An air conditioner can freeze up due to a variety of reasons. Understanding the most common causes is important if you ever have this problem. You should always turn off your AC system as soon as possible if you notice it is freezing up. Reaching out to an experienced HVAC company is always a good idea if your system has water damage or dirty coils. These are the situations that are better left to a service professional with training and experience.
Here are a few of the most common reasons why your air conditioner might be freezing up.
1. Low Refrigerant Levels
One of the most common reasons for an AC to freeze up is low refrigerant levels. Typically, this happens because of changes in pressure in your system. These pressure changes may cause your refrigerant levels to become too low, which makes it difficult for your system to blow cool air. Contacting an HVAC technician is always important to further inspect your system.
2. Dirty Coils
Your AC system may freeze up due to dirty coils. The extra layer of dirt on the coils makes it difficult to absorb water, which can cause freezing issues. Condensation can quickly build up on the coils and eventually become icy. This also happens a lot of times due to an overflowing drip pan, as it causes the coils to become waterlogged and eventually turn into ice.
3. Lack of Airflow
Poor airflow can also cause condensation on the coil to turn into ice. Always replacing your air filters on a regular basis is important in maximizing airflow. Problems with airflow can also happen due to blocked grates or closed dampers. Inspecting each vent by holding your hand in front of the vent is an effective way to determine if you have any airflow problems.
At Mountainside Air Conditioning & Heating, we focus on helping residents in Phoenix and the surrounding areas. We do heating and cooling services, preventative maintenance checks, and ductless mini-split installations. Our goal is always to provide top-quality HVAC services at a fair price. Give Mountainside Air Conditioning & Heating a call today to learn more.