Why is my Air Conditioner Freezing Around the Coils?

Mar 19, 2020

Welcome to Alpine Heating & Air Conditioning, where we are committed to providing top-notch HVAC services to our valued customers. In this article, we will discuss a common issue with air conditioners - coil freezing. If you're facing this problem, we've got you covered! Read on to understand the causes, troubleshooting tips, and effective solutions to fix your air conditioner's freezing coils.

Understanding Air Conditioner Coil Freezing

Before we dive into the causes and solutions, let's first understand what coil freezing is and why it occurs. The coils in your air conditioner play a crucial role in the cooling process. The evaporator coil, located inside the indoor unit, absorbs heat from the indoor air, while the condenser coil, situated in the outdoor unit, releases heat into the outdoor air. When the coils freeze, it disrupts the normal heat exchange process, affecting the overall cooling performance of your air conditioner.

Common Causes of Air Conditioner Coil Freezing

Several factors can contribute to air conditioner coil freezing. It's essential to identify the root cause to effectively troubleshoot the issue. Here are some common causes:

  • Insufficient Airflow: Limited airflow across the evaporator coil due to a dirty air filter, blocked vents, or closed registers can lead to reduced heat absorption and coil freezing.
  • Low Refrigerant Levels: Inadequate refrigerant levels can cause a drop in coil temperature, resulting in freezing. This can be caused by leaks or improper installation.
  • Faulty Thermostat: A malfunctioning thermostat can cause your air conditioner to run longer than necessary, leading to excessive cooling and coil freezing.
  • Dirty Coils: Dirt, dust, and debris accumulation on the coils restrict airflow and hinder heat transfer, increasing the likelihood of freezing.
  • Defective Blower Motor: A malfunctioning blower motor can impede proper airflow, disrupting the heat exchange process and causing coil freezing.

Troubleshooting Tips for Air Conditioner Coil Freezing

While professional assistance is recommended for complex issues, here are some troubleshooting tips to try before calling in the experts:

  1. Check Air Filters: Regularly inspect and clean or replace your air filters to ensure proper airflow.
  2. Clear Obstructions: Ensure that vents and registers are not obstructed or blocked by furniture or other objects.
  3. Inspect Refrigerant Levels: If you suspect low refrigerant levels, contact a licensed HVAC technician to perform a thorough inspection and recharge if necessary.
  4. Examine Thermostat Settings: Double-check your thermostat settings to ensure they are accurate and functioning correctly.
  5. Clean Coils: Schedule regular maintenance to clean the coils and remove any dirt or debris that may affect airflow.
  6. Test Blower Motor: If there are indications of a faulty blower motor, contact a professional technician to diagnose and repair the issue.

Professional Solutions for Coil Freezing

If your air conditioner continues to experience coil freezing despite troubleshooting efforts, it's time to seek professional assistance. Our experienced technicians at Alpine Heating & Air Conditioning can provide the following solutions:

  • Thorough Inspection: Our technicians will conduct a comprehensive inspection to identify the exact cause of coil freezing and develop an appropriate solution.
  • Refrigerant Leak Detection: If low refrigerant levels are the culprit, we will conduct leak detection tests and promptly address any leaks found.
  • Cleaning and Maintenance: We offer professional coil cleaning and maintenance services to ensure optimal airflow and heat transfer efficiency.
  • Blower Motor Repair or Replacement: If your blower motor is defective, our technicians will repair or replace it to restore proper airflow.
  • Thermostat Calibration: We will calibrate your thermostat to ensure accurate temperature readings and prevent excessive cooling.

Don't let air conditioner coil freezing disrupt your comfort. Contact Alpine Heating & Air Conditioning today for prompt, professional assistance. Our team of experts is dedicated to resolving your HVAC issues efficiently, allowing you to enjoy reliable and efficient cooling all year round.

Alyson Horn
Interesting and informative read!
Nov 11, 2023