Restricted Airflow
Many homes in Denver and Aurora have basements, which often come with unique duct configurations. These configurations can sometimes restrict airflow, especially if the ducts are blocked or dirty. When air can’t flow freely through the system, the coils can become too cold and freeze up. Regularly changing your air filters and ensuring that your vents are open can help maintain proper airflow.
Thermostat Issues
Denver’s weather can change rapidly, especially during spring and fall. These temperature fluctuations can cause older thermostats to malfunction, making your AC work harder than it should. If the thermostat isn’t reading the temperature correctly, it might not cycle off when it’s supposed to, leading to an overworked system that can freeze up.
Dirty Evaporator Coils
Denver’s dry climate means a lot of dust and pollen, which can quickly accumulate on your AC’s evaporator coils. When these coils get dirty, they can’t effectively transfer heat, causing them to freeze. Regular cleaning of your AC unit’s coils is essential to prevent this buildup and ensure your system runs smoothly.
Faulty Blower Fan
In homes with older HVAC systems, the blower fan might not be working as well as it used to. The blower fan’s job is to move air over the evaporator coils. If it’s not doing its job properly, the airflow is reduced, and the coils can freeze. This is a common problem in older units and should be checked by a professional.
Drainage Problems
Cold winters in Colorado can sometimes cause damage to the drainage components of your AC unit. If the drainage system is blocked or not working correctly, water can back up and freeze on the evaporator coils. Ensuring that the drainage system is clear and functioning properly is crucial, especially after the winter season.
Outdoor Temperature
Colorado’s unpredictable weather can also impact your AC unit. Running the AC when the outdoor temperature is too low can cause the system to freeze. It’s important to monitor the weather and avoid using your AC during cooler periods, especially in the spring and fall when temperatures can drop unexpectedly.
Regular Maintenance Helps Prevent AC Freezes
Keeping your AC unit in top condition is essential to prevent issues like freezing, and Done offers a comprehensive home maintenance plan designed to ensure your system runs smoothly year-round. Our plan includes:
- Seasonal Maintenance Visits: We schedule visits to prepare your system for both summer and winter, ensuring optimal performance in every season.
- Priority Service: With faster response times and priority scheduling, you’ll never be left waiting during peak seasons.
- Comprehensive Inspections: Our detailed checks of all HVAC components ensure everything is working perfectly, from refrigerant levels to airflow and drainage.
We understand that AC issues can arise unexpectedly, which is why we offer 24/7 emergency HVAC service. If you’re experiencing a frozen AC unit, our team is ready to help day or night. Serving the entire Denver metro area—we bring local expertise and prompt, reliable service to your doorstep.
One Call… It’s Done
Don’t let a frozen air conditioning unit disrupt your summer comfort. Regular maintenance and timely professional intervention can keep your AC running smoothly and efficiently. Trust the experts at Done to provide the best HVAC care in the Denver metro area. With our comprehensive maintenance plans and 24/7 availability, you can enjoy peace of mind knowing that your home’s comfort is in good hands.
