Does frost keep building up on your evaporator coils? This could be a sign of a major problem. There could be several reasons as to why evaporator coils may develop ice or frost around the copper piping. Regardless of the reason, it is something you will want to get checked out to prevent future problems and costly repairs to your central HVAC unit. Air Supply Heating & Air Conditioning will cover some of the most common reasons why your evaporator coils may be freezing up and why you need to call your HVAC repair technician.

Causes of Evaporator Coils Freezing Up; Refrigerant Running Low & Air Flow Imbalance

The evaporator coils are a group of copper tubing that is attached to a steel filter that is located inside the furnace. There are two major reasons as to why your evaporator coils may be freezing up. The first and most common reason is your refrigerant or coolant is running low. The other reason is an imbalance in air flow. There are several quick fixes that you can do before calling a professional HVAC technician. If it is one of these problems you will first want to follow these few basic steps to see if the problem might be minor and easily remedied.

Troubleshooting Frozen Evaporator Coils

Clogged or Dirty Air Filters – Your intake filter inside your home could be dirty and needing to be changed. When the intake flow becomes restricted the evaporator coils will freeze up. It is wise to change your air filters every 4 to 12 weeks depending on your living environment. Let’s face it, we live in a desert and dirt is a major issue here. If you have pets or children their activity brings in even more dirt than those who don’t. In this case, you should clean you filter once a month.
Closed Supply Vents – Some people will close the supply vents in rooms that they don’t frequent. Many feel it is a waste for air to flow in rooms not in use. This also restricts the air flow and could cause the evaporator coils to become off balance. All supply vents should be opened for proper efficiency.

Emergency Central Air Conditioner Repairs May Be Needed

If these simple fixes don’t seem to help the freezing problem you should then contact your favored HVAC technician. Some of these other fixes for freezing evaporator coils will take a professional HVAC technician to repair, such as:
Repairing Refrigerant Leaks – Low refrigerant can cause the evaporator coils to freeze up. Your HVAC Technician will repair the source of the leaks and refill the lost refrigerant.
Check the Blower – Another cause of the evaporator coils freezing up could be a malfunction of the blower. The blower helps to supply sufficient air flow to the evaporator coils. If there isn’t enough air flow to the evaporator coils–you guessed it–your evaporator coils freeze. The technician will make sure the blower is working correctly and that it doesn’t need any repair or replacing.
Cleaning the Coils – The evaporator coils can get clogged with dirt over time, often your coils need to be cleaned to supply proper air flow to your evaporator coils.

Emergency Central Air Conditioning Repairs & More in Summerlin, North LV, Henderson, Centennial, Enterprise, Lone Mountain Village, Paradise, Sunrise Manor, Spring Valley, Aliante, Desert Shores, Eldorado, Peccole Ranch, Silverado Ranch, Tuscany Village, Whitney, Winchester & Las Vegas Nevada

With Greater Las Vegas, NV soon heating up, you don’t want to be left without A/C. If you’re experiencing your evaporator coils freezing up, turn off your system and try the simple fixes first. If they don’t work, contact your HVAC technician before the summer kicks in to avoid major and more expensive problems which will leave you without cool air. For all of your repairs needs, contact Air Supply Heating & Air Conditioning today.