Even though AC units produce cold air, you shouldn’t experience ice buildup on its pipes. If your system is developing ice, it could be a sign you need to contact an air conditioner repair expert. Use the following guide to understand what causes ice buildup and how you can prevent it from happening.

What Causes Ice to Form On Air Conditioning Units?

Restricted Airflow

Air conditioning systems use an evaporator coil and refrigerant fluid to cool down the air inside your home. As the refrigerant circulates through the coil, it absorbs heat from air passing through the system before allowing the colder air to circulate back into the house. If the flow of air is too slow, however, the refrigerant’s temperature can drop, causing the coil to freeze. 

Airflow restriction can stem from issues related to blower fan malfunctions, blocked air ducts, dirty evaporator coils, and clogged air filters. If you’re experiencing ice on your AC unit, check the air filter and vents to ensure there are no obstructions.

Refrigerant Leaks

When the refrigerant is low, it loses pressure as it circulates through the evaporator coil. As the pressure drops, the coil temperature will begin to decrease. This results in ice buildup on the coils, which can then spread out through the connecting lines.

This drop in pressure is usually associated with refrigerant leaks. Some indicators of a leak can include warm air coming from your vents, unusually high utility bills, and hissing sounds coming from the refrigerant lines. If you believe a leak is the cause behind any ice buildup, don’t try to fix the problem yourself. Because refrigerant is toxic and can lead to serious injury if mishandled, this job is best left to an air conditioner repair expert

Need help dealing with ice on your HVAC unit? Look no further than the air conditioner repair experts at Charcool Heating & Cooling Inc in Milledgeville, GA. From repairs and maintenance to new installations, these technicians can handle any HVAC issues helping to keep your home safe and comfortable. Call (478) 452-9554 or visit them online to schedule an appointment today.