August 14, 2023
AC Unit in Cedarburg, WI

When the temperature outside drops and winter turns everything into a tundra, the last thing you want is for your HVAC system to stop working. Unfortunately, this is an all-too-common problem that many homeowners face during the winter. When your HVAC system freezes up, you must act quickly to prevent further damage.

1. Turn Off Your System

Discovering that your HVAC system has frozen up can be quite a frustrating experience. However, the first thing you should do in such a situation is not panic, but turn off your system. This is because leaving your frozen system running could cause further damage to your unit and make it more expensive to repair in the long run.

Turning off your HVAC system will also prevent the equipment from producing more moisture, which contributes to freezing. Therefore, if your HVAC system has frozen up, take a deep breath, stay calm, and turn off your system to help preserve the health of your equipment.

2. Check for Airflow Restrictions

The next step is to check for airflow restrictions. This can include anything from dirt and debris on your vents and filters, clogged drains or even a closed damper. These obstructions can cause the air handler coil to freeze as they block the airflow that keeps the internal components of your HVAC system cool. Ensure all your vents and filters are clean and nothing is blocking the airflow.

3. Check for Leaks

Another important step is to check for leaks. If there is a leak in your ductwork or air handler, the cold air from outside can reach your HVAC system’s internal components and cause them to freeze up. Check for any signs of leaking in your ductwork, and ensure all the seals are intact. If you find any leaks, it is best to get them repaired immediately.

4. Check Your Refrigerant Levels

You should also check your refrigerant levels. Not enough refrigerant in your HVAC system can cause the entire system to freeze, as the frozen air handler coil prevents proper cooling of the internal components. Ensure your system’s refrigerant levels are within the recommended range for optimal performance and efficiency.

5. Check Your Thermostat Settings

Check your thermostat settings. If your thermostat is set too low, it can cause your HVAC system to freeze up, as the colder temperature will make the internal components work harder than usual to maintain the desired temperature. Make sure that your thermostat is set to a temperature that is comfortable and conducive to optimal performance.

6. Clear Away Any Ice

If your HVAC system is covered in ice, it’s important to clear it away. Use warm water to melt the ice slowly and carefully, as using hot water or a sharp tool can damage the system. Dry off the unit once the ice is melted and remove any excess water.

7. Clean Your Condenser Coil

Another step you can take if your HVAC system has frozen up is to clean your condenser coil. A dirty or clogged condenser coil can prevent the air handler from cooling properly, freezing internal components. Ensure that your outdoor condenser coil is clean and debris-free to help keep your system running at optimal performance.

8. Call a Professional

A freeze-up in your HVAC system can be a frustrating and potentially costly problem. Taking these steps can help remedy the issue and prevent further damage from occurring. However, prevention is key, and regular maintenance and temperature control can help prevent a freeze-up from occurring in the first place. If you experience a freeze-up, don’t hesitate to contact a licensed HVAC professional to diagnose and repair the problem properly.

Reach out to Hometown Heating, Air & Electric, a trusted heating and air conditioning company based in Cedarburg, WI. We have the knowledge and tools to diagnose and repair issues quickly and efficiently, giving you peace of mind and a warm, comfortable home again. We will also recommend preventative measures that can help you avoid a frozen system in the future.

At Hometown Heating, Air & Electric, we offer heating and cooling repairs, installation new of new equipment, routine maintenance, indoor air quality assessments and solutions, ductless mini-splits, boilers, smart thermostats, gas furnaces, solar-ready systems, garage heaters, and electrical services for Cedarburg and the surrounding areas. Contact us today for more information or to schedule an appointment.

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