A frozen AC is a term used when ice forms on your unit’s evaporator coil, which is usually caused by an interruption in the heat transfer process. This disruption is often caused by various issues within the system. If you notice that your AC is frozen, turn it off immediately to let it thaw and avoid further damage.
At HVAC Precision Experts, our technicians are here to help you repair a frozen air conditioner! Regular maintenance and routine cleanings can also help prevent this problem from occurring. Keep reading to learn why air conditioners freeze and how to combat the problem.
How To Thaw Your Air Conditioner
An HVAC expert can correct a frozen air conditioner by identifying and solving the issue that caused it. However, you’ll want to thaw your unit to prevent added strain on the machinery.
Before the technician arrives, take the following steps to aid the thawing process:
- Turn off the AC: If you notice that your AC is frozen, turn off the system at the thermostat to avoid further damage.
- Change the fan setting to “on”: Warm air will blow on the coil to melt the ice.
- Allow time for the ice to melt: Thawing your AC can take a few hours or more, depending on the severity of the freezing.
- Check for airflow issues: Inspect the air filters, vents and ductwork for any airflow obstructions.
Common Causes Of A Frozen AC
A frozen cooling system is a cruel form of irony! There are a few potential causes of this problem, all of which can be corrected with professional assistance. Knowing what causes ice to form on your system will help you prevent this issue in the future.
Low Refrigerant Levels
If the AC is low on refrigerant, it may indicate a leak and inadequate cooling. As refrigerant leaks within the system, the pressure will drop inside the machinery and cause the coils to freeze. When this occurs, our technicians will check and correct the refrigerant levels in the system.
Dirty Evaporator Coil
An accumulation of dirt and debris on the evaporator coil makes it difficult for the refrigerant to absorb heat, thus limiting the heat transfer. This leads to the entire system becoming frozen. A technician will use a soft brush or specialized coil cleaner to remove dirt from this component.
Problems With The Condenser Unit
Problems with the condenser unit can interfere with the heat exchange process. Our technician will check the machinery to determine the underlying issue. Common issues include a malfunctioning fan, clogged coils or other damage to the system.
An incorrectly calibrated or faulty thermostat may cause the AC to run constantly. One of our professionals will check to see if the thermostat is functioning correctly and calibrated accurately. If the thermostat is malfunctioning, it may require a replacement.
Improperly Functioning Blower Motor
The blower motor should be checked to ensure it’s operating properly. An inefficient blower motor can result in insufficient airflow, causing the evaporator coil to freeze. It will need repairs or a replacement if the problems persist.
Dependable Culpeper AC Repair Services
If you need to repair a frozen air conditioner or require simple routine maintenance, contact HVAC Precision Experts. We have been providing top-quality HVAC services to the Culpeper, Fredericksburg and other northern Virginia areas for over 15 years.
Contact our team to schedule your next AC repair service today!