Noticing ice buildup on your air conditioner’s evaporator coils or refrigerant lines? A freezing AC unit is a common problem that can reduce cooling efficiency and cause costly damage if left untreated.
In this post, we’ll explore the main reasons why your AC unit is freezing up, steps you can take to prevent it, and how Pro Service Mechanical can help keep your system running smoothly.
❄️ 1. Restricted Airflow
One of the leading causes of AC freezing is restricted airflow. This happens when dirty air filters, blocked vents, or closed registers reduce the amount of warm air flowing over the evaporator coils, causing them to get too cold and freeze.
Regularly changing or cleaning your AC filter helps maintain proper airflow and prevents ice buildup.
🧊 2. Low Refrigerant Levels
If your AC is low on refrigerant due to leaks or poor installation, the pressure inside the system drops, causing the evaporator coil to freeze. Low refrigerant not only leads to freezing but also reduces cooling performance.
Only a certified HVAC technician should handle refrigerant refills and leak repairs.
🛠️ 3. Dirty Evaporator Coils
Dirt and debris buildup on the evaporator coils act as insulation, preventing heat transfer and causing the coils to become too cold and freeze over.
Regular professional cleaning helps keep coils clean and functioning properly.
🔧 4. Faulty Blower Fan
The blower fan circulates warm air over the evaporator coils. If the fan motor or blades are malfunctioning, airflow is reduced, increasing the risk of freezing.
🧹 5. How to Prevent Your AC from Freezing
Here are some simple steps to help keep your AC running smoothly and ice-free:
- Change air filters regularly (every 1-3 months)
- Keep vents and registers clean and unblocked
- Schedule annual HVAC maintenance and coil cleanings
- Address refrigerant leaks promptly with a professional
🛠️ How Pro Service Mechanical Can Help
Pro Service Mechanical provides expert AC maintenance and repair services in Saskatoon. From filter replacements to refrigerant checks and coil cleanings, we’ll ensure your system stays efficient and ice-free all summer long.
- Thorough system inspections
- Professional coil cleaning
- Refrigerant leak detection and repair
- Blower fan repairs and replacements
✅ Final Thoughts
A freezing AC unit is a warning sign that shouldn’t be ignored. Taking early action with regular maintenance and professional inspections can save you from costly repairs and keep your home comfortable. Contact Pro Service Mechanical for expert help today.
Schedule your AC service now and prevent freezing issues before they start.
